NetNews Usenet Archive 1992 #31

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Xref: sparky rec.aviation.answers:29 news.answers:4869 Newsgroups: rec.aviation.answers,news.answers Path: sparky!uunet!zaphod.mps.ohio-state.edu!swrinde!sgiblab!news.kpc.com!kpc!peck.com!geoff From: geoff@peck.com (Geoff Peck) Subject: Frequently Asked Questions about Aviation (regular posting) Message-ID: <1993Jan2.083004.2053@peck.com> Followup-To: poster Reply-To: geoff@peck.com Organization: Geoffrey G. Peck, Consultant, San Jose, CA Date: Sat, 2 Jan 1993 08:30:04 GMT Approved: geoff@peck.com, news-answers-request@mit.edu Expires: Sat, 23 Jan 1993 08:00:00 GMT Lines: 777 Original-from: geoff@peck.com (Geoff Peck) Last-modified: 14 Dec 1992 by geoff@peck.com (Geoff Peck) Archive-name: aviation-faq This regular posting was last revised December 14, 1992. Changes since the last posting are marked by a vertical bar ("|") in the left margin. ("rn" and "trn" users may search for new materials using "g^|".) It answers frequently asked questions on rec.aviation, and provides a glossary of frequently-used acronyms, so posters don't need to provide translations of these terms. This posting was written by Geoff Peck (geoff@peck.com), with input from many other netters. The author takes full responsibility for any omissions or errors. (Use of this posting in flight is prohibited. :-) ) Comments and questions are most welcome. This article is now being automatically posted twice per month. [If you have trouble sending mail to geoff@peck.com, you may send to geoff@apple.com; it will be forwarded.] The questions which are answered include: Q1: How is rec.aviation organized? Q2: I'd like to learn to fly. How do I do it, how much does it cost, how long does it take? Q3: I want to buy a headset. What should I buy? Q4: OK, what about a portable intercom? Q5: Tell me about mail-order. Q6: I'm a private pilot. How should I log time in instrument conditions? Q7: Tell me about DUATS on-line weather briefings. Q8: Tell me about BITNET access and the aviation-digest list. Q9: How do I start a brand-new thread of articles? Q10: I'm a non-U.S. licensed private pilot. Can I fly in the U.S.? Q11: What about hang-gliding? Ultralights? Q12: Where can I get a copy of public-domain flight planning software and other good stuff on the net? Q13: I'm considering buying an airplane. How much will it cost? Q14: Can I use my cellular telephone in an airplane? Q15: Can I use a radio, either a broadcast or aviation receiver, in an aircraft? Q16: I have a physical disability and would like to learn to fly. How? Q17: What are the alternatives for taking an FAA written examination? Q18: Are slips with flaps prohibited in certain Cessnas? You can search for the question you're interested in in "rn" or "trn" using "g^Q12" (that's lower-case g, up-arrow, Q, and a number) where "11" is the question you wish. Or you may browse forward using <control-G> to search for a Subject: line. The Subject: lines and the lines of dashes are an experiment; please send comments on this format to geoff@peck.com The glossary follows the questions and answers. The new and exciting rec.aviation guide to proper spelling follows the glossary. ------------------------------ Questions and answers Subject: rec.aviation organization Q1: How is rec.aviation organized? A: There are now 13 distinct newsgroups which comprise rec.aviation: announce events of interest to the aviation community (moderated) answers frequently asked questions about aviation (moderated) homebuilt selecting, designing, building, and restoring aircraft ifr flying under Instrument Flight Rules military military aircraft of the past, present and future misc miscellaneous topics in aviation owning information on owning airplanes piloting general discussion for aviators products reviews and discussion of products useful to pilots simulators flight simulation on all levels soaring all aspects of sailplanes and hang-gliders stories accounts of flight experiences (moderated) student learning to fly It is suggested that you read rec.aviation for a little while before you post, so that you can best determine which subgroup is appropriate for your posting. In addition, the following newsgroups outside the rec.aviation hierarchy may be of interest: sci.aeronautics the science of aeronautics & related technology sci.aeronautics.airliners (forthcoming) (moderated) sci.military discussion about science & the military (moderated) rec.travel.air airline travel around the world ------------------------------ Subject: