Comments

Comments

“I just rang to say how much I appreciate the wonderful job that you did on my gyrocopter. . . . . . . It was a complicated job, but you have done it very well.”  –  Colin Wood, Cromwell  (on rotor + frame repairs to crashed Parsons tandem gyrocopter, Oct 2013)

 

Shadow FMY - 3 workers @ Manapouri (1024px)

“Bruce, no need to discuss your time taken, I know you have done the best possible. . . . Thanks for all you have done.”   –  Jeff Bannister, Christchurch   (on airframe repairs + upgrades to grounded Shadow, Feb 2012) 

“I wouldn’t have sold my damaged Shadow to just anyone. Bruce has the skills to fix it properly.”  –  Murray Hagen, Manapouri   (on selling his Shadow re-build project to Bruce Conway, Jan 2010) 
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Recent Posts

Canopy windows

new canopy windows for 1989 Shadow ZK-KLHOver the past few weeks, I’ve been able to return to re-building my 1989 CFM Shadow ZK-KLH.

The next task was to make new canopy windows. Unfortunately, I couldn’t source tinted 1.5mm polycarbonate in New Zealand, so had to settle for clear windows. The old windows made good patterns, not only giving me the correct outline shape, but also allowing me to pre-drill the rivet holes.

rear canopy window with twin latches on Shadow ZK-KLHEach rear window had a single central latch which resulted in bent lower tubes, so I opted to replace these with twin latches to securely hold the window closed. I machined new latch axles from solid alloy and filed two ‘flats’ to positively locate each inner lever (i.e. it no longer relies on friction to stop the inner lever from rotating out of alignment). Overall, these new latches are stronger and more secure, but only a few grams heavier.

machined axle of new rear canopy latch (Shadow ZK-KLH)

The rear windows also have a full-length lower tube (with a matching horizontal cut-out in the rear bulkhead), so that the lower rear corner of the window is not floppy. Where each latch is drilled, there is an alloy sleeve to strengthen the tube and reduce the tendency for the axle hole to wear.

PS: You can see the small side windows that were added to the canopy shroud. They will give the rear passenger a better forward view.

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