High Power Model Rocketry

FS-Onyx

FS-Onyx - Main image
$7.61 $10.72 In stock

The FS-Onyx fin set from LOC Precision is designed for builders working with a 3.10-inch airframe. This package includes three fins, each crafted at a 1/8-inch thickness for a balanced combination of strength and weight.

  • Includes a quantity of three fins for a complete set.
  • Fits LOC 3.10-inch diameter airframes.
  • Fin tabs are sized to reach a 29mm motor tube, aiding in secure installation.
  • Suitable for high-power rocketry projects requiring reliable fin alignment.
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Kevin H. ★★★★★

The 1/8-inch thickness feels solid without adding much weight, which is exactly what I wanted for my 3.10-inch build. Edges were clean right out of the package, so barely any sanding needed before mounting. Fit my airframe like they were made for it.

Eva O. ★★★★★

Three fins for a 3.10-inch airframe, and they drop right into the slots I cut — no sanding to make them fit. The bevels came out even on all three, which saved me a lot of cleanup time.

Violet Y. ★★★★★

The 1/8-inch thickness feels sturdy without adding too much weight to my 3.10-inch airframe build. I've already test-fitted all three fins and they line up cleanly with no sanding needed.