Teakle ASW 20 3.5/1

[Peter Balcombe]

Barry,
I didn't say no flying over the winter, merely that my '20 would go towards the rear of the forest of fuselages stored at the back of my workshop.
Anyway, I don't live quite as far south as you

[Martin Church]

I'm planning on putting micro rudder & elevator servos as near as I can get to the control surfaces. What would be a good mid priced servo for each control how many kg's are needed? I'm thinking over 2kg torque but less than 5kg at 4.8v

[Chris Bowles]

Hi Martin, I have used MKS 135, or if you need a bit more power MKS 125, it's always better to have to much than not enough !!

Chris

[Martin Church]

Did you mean KST 125 KST 135 Chris?
I searched mks 125/135 but came up with nothing on HyperFlight
Guessing that around 5.2kg is fine on elevator & go fo the 125 @ 7.0kg for rudder
http://www.hyperflight.co.uk/products.a ... g-7-0kg-cm
http://www.hyperflight.co.uk/products.a ... g-5-2kg-cm

[Chris Bowles]

Martin,
Yes got it wrong again, I meant KST, have been using them for a while now, got 20 plus, no problems yet, thats the kiss of death!!

[Martin Church]

Cheers Chris not badly priced either so I'll get one of each ordered up

[Andrew Wallace]

I'm just about to start building one and there's a few questions I would like to ask
What's the best way to do the elevator, do you go with the long bar in the fin or do you mount a servo in the tail or the fin ?
Where do you fit the servo for the airbrakes?

Thanks
Andrew

[Peter Balcombe]

Andrew,
I buried my elevator servo in the tailplane, with a short drive to the elevator.
Much more rigid, and simpler to rig as long as you don't let the fuselage connector drop back down the fin
No problems in flight over several years use.

[Martin Church]

Andrew,
I buried my elevator servo in the tailplane, with a short drive to the elevator.
Much more rigid, and simpler to rig as long as you don't let the fuselage connector drop back down the fin
No problems in flight over several years use.

Hi Pete I've been slacking after having big issues after carving the ailerons from the living hinge as advised.
It's now impossible to tape hinge & get enough movement for the ailerons dye to warpage after being detached. Not sure what to do next really only thing I can think of is to put plastic pin hinges to control the gap to a size that will allow them to waggle the required amount.

What type of servo did you fit & what pull does it give you at 4.8v
Martin

[Andrew Wallace]

Peter when joining the tailplane halves did you strengthen it in any way
Thanks