Terrapin Sounding Rocket NAR Plan

[BigRiJoe]

Peter Always's Rockets of the World has an entry for the Terrapin sounding rocket. He mentions an NAR plan by G. Harry Stine (Plan #110); anyone got a copy they could scan for me?

 

[rocketguy101]

google is your friend...
https://plans.rocketshoppe.com/narts/TERRAPIN_110.pdf

 

[jhill9693]

Based on ROTW 3rd edition and some guesswork.




Thoughts, corrections, or other feedback are welcome. This will likely push gap staging to the limit, so I went with 24mm motors to maximize the amount of blow-through heat. Uses ST-10 and BT-50H tubes and G10 fiberglass fins for near-perfect scale profile. If I can find better scale data, I will refine if needed.

 

[PeterAlway]

Since "Rockets of the World," I have found better Terrapin data, and have updated the drawing with a bit more detail and accuracy. I hope this is useful.