Krash4726

I have a .60 size Top Flite Corsair Gold Series Kit. The kit calls for Robart #615 90 degree retracts. Robart shows the #615 as 100 degree retracts. I have a set of Corsair 100 degree electric retracts. Can anyone tell me if I can use the 100 degree retracts? Thanks.

LDM

My Feedback: (15)

Yes I am pretty sure the 100 degree is the forward rake of the retract , you should be fine

da Rock

In fact, those 100 degrees will make the model much less prone to nose over.

Observe where the wheels are in relationship to the wing LE on tail draggers. They're usually at or in front of the LE when the fuselage is parallel to the ground. Actually they're usually 15-20 degrees forward when measured from the actual CG location, but that's not readily visible. Most Corsairs (Hellcats and Warhawks) have retracts placed so they rotate an inch or two back from the LE, and if that's combined with a 90 extension, the wheels wind up an inch or two back from where they should be for safe ground handling.

You've got a Gold 60 right? Cutting the struts down to fit that wing is going to be fun.

da Rock

Which is it? 90 degrees or 100 degrees?

It's both. The gear retracts/extends 100 degrees while the wheel/strut rotates 90 degrees.

The reason Robart mentions the 100 degrees is because it's a huge sales feature. Retracts for Corsair, Hellcat, and Warhawk models benefit greatly in ground handling when the wheels are farther forward when down. It's taken Robart and the model industry decades to finally realize that. But describing the things is still confusing.