Qualman Rocketry Fin Alignment Guides for 1/8 fins

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  • Qualman Rocketry Estes BT sized fin alignment guides for 1/8 inch fins
  • Qualman Rocketry fin alignment guide being used on a model rocket
  • Qualman Rocketry rube marking guide

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One of the most challenging aspects of building precise model rockets is to get the fins aligned correctly. The fin alignment guides from Qualman Rocketry solve this problem by precisely holding the fins against the body tube as the glue dries. These laser cut guides are sized for 1/8 thick fins and can hold up to 12 fins at once. Includes guides for BT5, BT20, BT50, BT55, BT60, BT70 & BT80 body tubes along with a tube marking guide and a T-mount guide.

The fin alignment guide are marked for easy placement of 1, 2, 3, 4, 6 or 12 fins. Each marking point on the guide has a small indent, giving positive contact with your pencil to get very, accurately, placed marks on your body tubes. Special features include color coded ring for easy identification and outer slots for special fin guide needs.

These fin alignment guides for 1/8 inch thick fins are compatible with many different model rocket kits including the DynaStar Grappler, DynaStar Rip-Roar, DynaStar Stonebreaker and Estes Big Bertha.


  • Fin guide slot width: 1/8"
  • Fin guides for body tube sizes: BT5 (0.541"), BT20 (0.736"), BT50 (0.976"), BT55 (1.325"), BT60 (1.637"), BT70 (2.217"), BT80 (2.600")
  • Material: Laser-cut rigid cardstock

Includes:  7 - fin alignment guides, 1 - T-mount guide, 1 - tube marking guide and instructions.

Note:  The tube marking guide requires assembly with glue.

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