Tag Archives: bond

Windscreen – Trim to Fit

Having put this off as long as I could, I’ve summoned the courage to trim the windscreen until it fits. I absolutely do not want to crack it and I cannot afford to over-trim. It has to be done, just so. If ever there was a time to apply, measure twice, cut once – this is it!

Along the way, I take comfort in and from small stress-reducing distractions. Testing out my fancy new lithium battery charger yields a few moments to gather myself. The charger has a feature that can supply up to 10A of current to power the avionics and allow for extended sessions of testing, configuration and familiarization – ok, play! There’s a lot to learn and it’s going to take quite a bit of play time.

Canopy Latch and Exhaust System

The canopy latch is inset within an oval area that must be carved out of the top front of the canopy plexiglass and underlying composite frame and held in place with blind M5 rivnuts and screws. Let’s just say that this is a challenging and nerve racking set of tasks. And – that’s a major understatement. But, with patience and a good bit of careful work with my trusty Dremel tool, I was able to achieve what I deem, at this point anyway, a satisfactory result.

The latch mechanism is an over-center affair with a hook engaging a latch pin that mounts to the top underside of windscreen support arch. Four 3,2 x 10mm CSK rivets attach the pin and it’s mounting plate to the arch, along with whatever additional security is afforded by a dollop of JB Weld epoxy. Where exactly to position the pin is an exercise left entirely to the discretion of the builder. Good luck with that.

I think by the time I get the weather seal in place, the latch will pull the canopy closed – firmly and without gaps. We’ll see. All of this latch fitment has happened before having the windscreen and support arch bonded in their forever positions. I’ve got my fingers crossed. Time will tell.

The exhaust system has been languishing in a box and it seemed a good time to see how well (if) it fits with the engine and airframe. It looks… maybe not so bad. Good!

There’s going to be some work needed to get the cabin heat muffler shroud assembled, because I don’t have a part that actually fits. So far, I’ve gotten 2 different parts (and part numbers) from the factory, but neither part matches the mounting rings on muffler. Argh. I’ll have to adapt and/or fabricate something. But, at least it seems the exhaust pipes and muffler do fit. Hooray for that.