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Speed,Combat,Scale,Racing => Speed Talk => Topic started by: Dave Rigotti on March 19, 2021, 03:16:55 PM

Title: Fox Stunt Speed AND Perky speed line wrapping question......
Post by: Dave Rigotti on March 19, 2021, 03:16:55 PM

Rules state .014 solids at 52' 6" centerline model to centerline handle for Perky.
Using Figure #1 loop construction from AMA rule book page #4 my question is:

What "A" dimension do I use?

Same question for Fox stunt Speed using .016 by 60'.

Title: Re: Fox Stunt Speed AND Perky speed line wrapping question......
Post by: Paul Smith on March 19, 2021, 04:42:20 PM

Perky uses .15 engines and is thus an "A" event.  Dimension A is therefore 1".
Fox 35 Stunt is a class C event so dimension A is 1-1/4".

Dimension A is the length of lines wrapped by copper wire at the the termination. 

These rules were made for all-out high performance planes that can go 200 MPH.  Perky & Fox only go half of that, so you're plenty safe enough.

Title: Re: Fox Stunt Speed AND Perky speed line wrapping question......
Post by: Dave Rigotti on March 19, 2021, 05:00:59 PM

Thanks Paul!

Title: Re: Fox Stunt Speed AND Perky speed line wrapping question......
Post by: Fred Cronenwett on April 28, 2021, 07:44:46 PM

This is the video I did on how to wrap solid or braided lines. I never have measured the "A" dimension on my lines

https://www.youtube.com/watch?v=nk-7_3i2Kos&t=226s