High Power Model Rocketry

PK-72 Expediter Fin Set

PK-72 Expediter Fin Set - Main image
$13.42 $20.33 In stock

This PK-72 Expediter Fin Set from LOC Precision is a direct replacement or upgrade fin set designed for the Expediter rocket kit with a 54mm motor mount tube. Each set includes three fins made from durable 1/8-inch material, providing the stability and performance needed for your high-power rocketry projects.

  • Set of three fins for the PK-72 Expediter rocket kit
  • Fits 54mm motor mount tubes
  • Constructed from 1/8-inch material for strength and durability
  • Compatible with LOC Precision Expediter kits
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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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Returning an item

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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 (5.0 / 5 · 5 reviews)

Emily W. ★★★★★

The cut edges are clean and uniform, so they took glue without any fuss. I swapped these onto my Expediter build and the 54mm mount alignment was spot-on, saving me from any sanding headaches.

Ruby ★★★★★

These fins fit perfectly onto the 54mm motor mount tube with zero sanding required on the root edge. The 1/8" plywood feels sturdy enough to handle high-power launches without any flex.

Nicholas ★★★★★

Cutting these fins to the correct bevel was straightforward, and they fit perfectly into the motor mount slots with minimal sanding. The 1/8-inch plywood feels sturdy enough to handle high-power flights without flexing.