The Estes Alpha is a classic sport model that is extremely popular. Why not upsize it from a BT-50 to a 3" body tube with a 29mm motor mount? The parts in this upgrade kit added to an Estes Der Big Red Max kit (not included) will allow you to do this!
- 8.5" long 3"diameter body tube (one)
- 3" diameter body tube coupler (one)
- 1/8" laser cut plywood centering rings (three)
- 1/8" laser cut plywood fins(three)
- replacing the Der Big Red Max fins with the laser cut plywood fins
- replacing the Der Big Red Max card stock centering rings with the plywood centering rings
- lengthening the body tube by adding the tube coupler and 8.5" body tube
- replacing the Der Big Red Max nose cone with a Doorknob nose cone
- Vinyl Decals are available from Stickershock23.com (not included)
This upgrade was designed by world class model builder James Duffy, whose model you see in the photo..