Learning to fly Q2: I'd like to learn to fly. How do I do it, how much does it cost, how long does it take? A: Learning to fly a single-engine airplane is usually accomplished by visiting an FBO (see acronym list below) or two and selecting one for your instruction. Costs vary widely, not only by geographic area, but also because different individuals take different amounts of time to learn to fly. You should expect that learning to fly in the U.S. will cost you between US$3,000 and US$5,000, and it will take about 60-80 hours of flying of which about 20-30 hours will be solo (on your own) and the rest with an instructor, spread out over a period of 3-6 months. For further information, send e-mail to geoff@peck.com (ask for the private pilot handout), and you can receive a helpful and comprehensive handout. [Note: sometimes, due to mail system problems, you may not get a copy of this handout when you ask for one -- if you ask and don't get a response within a week, or if you've asked before and didn't receive it, send me e-mail again, preferably containing some "alternate" e-mail addresses! If all else fails, send a self-addressed, stamped envelope to Geoff Peck at 3075 Marston Way, San Jose, CA 95148-3121] If your goal is to fly a glider or a helicopter, you need not start out by learning to fly a single-engine airplane. Learning to fly in a helicopter will cost about twice as much as learning to fly in an airplane. (In U.S. metropolitan areas, a typical trainer helicopter rents for about US$100/hour; a typical trainer-class airplane for US$30-50/hour.) Learning to fly in a glider will vary in cost from significantly less than the cost to learn in an airplane to about the same as learning to fly in an airplane. If you plan to learn to fly airplanes as well as gliders or helicopters, it is typically less expensive to do the airplane first and then the other aircraft type. If you're interested in flying gliders (soaring), in the U.S., contact the Soaring Society of America (SSA -- see below) for information on glider sites around the country. ------------------------------ Subject: Headsets Q3: I want to buy a headset. What should I buy? A: There are three types of aviation headsets which are commonly available: 1. Active noise-cancelling. These are in the $700-1000 range, and are available directly from Bose Corporation in Framingham MA, or from aviation supply houses (see below) which carry models by Telex and | David Clark. A new model from Peltor is due sometime in 1993. 2. Passive noise-cancelling. These are in the $90-$300 range, and come from a variety of manufacturers. David Clark is generally regarded as the "Rolls Royce" of headset makers, and their models are more expensive than the competition -- they stand up to amazing abuse. Recommended models include the H10-60, H10-20, H10-80, and H10-40, usually in that order. The H10-30 is not recommended (inferior microphone). A number of companies import "clones" of the David Clarks; many netters have found the Flightcom 4DX, at about $100, to be satisfactory. [Flightcom, Portland, Oregon: 1-800-432-4342] There are many, many more makers out there -- try 'em on and see what feels comfortable to you. [Other notable headsets: Peltor 7004, discount ~$210 which has a significantly different and possibly more comfortable "feel" -- buy it in preference to the 7003, which has an inferior dynamic microphone; Pilot PA11-20, list $229, discount $159; Pilot PA11-90 (a Peltor | "clone") list $299, discount $189; Telex Pro-Air 2000.] The Peltor | is probably the best choice for kids. 3. "Open-air," "Walkman-style". These are for quieter aircraft such as jets or sailplanes, and are _not_ recommended for single-engine use. ------------------------------ Subject: Intercoms Q4: OK, what about a portable intercom? A: Again, there are many different intercom makers out there. By far the most popular from the net's perspective are the Flightcom IIsx (mono) and Flightcom III (stereo), which can be bought as two-place or four-place units (there's a small expansion box for the rear seats). | Good squelch action, overall sound quality, audio entertainment inputs, | ability to mix headset models, sufficient output volume, durability, | and whether the instructor can talk during transmissions from the | left seat (without being heard over the air) are important factors. ------------------------------ Subject: Mail-Order Q5: Tell me about mail-order. A: For pilot supplies such as intercoms, headsets, tires, etc.: Aircraft Supply, Pittsburgh, Pennsylvania [1-800-245-0690] Central Aircraft Supply, Vancouver, Washington [1-800-426-6612] Chief Aircraft, Grants Pass, Oregon [1-800-447-3408] Marv Golden, San Diego, California [1-800-348-0014,1-800-433-0055 in CA] San-Val, Los Angeles, California [1-800-423-3281, 1-800-624-9658 in CA] Sporty's, Batavia, Ohio [1-800-LIF-TOFF, FAX 1-513-732-6560] The Airport Shoppe, San Jose, California [1-800-634-4744] Wickes Aircraft Supply, Highland, IL [1-800-221-9425] For aviation books: Airplane Things, Dallas, Texas [1-214-956-3510, FAX 1-214-956-3518] Aviation Book Company, Santa Clarita CA [1-800-423-2708, FAX 1-805-294-0035, direct 1-805-294-0101, 7:30am-4:30pm Pacific] Sporty's, Batavia, Ohio [1-800-LIF-TOFF, FAX 1-513-732-6560] Zenith Books, Osceola, WI 54020 [1-800-826-6600, FAX 1-715-294-4448, ask for aviation catalog] For aviation software, "techno-toys", etc.: Flight Computing Catalog [1-800-992-7737] All of these are reputable companies, with many satisfied net.customers. ------------------------------ Subject: Logging time in instrument conditions Q6: I'm a private pilot. How should I log time in instrument conditions? A: The key concept here, and in most logging questions, is that the requirements for LOGGING pilot time (in FAR 61.51) are completely distinct from the requirements for ACTING as pilot in command. If (1) you are the sole manipulator of the controls, and (2) you have at least a private certificate for that category and class of aircraft then you may log the time as pilot in command. It does _not_ matter whether or not you are in visual or instrument conditions, nor whether or not you have a "high-performance" endorsement and are flying an retractable-gear airplane. (If you are flying in IMC and are not instrument rated, you must have a current, instrument rated pilot who is rated to fly the aircraft in the plane with you. The instrument-rated pilot then _acts_ as pilot in command while you fly and log time as sole manipulator; the other pilot may also log the time spent in actual instrument conditions as pilot in command.) Much confusion stems from the long sentence in FAR 61.51(c)(2)(i) which governs who may log pilot-in-command flight time; this indented, specially punctuated "translation" of this clause should be helpful: (i) A recreational, private, or commercial pilot may log as pilot in command time only that flight time during which that pilot (1) is the sole manipulator of the controls of an aircraft for which the pilot is rated, OR (2) when the pilot is the sole occupant of the aircraft, OR, (3) except for a recreational pilot, when acting as pilot in command of an aircraft on which more than one pilot is required under (a) the type certification of the aircraft, or (b) the regulations under which the flight is conducted. Instrument flight is much easier, as FAR 61.51(c)(4) shows: (4) Instrument flight time. A pilot may log as instrument flight time only that time during which he operates the aircraft solely by reference to instruments, under actual or simulated instrument flight conditions. ... OK, so this means that (1) As a private pilot, you get to _log_ PIC whenever you are the sole manipulator of the controls of an aircraft for which you are rated. Note that "rated" in this case means "rating", as in "airplane, single-engine land", _not_ "endorsement", as in "high-performance endorsement", or (worse yet) insurance-company endorsement. (2) If you're the sole occupant of an aircraft and you hold a private pilot license or better, even if you aren't rated for that category and class of aircraft, you can log it as pilot in command (i.e., you're soloing a glider as a student glider pilot). (3) As a pilot (doesn't matter what kind), you get to log instrument flight time whenever you "operate the aircraft solely by reference to instruments". ------------------------------ Subject: DUATS on-line weather briefings Q7: Tell me about DUATS on-line weather briefings. A: If you can dial a U.S. (800) number, or you have access to the Internet, you can access DUATS, the FAA's Direct User Access Terminal System, at no charge. DUATS service is provided by two commercial vendors: voice info data line DTC (Data Transformation Corp.) 1-800-243-3828 1-800-245-3828 GTE Federal Sys Division (Contel) 1-800-345-3828 1-800-767-9989 GTE (Contel) DUATS may be accessed via the Internet; simply telnet to duat.gtefsd.com. If your machine seems to be brain-dead in the name server department, try 131.131.7.105. Non-pilots must use the machine duats.gtefsd.com (note the "s" in duats), address 131.131.7.106. (The old addresses, duat.contel.com, and duats.contel.com, will continue to work for several months.) You can use e-mail to contact GTE for help at system@gnd1.wtp.gtefsd.com . A shell script which allows an entire briefing to be obtained using a single command to the shell is available by request from geoff@peck.com GTE's 800-number dial-in lines now support v.32 (9600 baud). GTE DUATS may also be accessed via SPRINTNET; call the voice info line for a local access number. For DTC, 243-3828 is "AID-DUAT" and 245-3828 is "CHK-DUAT". If you're a U.S.