Looks pretty cool. It doesnt look to heavy but those F15's add a bit of weight. I would not be surprised though if you find that the 3 F's will work. For sure with the D boosters. I would opt for the composite first stage over the D's . Just my opinion to save propellant weight and ease of starting 1 VS 3 motors.
Great build and looking for launch pics and info.
FYI, 3 Estes F15 motors have 180g of propellant, making it high power, requiring certification and FAA waiver. Using 3 E16s would not, at 120g total.
I haven't staged composite engines, but wouldn't he need electronics to start all of the stages? And zero delay booster engines? Just checked thrustcurve and the F-15 is SU composite.
I am going to use estes bp f-15s.....so I need a cert and waver? for black powder?.......
Very nice rocket! I'd love to get my hands on a Centuri Arrow 300 and an upscale is a cool idea.
What kind of wood are you using for those fins? I noticed in the pictures that the grain is running parallel to the body tube rather than to the leading edge. If they are balsa, the are about guaranteed to pop along the grain and break off with very little stress. Basswood is OK that way, though not the best arrangement, plywood is a different story entirely.
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