James Pierson
04-04-2009, 07:43 PM
Here is the "extended version" of the Allegis with an 18mm motor mount called the
Allegis II. I did my best to simulate the Semroc BC-734 which is used on this
design. All other parts are Semroc parts as usual.
For a while now I have noticed that by adding fins forward of the CG it really
brings the Margin down in Rocksim. I just hope this is an accurate calculation as I
would like to use forward fins more often in design but tend to avoid them for
reasons above.
Enjoy and Thanks Again, JP
James Pierson
NAR# 77907
Allegis II (18mm)
Launch guide length: 36.0000 In
MOTOR.................MAX. ALTITUDE...........DEP. VELOCITY
B4-4...................323.16601 Ft.............16.1141 ft/s
B6-4...................329.96391 Ft.............11.0293 ft/s
C6-5...................724.06824 Ft.............15.2788 ft/s
.
Allegis II. I did my best to simulate the Semroc BC-734 which is used on this
design. All other parts are Semroc parts as usual.
For a while now I have noticed that by adding fins forward of the CG it really
brings the Margin down in Rocksim. I just hope this is an accurate calculation as I
would like to use forward fins more often in design but tend to avoid them for
reasons above.
Enjoy and Thanks Again, JP
James Pierson
NAR# 77907
Allegis II (18mm)
Launch guide length: 36.0000 In
MOTOR.................MAX. ALTITUDE...........DEP. VELOCITY
B4-4...................323.16601 Ft.............16.1141 ft/s
B6-4...................329.96391 Ft.............11.0293 ft/s
C6-5...................724.06824 Ft.............15.2788 ft/s
.