-licensed pilot (student pilots and glider pilots without medicals included), it is to your advantage to obtain a DUATS user I.D. and to use that I.D. whenever you obtain a briefing. Users who sign on without giving an I.D. cannot file flight plans, and the briefing will not be recorded for the purposes of counting as a "legal" briefing. If you haven't used DUATS before, you can simply call the data number (300/1200/2400 baud, with MNP level 5 available) and register on-line. When registering, student pilots should use their student pilot certificate number which is also the medical certificate number; it begins with "BB" or "DD", and you need to type in the "BB" or "DD" as well as the digits. If your medical is less than about three months old, or you are a glider or other pilot who doesn't have a medical certificate, you may need to call the voice info numbers to get them to add you to the database. You must register with each provider independently; they provide similar levels of service. Several commercial weather vendors also exist, and each of them provides additional services which may not be available on DUATS. Jeppesen-Sanderson has two different services, Jeppesen DataPlan at 1-800- 358-6468 [voice] is designed for "big guys"; Jepp/Link at 1-800-553-7750 [voice] is an enhanced version of DUATS for "the rest of us". CompuServe Information Services (buy a starter pack from a local computer store, type "GO AWX") has local data access numbers throughout the country. WeatherBank, Inc. of Salt Lake City, UT, which also has more specialized information such as ROAB soundings and farm forecasts, as well as a longer online "history" (up to one year) than other vendors. ------------------------------ Subject: BITNET access and aviation-digest list Q8: Tell me about BITNET access and the aviation-digest list. A: If you live at a site which can't receive rec.aviation through normal (netnews) channels, you can have a digest mailed to you. At this time, all 13 rec.aviation subgroups are consolidated into a single digest; | it is not at this time possible to subscribe to a selected subset. To subscribe or unsubscribe, mail to "aviation-request@mc.lcs.mit.edu". As a BITNET address, I'm told that this is "aviation-request%mc.lcs.mit.edu@INTERBIT". Please, please DO NOT send mail to aviation-digest... To post to rec.aviation via e-mail, you can send the posting by mail to "rec-aviation-misc@cs.utexas.edu". To post to subgroups other than .misc, replace "misc" in this address with the name of the subgroup you wish. Note that this is an _automated_ posting service, so be sure that your subject line contains the subject of the message, not "please post"! ------------------------------ Subject: Starting a new article thread Q9: How do I start a brand-new thread of articles? A: On UNIX systems, the typical method is to use the "postnews" or "Pnews" command to the shell. These days, it is _particularly_ important to start a new thread of articles when you start a new subject, rather than just following up an existing article and changing the subject. This is because threaded newsreaders depend on article-id's to sort articles, and they can't do this properly if one doesn't start new threads properly. If you wish to create a posting to one of the moderated rec.aviation groups (.announce or .stories), most UNIX posting software will allow you to enter the post in the normal manner; that post will then be mailed to the group moderator for approval. If you are on a non-UNIX system, simply mail your article to rec-aviation-announce@uunet.uu.net or rec-aviation-stories@uunet.uu.net. ------------------------------ Subject: non-U.S. pilots flying in the U.S. Q10: I'm a non-U.S. licensed private pilot. Can I fly in the U.S.? A: In general, a pilot's license entitles you to fly aircraft of the same country of registry as your license _anywhere_ in the world. So if you can find an airplane registered in your "home" country, there's no problem. For most non-U.S. pilots, if you wish to obtain a U.S. pilot's certificate, simply present your existing pilot certificate at any FAA FSDO (acronyms below), and you will receive free of charge an equivalent U.S. certificate (private and instrument ratings only). Some FSDOs also require a current medical certificate; you will probably be able to use your "home" medical. But call the FSDO before you visit. You can then legally fly U.S.