Scale F7F Tigercat 1/4 scale

[WMcNabb]

servo finally installed properly for this gear box operated ailerons

Outstanding!!

 

[Forgues-Research]

I decided to change the bevel gears for smaller and much lighter

 

[BalsaDust]

I like it.

 

[dhal22]

Very nice.

 

[Snoopy1]

Nice job looks like is going to work well.
Just looking at it the pinion and bevel gear looks like it could be around three to one. Will that give enough rotation on the flaps to get what you need. Normally a servo is 120 degree rotation and at 40 degrees flap rotation will that be enough.

 

[TonyHallo]

That first gear was the prototype.

 

[Forgues-Research]

Nice job looks like is going to work well.
Just looking at it the pinion and bevel gear looks like it could be around three to one. Will that give enough rotation on the flaps to get what you need. Normally a servo is 120 degree rotation and at 40 degrees flap rotation will that be enough.

good point but these are being used on the ailerons only, the flaps will actually be operated with true Hydraulic cylinders
As for servos operating at 120 degrees hmmm I don't think so total 90 degrees at best , correct me if I am wrong

 

[Forgues-Research]

That first gear was the prototype.

actually I was going to use the first gears but I decided to get the smaller one for better fit, , also the gear teeth are smaller and more of them I will check to see what the actual ratio is

 

[Forgues-Research]

the ratio is 2:1

 

[Forgues-Research]

this is the drum brakes I will use on the tigercat, here fitted to a 3D printed proof of concept inner wheel part