SuperSTOL Flap Springs?

For general discussion of the Just Aircraft family of aircraft.
Includes: Highlander, Escapade, Summit and SuperSTOL.

Moderator: scubarider2

SuperSTOL Flap Springs?

Postby Clark in AZ » Sat Nov 21, 2020 7:31 pm

What is the current wisdom on cutting the SuperSTOL flap spring? I've read many posts about this and some leave it as is, others cut anywhere from 1/2" to 1 1/2" off. Here's a couple of pics of my springs...
Flap Spring 1.jpg

Flap Spring 2.jpg


My overall length is just over 8.75" and the coils only measure just over 7.5".

So, how are you measuring the amount to cut off? Overall width, just the coils, a specific number of coils, or some other way?

How are you cutting it?

How are you bending the end once cut?

Has anyone sourced a replacement spring of an appropriate size and strength?

For those that have cut the stock spring, would you do anything different if you had to do it over?

Thanks!
Clark
Building SuperSTOL Kit 512
Cave Creek, AZ
Clark in AZ
Veteran Member
 
Posts: 299
Joined: Wed Oct 07, 2015 11:40 am
Location: Cave Creek, AZ

Re: SuperSTOL Flap Springs?

Postby BDA » Sun Nov 22, 2020 10:33 pm

I cut 1.25” off mine, its not enough, will cut again.

I measured 1.25 on the coils and made a mark, then abrasive cuttoff wheel to cut the coil.

Then pliers to make new loop.

Dont be gentle.
SuperStol XL Alaskan With Titan 340
N331AK. Shawn Taplin
Wing extensions,Symetrical Airfoil tail ribs (NACA 21)
Mods in progress: Heavier struts
Goal: 15mph no wind
User avatar
BDA
Veteran Member
 
Posts: 528
Joined: Mon Aug 22, 2016 11:25 am
Location: Kenai Alaska

Re: SuperSTOL Flap Springs?

Postby Clark in AZ » Sun Nov 22, 2020 10:50 pm

BDA wrote:I cut 1.25” off mine, its not enough, will cut again.

I measured 1.25 on the coils and made a mark, then abrasive cuttoff wheel to cut the coil.

Then pliers to make new loop.

Dont be gentle.


Thanks! I'm leaning to 1.5" on the coils. I know it will be a PITA to do but it should make a big difference.

Clark
Building SuperSTOL Kit 512
Cave Creek, AZ
Clark in AZ
Veteran Member
 
Posts: 299
Joined: Wed Oct 07, 2015 11:40 am
Location: Cave Creek, AZ


Return to Just Aircraft