Friday, February 3, 2017
Estes Sprint XL #7224 Build, Part 3, Tail Cone Fit
First up you'll have to widen the low end hole.
200 grit was wrapped around an 18mm casing. Constantly check the fit of the BT-50 engine mount tube.
The engine hook slot was widened with a small diamond coated file.
Even though the slot was wide enough at the back, the hook was still getting caught up inside. The interior walls had to be hit with a knife.
Here's the final fit with the mount slid in place. The BT-50 tube is flush with the end of the tail cone.
I did remove the finger tab and flipped the hook over.
The fins don't sweep back on this one so the engine hook seems longer than it should be.