Hamish Cleghorn

Hamish Cleghorn

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Hamish Cleghorn
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Cardboard Fin Alignment Jig. Simple laser-cut cardboard fin alignment jig fits the common starter type rockets that are 24mm in diameter (BT-50 size tubes) and which have three 1/8-inch (3mm) thick fins. It can also be used with thinner fin material. Works great on kits like the Avion or the Estes Alpha.

Inexpensive Fin Alignment Jig For Straighter Fins