-registered aircraft. ------------------------------ Subject: hang-gliding Q11: What about hang-gliding? Ultralights? A: Galen Hekhuis (gjh@virginia.edu) maintains a hang-gliding mailing list. To post to the list, send mail to hang-gliding@virginia.edu; to get on the list, write to hang-gliding-request@virginia.edu. An ultralight mailing list is maintained by David Hempy; to find out more send mail to ultralight-flight-request@ms.uky.edu. The subject line should be "subscribe", "unsubscribe", "info", or "faq". ------------------------------ Subject: public-domain flight-planning software Q12: Where can I get a copy of public-domain flight planning software and other good stuff on the net? A: The public-domain flight-planning software and data is available on eecs.nwu.edu in pub/aviation and on lifshitz.ph.utexas.edu also in pub/aviation; data only from seas.smu.edu in the flight directory. rascal.ics.utexas.edu has a bunch of aviation related stuff in ~ftp/misc/av, including NTSB accident abstracts in in ~ftp/misc/av/safety-folder/aviation-abstracts.txt. Many folks ask about current FARs, the AIM, and NOTAMS. They are not available on the net. Sorry. Go buy a book. Machine-readable FARs are available commercially on IBM-PC format diskettes (either 3.5" or 5.25") from FlytNET at 1-214-434-1127, or send $19.95 to FlytNET, P.O. Box 610128, DFW International Airport, TX 75261. Regular updates are available. Let's support these folks by _not_ copying disks or "making the material available", please. ------------------------------ Subject: airplane ownership costs Q13: I'm considering buying an airplane. How much will it cost? A: The general consensus is that if you fly from 200 to 300 hours per year, the hourly costs for owning an airplane will be about equal to the hourly costs of renting an equivalent airplane from a local FBO. In a partnership, evaluate the total flying hours for the aircraft. This number of hours is required because there are substantial fixed costs associated with ownership: tiedown, insurance, annual inspections, taxes, and so on, which must be amortized over flight hours. Many people who own aircraft do so not to reduce the cost of flying but to improve its quality, convenience, and safety. With an owned aircraft, one can have the equipment one wants in the condition one wants, and the airplane will (well, mostly) be available when one wants. There's nothing like deciding the day before a major holiday weekend "oh, let's go flying to XYZ!" ------------------------------ Subject: cellular telephones and airplanes Q14: Can I use my cellular telephone in an airplane? A: FCC regulations effective March 9, 1992 state that: o Cellular phone use while airborne is illegal. Regulations permit cellular phone companies to cut off service of violators. o Cellular phone use on the ground is legal, as far as the FCC is concerned. Of course, FAA regulations still apply; for private flights this isn't a big deal, for airline flights the FAA is apparently making guidelines on when to allow cellular phone use. Further info is in the Federal Register, vol. 57, pages 830-831. ------------------------------ Subject: use of radios in flight Q15: Can I use a radio, either a broadcast or aviation receiver, in an aircraft? A: FAR 91.21 governs portable electronic devices. Use of a receiver is prohibited except for units which "the operator of the aircraft has determined will not cause interference with the navigation or communication system of the aircraft on which it is to be used." "(c) In the case of an aircraft operated by a holder of an air carrier operating certificate ... the determination ... shall be made by that operator of the aircraft on which the particular device is to be used. In the case of other aircraft, the determination may be made by the pilot in command or other operator of the aircraft." In plain English, this means that on an airliner, the _airline_ must allow you to operate the radio -- the captain does not have the sole authority to authorize its use. On a private aircraft, the captain does have that authority. Note that amateur (ham) radio operators are forbidden