Flight Log - 2015-08-29 - Rick Barnes's Astron Ranger BT80

I built this upscale Astron Ranger as a fraternal twin to my similarly upscaled Big Bertha.  I tried to keep this as true to the Ranger as possible, though the BT80 sized elliptical cone isn't quite long enough.  Still, it separates in the middle (with dual-chute recovery) with the same proportions as the original, and has a triple 24mm cluster to lift it.  Rocksim tells me that 3x E12-8 motors will lift it nearly 1800 feet, but it'll be easier to track on 3x C11-5s, at a little under 500'.  The design uses a baffle to protect the chutes, a balsa version of the -80BB cone and 1/8" papered balsa fins with epoxy fillets.  Finished in the late Damon-style yellow/black stripe with red cone and a white fin graphics, thanks to Excelsior decals.

Flight Date: 2015-08-29
Rocket Name: Astron Ranger BT80
Flyer's Name: Rick Barnes
Motors: 3xD12-7
Launch Site: Torrey Farm, Potter, NY
Actual Altitude: 800.00 Feet

Good flight.  All three lit, and both the upper and lower portions landed next to each other in the carrots.

StageMotor(s)
13 x Estes D12-7

 

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