Tuesday, September 8, 2026

Estes Cosmic Interceptor Build, Part 22, Root Edge Fit

The supplied fin marking guide fit!

The root edge contact positions (two on each of the main wing fins) had the filler/primer scraped off for better adhesion. 


A dry fit of the wings showed the lower root edge not making complete contact. The upper root edge was good.

The root edge was sanded with 320 grit on a block until the fin made full contact down the fin / body tube joint.

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