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README.51H
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1993-08-28
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P51H_WSG.ZIP
North American P-51H Mustang post World War II fighter for use with FLIGHT SIMULATOR
Created with "Aircraft & Adventure Factory" by Mallard Software
by Bill Grabowski CIS 74027,413
A&SD = Microsoft's Aircraft & Scenery Designer
AAF = Aircraft and Adventure Factory
SEE04 = Scenery Enhancement Editor 4
FS4 = Microsoft Flight Simulator 4.0
CIS = Compuserve
This ZIP'ed file includes the following files:
P51H_WSG the flyable aircraft (must have in FS dir)
P51H_WSG.sim the aircraft flight data (must have in FS dir)
ref_p51h.sim the flight data created with A&SD that AAF has
to have in order to create P51H_WSG.sim
P51H_WSG.afx the "crated" file of parts, components, and
assemblies AAF uncrates and uses to create the
aircraft should you desire to see how I put
this together
readme.51H This file.
I highly recommend that you use the "P-51.voc" sound file by Tom Cain in the
CIS Flight Sim Forum libraries. If you have a sound editor, I recommend
decreasing the amplitude by about 50-75%.
FEATURES for the functioning P51H_WSG file include:
1. Retractable landing gear
2. Operating flaps
3. Four bladed propeller appears when engine cut by selecting Lean
from magneto settings. (type 'M' then '0')
Fuel provided is 255 gallons.
FLAPS SPEED(mph)
Stall Wheels down 40 85
Stall Wheels up, carb heat on 0 100
TAKEOFF
NORMAL SHORT FIELD (minimum run)
Flaps UP 15 degrees
Lift off 110 mph 100 mph
Wheels up as soon as airborne
Climb out 170 mph 100 mph
Flaps up after 200' above ground level
NOTE: Remember, on takeoff, keep the tail on the ground as long as
possible to allow tail wheel steering, cuz at low speeds, the
rudder can't control the torque from the prop, and the plane
will vear right on you. (In real plane, this is what happens)
LANDING
AIRSPEED(mph) FLAPS(degrees) LANDING GEAR
DOWNWIND <170 0 down
BASE LEG 15
FINAL APPROACH <165 Full (gradual)
(make sure flaps all down by 400' AGL)
OVER EDGE FIELD 120
OVER THRESHOLD 100
TOUCHDOWN 90
ROLLOUT AFTER LANDING
Brakes on
Flaps up
Slow to exit active runway
Taxi to parking using 25% power, brakes and rudder control
I recommend use of the keyboard trim controls for all aspects of flight.
This plane actually flies a little nicer than P51D_WSG. It's a little more
stable in pitch and yaw and has a little better ground handling.
HISTORY
The P51H was created as a lightweight Mustang and a more "complete"
and integrated airplane than the P51D, which was actually a hybrid of a
P51A (designed for the Allison engine) and the Rolls-Royce Merlin.
Three experimental Mustangs were created, the XP-51F, XP-51G, and
XP-51J. The P51H was derived from the XP-51F. The 'H' continued to use the
Merlin engine. An high powered Allison engine was later used on the P-82
Twin Mustang.
Comparison of the 'H' with the 'D' model:
1. 1300 pounds lighter
2. Much thinner wing cross-section
3. Redesigned bubble canopy and windshield
4. Much smaller landing gear strut and wheels
5. 13" longer fuselage for greater stability
6. A taller vertical fin
7. A 4 blade cuffless Aeroproducts prop
8. Smaller chin scoop
9. Larger, deeper radiator housing
10. Straight leading edge to wingroot due to smaller tires
The performance increase over the 'D' was substantial, with a top speed
of 466mph compared to 437 and a climb rate of 4000fpm.
Although 370 'H' models were delivered before the end of WWII, none
ever saw combat, being phased out of active inventory by the Korean War. The
'H' did see much service with Air National Guard and Reserve units. It was not
used in the Korean War due to an inadequate supply of spare parts.
CONSTRUCTION
The construction of P51H_WSG is of note to those who have AAF. It is similar
to P51D_WSG except for the solid canopy and windshield and the subtle outline
changes between the P51H and P51D.
Only one structure is used: the spinner.
The fuselage is made by use of formed panels to achieve the correct
shape, not assemblies, since the bulkheads provided with AAF are too limited.
Since the Mustang has a flat slab side for a fuselage, it was a simple matter
to form it from a vertical surface. It would have been better had AAF allowed
you to create your own bulkheads.
Notice the creation of the Star and Bar national insignia. The rounded
disk and the star are one piece. The final national insignia is a component.
The propeller blades and prop circle have different color projections,
"nose left" and "nose right". That leaves the spinner to use the "nose" color.
Also notice that prop blades are "twisted".
The solid canopy and windshield are actually very simple to create in
3D. Just draw the outline in 2 orthogonal projections (side and top views)
using as few points as possible. Use these as a template to create the actual
canopy panels on one side by just "connecting the dots".
HINTS for construction to keep overhead down and the airplane simple:
1. Don't overuse structures.
2. Use lines whenever possible instead of solid fills (vis. windshield
frames, bar for national insignia, gear struts).
3. Don't use the insignia feature unless you absolutely have to.
4. Use components whenever possible.
5. Keep cutting points to a minimum where a part still looks right.
6. Merge abutting panels and points so that their points EXACTLY
coincide, even if it means writing down the coordinates from one
part to transcribe to another, or use the abutting part as a start
for a new part by deleting all points that don't abutt.
7. Measure key points from an accurate drawing.
8. Don't stop revising until you are absolutely satisfied.
9. Use TOMROT.EXE from CIS library to rotate, translate, change size,
and make circles. This should have been included in AAF.
I don't know if any of the planes created with AAF for FS4 will be able
to be used in FS5, but I'd bet this one would be a good candidate.
This file and all attached files may be used with FS4, AAF, and A&SD
for play and learning. This plane is not to be changed and reassembled
and released to the public domain or sold for profit without the explicit
permission of the author.
REFERENCES:
Davis, Larry, "P-51 Mustang in Action", Squadron/Signal Publications,
Carrollton, TX, 1981.
Ethell, Jeffrey, "Mustang: A Documentary History of the P-51", Jane's,
London, New York, Sydney, 1981. (There is a good discussion
of the differences between the P-51D and H in this book)