by FCC regulations from transmitting on _any_ IFR flight. ------------------------------ Q16: I have a physical disability and would like to learn to fly. How? A: Contact: Bill Blackwood, secretary, International Wheelchair Aviators, 11117 Rising Hill Way, Escondido, CA 92025. You need not be disabled or a pilot to join; membership is $15/year. There are pilots in all kinds of aircraft flying all over the world with some kind of disability, including amputees, paraplegics, etc. ------------------------------ Q17: What are the alternatives for taking an FAA written examination? A: The least expensive alternative, typically $20-30, is to find a local FBO or community college who is an FAA Designated Written Test Examiner. Call your nearest FAA FSDO for pointers. (You might luck out and get the FSDO to give you an exam for free, but this is highly unlikely.) The drawback with these methods is that it will take 3-5 weeks for you to get your results, as the tests are scored by the FAA in Oklahoma City. Two commercial vendors now offer computerized testing with results available immediately after you finish the test. Costs range from $50 to $85 for a test. To find out where your nearest testing center is, and to schedule a test, contact Drake Testing Services at 1-800-FLY-FAST or The Roach Organization (Plato Professional Testing) at 1-800-869-1100. In any case, you will need a written authorization to take most FAA tests. This may be obtained from an appropriately rated and FAA-Certificated Flight Instructor or Ground Instructor, or, if you completed a home-study course, with some difficulty you can get your local FSDO to sign you off. ------------------------------ Q18: Are slips with flaps prohibited in certain Cessnas? A: No. Some Cessna 172's have a recommendation that extended slips with full flaps be _avoided_. This is because the flaps on these aircraft are sufficiently effective to partially blanket the empennage during a full-flap slip, which may result in a gentle, but fully controllable, bobbing motion. That bobbing motion has on more than one occasion unduly alarmed a pilot on short final, resulting in a less than satisfactory outcome. Bottom line: go up to altitude and try it yourself, with a CFI aboard if you prefer. Then you won't need to worry about the recommendation. [Disclaimer: if the POH for your specific aircraft says something different, the POH takes precedence over this note.] ------------------------------ Subject: The rec.aviation glossary Pilots, Ratings, and other basic stuff ATP Airline Transport Pilot (the "highest" grade of pilot certificate) FAR Federal Aviation Regulations (U.S.) CFI Certificated Flight Instructor (see suffixes, below) COM Commercial (pilot certificate) (see suffixes, below) IFR Instrument Flight Rules (see below) PP Private Pilot PVT Private (pilot certificate) (see suffixes, below) VFR Visual Flight Rules (see below) Pilot and instructor certificates may be suffixed with certain combinations of the following: A Airplane ME Multi-Engine L Land I Instrument G Glider SE Single-Engine S Sea H Helicopter For example, the typical private pilot is "PP-ASEL" or "PVT-ASEL". Ratings are more complex than this limited explanation -- for example, Rotorcraft come in two flavors, Helicopter and Gyroplane; Lighter-than-Air aircraft come in two flavors, Free Balloon and Airship; and there are specific type ratings for aircraft over 12,500 pounds. One can spend several lifetimes accumulating ratings. A pilot who does not hold an instrument rating must fly under VFR, which specify minimum cloud clearance and visibility requirements. In some countries other than the U.S., VFR flight at night is not permitted. Pilots who fly under VFR do so by looking out the window. Flight through clouds is permitted only under IFR, which requires an instrument rating and an appropriately-equipped aircraft. Instrument-rated pilots may control the aircraft solely by reference to instruments, but if they are flying in VMC, they are expected to look out the window to avoid other aircraft. Navigation, Instruments, and Avionics ADF Automatic Direction Finder - an instrument in an airplane which displays the relative bearing to an NDB (see below) -- it essentially "points at the NDB" AI Attitude Indicator (also known as AH - Artificial Horizon) - an instrument which provides the pilot with pitch and roll information ASR Airport Surveillance Radar (usually, a type of instrument approach which provides only horizontal guidance to the pilot) CDI Course Deviation Indicator - part of