Saturday, February 4, 2017

Estes Sprint XL #7224 Build, Part 4, Engine Mount & Kevlar


Look close at the ends of the tail cone. There is a slightly raised molding lip.
I used my sanding block with 220 grit to straighten out the sides.







The engine block sits inside the end of the engine mount tube. Use a D engine casing to set the block so it won't be glued in at an angle.




The instructions say to glue the upper centering ring even with the top of the engine mount tube.

TIP: For a stronger mount the ring was glued about 1/8" down from the top. This way you could put a glue fillet on both sides.




A 150 lb. Kevlar line was tied below the upper ring.

The mount is set beside the main body tube to get the right length of line before the mount is glued in.. You'll want the Kevlar tie loop below the top of the body tube to prevent a zipper tear.

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