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1996-09-01
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<BeginInput>
<date> September 1, 1996
<FirstName> Benjamin W.
<LastName> Hartley
<Company>
<Address1> 103 Forest Park Estates
<Address2>
<City> Jaffrey
<State/Province> NH
<Zip/Postal> 03452
<Country> USA
<Telephone> 603-532-6248
<FAX>
<BBS>
<CIS> 70033,2612
<OtherContact> INTERNET: 70033.2612@compuserve.com
<Program> QBALL Ballistics
<Program Name> QBALL
<Version> v 3.30
<OrigReleaseDate> 10/01/91
<CurReleaseDate> 09/01/96
<Program(ZIP1)> QBALL330
<Environment> DOS
<Classification> Sports, Firearms, Shooting
<MemoryRequired> 640
<HardDiskRequired> No
<ShortDesc> QBALL EXTERIOR BALLISTICS v3.30 [ASP]-
<MediumDescStart>
QBALL EXTERIOR BALLISTICS v3.20 [ASP]-
[DOS program!] Display/save/recall/print (to multiple
ports) ballistics data. Find energy, velocity, trajec-
tory data, flight time, wind deflection. VGA/EGA/CGA
display/print trajectories. Find ballistic coeffi-
cient, free recoil, sec'l density, point-blank range,
probable zero, slant fire data, wind defl'n, MV from
drop or 1 velocity. Bullet lookup, utilities, on disk
manual. [ Reg: $25 ppd US/CAN/MEX; $32.50 elsewhere. ]
<MediumDescEnd>
<LongDescStart>
QBALL EXTERIOR BALLISTICS v3.20 [ASP]-
QBALL is an MS/PC-DOS based, menu-driven application
for the rapid computation of exterior ballistics data
for small arms. Data tables showing remaining velocity
and energy, trajectory data, i.e., projectile height
above or below the line of sight, wind deflections for
"standard" or user-defined crosswinds, and times of
flight may be displayed, saved to disk using user-
specified or default filenames, and printed out as
hardcopy. Data I/O in all English units or all Metric
units, hotkey toggle English/Metric. A 505-entry bullet
lookup data file and its index files are included.
QBALL automatically determines whether a graphics
card/monitor is installed. Up to 15 sets of trajectory
data may be graphically displayed on a CGA, EGA or VGA
(recommended) monitor; an included utility configures
QBALL to output graphics as hardcopy. Other routines
allow calculation of ballistic coefficients, muzzle
velocity from measured bullet drop or a single down-
range velocity, point-blank range, probable zero given
a range and height, corrections for slant (up or down-
hill) fire, sectional density, and gun free recoil.
QBALL's display, and several of its functions may be
changed using the built-in configuration routines.
Screen colors may be set as desired by the user. The
user may fine-tune QBALL to use data specific to a
particular weapon/cartridge, e.g., its name, and the
height of the weapon's sights above the bore. Metro
(weather) conditions may be specified to allow for
variations from standard. QBALL may be configured to
use multiple parallel ports if installed. Printer
prompts may be suppressed, should no printer be
present; "alert" beeps, chirps, and squeaks may be
toggled on or off. QBALL's starting values may be
modified and saved for later use.
Limited on-line, context-sensitive help is included.
Error trapping prevents data input which is outside
QBALL's ability to use effectively. Upon incorrect or
out-of-range data entry, an appropriate error message
is displayed, which is in itself additional on-line
(and context-sensitive) help. A built-in calculator to
convert unit system measurements is included.
The on-disk user's manual includes a "tutorial,"
several schematic illustrations of screen displays,
many examples, a glossary, a bibliography, and sec-
tions on data comparison and analysis. As distributed,
the manual is set up to print all the odd-numbered
pages on one side of a "deck" of fanfold paper; the
even-numbered pages are then printed on the reverse
side. (This feature saves paper: there are 100 pages
in the manual, requiring but 50 sheets for their
printing.) An included utility, ONEDOC.EXE, combines
the two user's manual files for those preferring a
consolidated document file.
Other utilties configure QBALL to print graphics,
and read/print range tables which have been saved to
disk. Registered Users also receive a custom utility
to manipulate the bullet lookup data file.
QBALL was written with the "least common
denominator" in mind. It is fully functional on 8088
or similarly-equipped computers, does not require a
hard disk to run, but MUST have a 5 1/4" HD or a 3
1/2" DD/HD floppy drive and a graphics-capable
monitor. QBALL has been tested and found to function
on several different machines, including an EGA-
equipped AT clone, and an LCD/CGA-equipped laptop with
a V20 CPU.
[ Reg: $25 ppd US/CAN/MEX; $32.50 elsewhere. ]
<LongDescEnd>