This is A BT-20 Based WAC Corporal Fin can. This accurately reflects the shape of the fin cross section of the actual vehicle, a lenticular or bi-convex cross section, as well as the tapered tail cone. This 13mm engine version is based on a BT-20 airframe and of a friction fit engine mount design to preserve the scale quality for display. It will fit a BT-5 engine mount tube easily into place. It will fly wonderfully on ¼ AT to A-10T mini brute power! In addition, this material is flexible nylon, very tough for those hard rocky terrain landings. The material option includes a polished version, which I highly recommend. The unpolished is good too, as it makes paint adhesion even better than the already easy prime and paint finish. The unpolished nylon has a 'sand dollar' like feel that could be sanded smooth with a bit of effort should you wish. I recommend grit 220 to start. Please use this product with the understanding it is the end-users responsibility for overall safety and stability of a scratch built rocket design. This is not a replacement part or for use as a modification of any manufactured rocket kit. This is for advanced modelers with no instruction provided for engine mount assembly details, so please use at your own discretion.

This is A BT-50 Based WAC Corporal Fin can. This accurately reflects the shape of the fin cross section of the actual vehicle, a lenticular or bi-convex cross section, as well as the tapered tail cone. This 18mm engine version is based on a BT-50 airframe and of a friction fit engine mount design to preserve the scale quality for display. It will fit a BT-20 engine mount tube easily into place. It will fly wonderfully on 1/2A to C-6 power! In addition, this material is flexible nylon, very tough for those hard rocky terrain landings. The material option includes a polished version, which I highly recommend. The unpolished is good too, as it makes paint adhesion even better than the already easy prime and paint finish. The unpolished nylon has a 'sand dollar' like feel that could be sanded smooth with a bit of effort should you wish. I recommend grit 220 to start. Please use this product with the understanding it is the end-users responsibility for overall safety and stability of a scratch built rocket design. This is not a replacement part or for use as a modification of any manufactured rocket kit. This is for advanced modelers with no instruction provided for engine mount assembly details, so please use at your own discretion.

Use an 1/8 dowel ( I use bamboo kabob skewer stick, its stronger) to slide through the holes for a loop anchor attachment for your recovery system.

This is to go with the V-2 fin unit for BT-55. Use an 1/8 dowel ( I use bamboo skewer stick, its stronger) to slide through the holes for a loop anchor attachment for your recovery system.

OK folks, this is really cool fin unit. It is accurate to almost every aspect of the aerodynamic shape of the real thing. Down to the accurate fin size, thickness and the large fillets. It even shows the exhaust ports near the end of the tail, as well as the control fin gear housing blisters! What is cool also about this model is that it is completely hollow in including the fins. With its thick aspect the fins had to be hollow to take advantage of a huge cost saving as well as unneeded mass. It is based on BT-55 airframe reminiscent of K-22 V-2 by Estes.

Just like my M31 Honset John Fin can offering I decided to make a true to scale M50 round tailcone to the same specifications. The only difference is this is a mini-brute powered 13mm version to match with the Estes 'Mini Honest John' kit that shares the proper scale version nose cone.