03-08-2009, 10:53 PM
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Master Modeler
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Join Date: Dec 2005
Location: Washington State
Posts: 654
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New-Old Design: Angel Express Mk III & IV
I finally got around to pulling this design out of the "Abby Normal" Rocksim folder and give it a needed workover with R9. The original file was unstable in R8. After reworking this design I realized that in order for an single 18mm to work it had to go on a severe diet. After conciderable wieght and drag loss, sorry Jay those Ping Pong Balls had to go, I have an design that still look somewhat like the original and yet preforms well on an single 18mm motor and I call it the Angel Express Mk III.
In order to keep this design in its more original form I needed more power and used an dual 18mm motor mount. Angel Express Mk IV also needed more length and more aft drag to be stable with the dual 18mm motors. Niether design has been built yet.
Enjoy and Thanks Again, JP
James Pierson
NAR# 77907
Angel Express Mk III (18mm)
Launch guide length: 36.0000 In
MOTOR.................MAX. ALTITUDE...........DEP. VELOCITY
A8-3..................150.36647 Ft.............15.7435 ft/s
B4-4..................355.03281 Ft.............13.4529 ft/s
B6-4..................361.15814 Ft..............9.6000 ft/s
C6-5..................771.48622 Ft.............14.7453 ft/s
Angel Express Mk IV Dual (18mm)
Launch guide length: 48.0000 In
MOTOR.................MAX. ALTITUDE...........DEP. VELOCITY
2-A8-3..................162.89862 Ft.............11.7067 ft
2-B4-4..................380.62336 Ft...............9.4061 ft/s
2-B6-4..................386.00394 Ft..............6.0777 ft/s
2-C6-5..................811.46982 Ft.............12.5614 ft/s
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