a VOR navigation system, which shows how far off a desired course the aircraft is DG Directional Gyro - a compass-like device which uses a gyroscope to provide stable directional information for a pilot DME Distance Measuring Equipment EFIS Electronic Flight Instrumentation System ELT Emergency Locator Transmitter GCA Ground-Controlled (instrument) Approach (uses radar, see ASR and PAR) GPS Global Positioning System - a satellite-based navigation system, just coming up now GS Glideslope - the vertical guidance component of an ILS HSI Horizontal Situation Indicator - combines the functions of a VOR and a DG IFF Identify Friend or Foe -- see transponder ILS Instrument Landing System - a system which allows appropriately equipped aircraft to find a runway and land, when the clouds may be as low as 200 feet (or lower for special circumstances) INS Inertial Navigation System IRS Inertial Reference System LOC Localizer - the horizontal guidance component of an ILS LORAN Long RANge Navigation -- a navigation system, originally for marine use, which utilizes timing differences between multiple low-frequency transmissions to provide accurate latitude/longitude position information, at best to within 50 feet MLS Microwave Landing System - not in use yet, but it's getting warmer... Mode-A A transponder which does not give the controllers altitude information Mode-C A transponder and encoding altimeter which together give air traffic controllers altitude information Mode-S A new "flavor" of transponder which features unique identification per unit, the potential for low-speed up and down datalinks, and "selective interrogation" triggered by ground facilities NDB Non-Directional Beacon - an older type of electronic navigation aid, basically a low-power AM radio station OBS Omnibearing Selector - part of a VOR receiver system, which allows the pilot to select a course to or from a VOR station PAR Precision Approach Radar - a ground-radar based instrument approach which provides both horizontal and vertical guidance RMI Radio Magnetic Indicator - an ADF-like display with a pair of pointers which might be attached to either VOR or ADF receivers RNAV aRea Navigation - a VOR/DME based system which allows one to fly to an arbitrary point, rather than to a point under which a VOR exists Squawk A 4-digit (actually 4-octal-digit -> 12-bit) number which is set into a transponder by the pilot to identify the aircraft to air traffic controllers Transponder an airborne transmitter which responds to a ground-based interrogation signal to provide air traffic controllers with more accurate and reliable position information than would be possible with "passive" radar; a transponder may also provide air traffic control with an aircraft's altitude VOR VHF Omnidirectional Range - a common type of electronic navigation aid; the acronym refers both to the ground station and the airborne receiver. Organizations, etc. AOPA Aircraft Owners and Pilots Association, 421 Aviation Way, Frederick, MD 21701; 1-800-USA-AOPA or 1-308-695-2000; FAX 1-301-695-2375 ARTCC Air Route Traffic Control Center - a "long-distance" ATC facility, known more briefly as "Center" ASRS Aviation Safety Reporting System (voluntary NASA safety program) [write to: Aviation Safety Reporting System, NASA Ames Research Center, Moffett Field, CA 94035, or call 1-415-969-3969; Sue McCarthy should be able to send you copies of form 277 and/or a free subscription to the monthly _Callback_ newsletter] ATC Air Traffic Control CAA Civil Aviation Authority (U.K.) CAP Civil Air Patrol DOT Department of Transportation (U.S); Department of Transport (Canada) EAA Experimental Aircraft Association, PO Box 3086, Oshkosh, WI 54903 Phone 1-414-426-4800; FAX 1-414-426-4828; Membership 1-800-322-2412 FAA Federal Aviation Administration (U.S.) FAI Federation Aeronautique International FBO Fixed-Base Operator - a firm on an airport which maintains, rents, sells, and/or fuels aircraft, and may also provide flight training FSDO Flight Standards District Office - an FAA field office FSS Flight Service Station - an FAA facility which provides weather information to pilots and allows them to file flight plans GADO General Aviation District Office - an FAA field office for G.A. only IWA International Wheelchair Aviators (see Q16 above) 1-619-746-0518 LTAS The Lighter-Than-Air Society, 1800 Triplett Blvd., Akron, OH 44306 NASA National Aeronautics and Space Administration (U.S.) NOAA National Oceanic and Atmospheric Administration (U.S.) NOS National Ocean Service, part of NOAA [they