stevethecontractor
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- Feb 1, 2013
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Prepping my 12ft modified Pterodactyl for a cluster launch. Weighs 20lbs
I have the ability to hold 3 motors. one 54mm and two 38mm.
I want to launch on a large 54mm K and then air start a pair of I motors.
I have flown many 2 stage rockets and I have always set my air start around the burn out time of the booster engine plus 1/2 second.
In this case I am wondering if I should set the air start about 3+ seconds after main engine cutoff as the rocket will still be climbing. Or should I time it for right when the main engine burns out?
Also, since I am air starting two engines, would you suggest I use Cesaroni reloads since I can use electric matches to ignite instead of relying on a dipped aerotech ignitor or it does not really matter?
Lastly,
Moon burner or warps for my airstart motors? or just stay with a standard?
Thanks
Steve
I have the ability to hold 3 motors. one 54mm and two 38mm.
I want to launch on a large 54mm K and then air start a pair of I motors.
I have flown many 2 stage rockets and I have always set my air start around the burn out time of the booster engine plus 1/2 second.
In this case I am wondering if I should set the air start about 3+ seconds after main engine cutoff as the rocket will still be climbing. Or should I time it for right when the main engine burns out?
Also, since I am air starting two engines, would you suggest I use Cesaroni reloads since I can use electric matches to ignite instead of relying on a dipped aerotech ignitor or it does not really matter?
Lastly,
Moon burner or warps for my airstart motors? or just stay with a standard?
Thanks
Steve