06-19-2014, 12:55 PM
Join Date: Oct 2010
Location: Ex UK Brit now in Latvia west coast - Ventspils
Thanked 416 Times in 409 Posts
Club: Founder Member Ventspils RC Club. Ex Waltham Chase and Meon Valley Soaring.
How to repair a broken All moving tail pivot
My Lanxian F16 has a plastic pivot system for the All Moving Tail.
Fuselage sides have plastic plates - one each side - with a 5mm rod horizontally for about 30mm .. with a groove near the end. This slides into a mating plastic tube in the stab, which has a screw that winds in to slot into the groove ... stops the stab from coming of but allows the stab to rotate round that rod. The tube has the control horn as part of the moulding.
The rod snapped of in a landing and I have since cut the stabs into fixed and hinged parts. She flies but an F16 looks strange with elevators and fixed stab.
The plastic parts are shot and nothing can be done with them.
How to fix and re-instate AMT ?
I thought about a tube across the fuselage and fixing rods into the stabs ... but it's an EDF and that tube would cross the centre of the exhaust tube.
How can I do it ? Would there be a way to fix a tube each side into fuselage .. fix a bolt into each stab ... the bolt being a size to fit the tube ... then a nut used on the inside of fuselage to pull up the stab till it's near tight but free enough to rotate ? Maybe the nut in the stab with head of bolt in fuselage ? Could use a GFN (Glass filled Nylon) bolt to give strong fixing but able to sheer in event of strike ?
Anyone else had to fix similar ? (see attached...)
222kph PKJ,EDF Concorde,
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