print aviation charts] NTSB National Transportation Safety Board (U.S.) NWS National Weather Service (U.S.) OSH Oshkosh, WI (see next entry) Oshkosh Wisconsin is the site of the annual EAA convention, the largest gathering of aircraft in the world -- typically, over 15,000 aircraft are on site. Oshkosh '92 was July 31 through August 6. SSA Soaring Society of America, PO Box E, Hobbs, NM 88241 TAP Trade-A-Plane, PO Box 509, 410 West 4th St., Crossville, TN 38557 1-615-484-5137 USHGA United States Hang Gliding Association [POB 8300 Colo Springs CO 80933] Airspace ARSA Airport Radar Service Area ATA Airport Traffic Area CZ Control Zone MOA Military Operations Area PCA Positive Controlled Airspace (above 18,000') TCA Terminal Control Area TRSA Terminal Radar Service Area Miscellaneous A&P Airframe and Powerplant - the basic FAA aircraft maintenance rating AGL Above Ground Level - distance above the ground you're over right now AIM Airman's Information Manual Avgas Aviation gasoline (two primary grades, 80 and 100 octane) ATIS Automatic Terminal Information Service - pre-recorded airport weather BFR Biennial Flight Review - an instructional review session required of all U.S. pilots once every two years CAVU Ceiling and visibility unrestricted (clear or scattered, vis > 10 miles) DUATS Direct User Access Terminal System (on-line weather briefings) FAQ Frequently Asked Questions (this posting) FS Flight Simulator, usually Microsoft's IA Inspection Authorization - added to an A&P, allows sign-off of annuals IMC Instrument Meteorological Conditions - flying in conditions below those required for VFR flight; colloquially, "in the clouds" IMHO in my humble opinion LTA Lighter Than Air MEA Minimum Enroute Altitude (IFR) MOCA Minimum Obstacle Clearance Altitude (IFR) MP Manifold Pressure (usually refers to the gauge which is the primary indication of power output in aircraft with controllable-pitch props) MSL Mean Sea Level - altitude above the ocean Mogas Motor (automotive) gasoline NORDO No-radio NPRM Notice of Proposed Rulemaking O2 Oxygen (Aviator's Breathing Oxygen, of course!) OAT Outside Air Temperature PIC Pilot In Command POH Pilot's Operating Handbook (the manufacturer's guide to the airplane) SIC Second In Command SMOH Since Major Overhaul STOH Since Top Overhaul (cylinders, etc., but not crankshaft, etc.) STC Supplemental Type Certificate SVFR Special VFR - allows VFR flight in the vicinity of an airport in less than VFR conditions under restricted circumstances TBO Time Between (or Before) Overhaul TSO Technical Standard Order VASI Visual Approach Slope Indicator VMC Visual Meteorological Conditions - flying in conditions at least as good as the minimums required for VFR flight Frequently-Noted Places AGC Pittsburgh (Allegheny Co.) PA BED Hanscom Field, Bedford MA BMG Bloomington, IN BOS Boston MA BVY Beverly MA CGX Chicago (Meigs) IL CMH Port Columbus OH CMI Champaign-Urbana IL DCA Washington (National) DC DAY Dayton OH EFD Ellington Field, Houston TX HPN White Plains NY HWD Hayward CA IAD Dulles International, Washington DC IAH Houston (Intercontinental) TX IPT Williamsport PA LAX Los Angeles CA LGB Long Beach CA MVY Martha's Vineyard MA OAK Oakland CA ORD Orchard Field, a.k.a O'Hare, Chicago IL PAO Palo Alto CA RHV Reid-Hillview Intergalactic, San Jose CA SFO San Francisco CA SJC San Jose CA SMO Santa Monica CA SNA Santa Ana (Orange County) CA STL St. Louis (Lambert) MO TEB Teterboro NJ VNY Van Nuys CA ------------------------------ Subject: The rec.aviation guide to proper spelling Right Wrong ----- ----- Beech[craft] Beach[craft] Comanche Commanche definitely definately flare (part of a good landing) flair (with panache) gauge guage hangar (a place for airplanes) hanger (a place for clothes) | hazard hazzard Hobbs (an hour meter) Hobb's, hobbs, Hobbes (as in Calvin and) propeller propellor turbulence turbulance yoke (aircraft control) yolk (yellow part of an egg) And some words which are frequently confused: it's (contraction for "it is") its (possessive, belonging to it) loose (not fully attached) lose (to misplace or forget) you're (you are) your (indicating possession) ------------------------------ Subject: Copyright Copyright (C) 1990, 1991, 1992 Geoffrey G. Peck, all rights reserved. You may redistribute this information freely as long as it is distributed in its entirety, with this copyright notice included. You may also not charge, either directly or indirectly, for this information, nor may you include this information in a compendium for which a charge of any sort is made.