Tuesday, September 14, 2010

MPC Martian Patrol Build Part 9 Shock Cord Mount



Here's another MPC feature, simple but effective.

Maybe this was their version of Estes "tea bag" shock cord mount. It's nothing more than a piece of card stock around 7/8 " wide x 1 1/4" long .

3 holes were pre-punched and the round elastic shock cord is knotted and laced through it. If the cord was laced correctly, it would glue in place and be very flat against the inside body tube wall. Starlight Rocketry uses this type of mount today.


These remind me of the old Centuri sticky back shock cord fasteners. The exposed silver side was flame retardant and had reinforcement strands running through it.

The only disadvantage to the Centuri mount was they could come loose after a few months. You always had to check them before launch and press them back in place if needed.
It may have "fastened easily" but it wasn't permanent!


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