This is an upscale t' BT-55 o' t' classic Alpha from t' 1970's, but t' fins are mounted backwards.... Arrr! thus t' name "Ahpla"...  Alpha spelled backwards.

It also utilizes through-the-wall basswood plywood fins and is powered by a 24mm motor.

Additional I designed a rin' finned booster for this rocket. Ya scallywag! T' booster has holes in it t' induce t' "Magnus Effect".  T' idea is t' make t' booster spin, and that spin creates lift that will slow t' booster down prior t' ground hit.

T' nose cone is made from pine, custom turned on me wood lathe.

I made t' fins from (3) ply's o' 1/32" basswood, me hearties, glued with Gorilla wood glue, and then clamped.

Decals are from Tango Papa.  They were kind enough t' upscale t' standard Alpha decals just for this project.

Stability was calculated by Open Rocket, ya bilge rat, and verified via swin' tests as a single stage, matey, and with t' booster.