BVM Mig.15

If anyone can turn this into a top model Pete you can. John is in safe hands.looking forward to the build thread once you get started.

It's gone very quiet at Pete's end. Either he is having a well earned break or he is still reading the manual or looking for part no 209a/ii left side. :lol:

flyingpete wrote: Chilver aviation will be going on Christmas shutdown this week so not much will happen for a couple of weeks. f15

Oh Yes! Forgot.

Christmas tree up, outside lights done and extra sockets in the bungalow done I need a modelling fix
The fibre glass canopy hatch requires the glazing panels to be cut out, so to leave just the frame ready to glue the clear panels in at a much later date.
This is a really tricky job that has to be done stone cold sober as one bad slip with the dremel and its game over.
Firstly undercut by 2mm all the straight lines with a cutting disk, stitch drill the corners.
Once all cut out, clean up with a drum sander on low speed to within 0.5mm of the finished edge. Using perma grit large and small files finish to the final size.

Canopy frame finished

Next up are the speed brakes or speed boards. As these are designed to be deployed in flight on the model thay are made from carbon fibre for added strength . First job is to cut them from the marked sheet using the same method as before and add the 1/8 ply stiffners using med cyano.

Good to see you are making the most of your 'down tools' time Pete
There seemed to be a lot of advice and addendums associated with the speed brakes. Would these be deployed with the flaps typically? And is there enough room in the fuselage for small hitec mg servos to operate the brakes, and should we be worried about the proximity to the thrust tube (heat affecting the servos), and should the brakes be on a slider switch or just slam to full deployment?

BVM recommends that the air brakes are deployed with full down flap. No problem with heat from the exhaust as everything is covered by the heat blanket. I plan to use thin mg hitec glider wing servos.

flyingpete wrote: I plan to use thin mg hitec glider wing servos.

Best of luck with sourcing HiTec slim wing mg servos Pete. They are like gold-dust to find. I had to back order 2 of 4 for my 3m glider. Took 6 weeks. Wheelspin Models got them for me.

Nice job of cutting the canopy. No option to make mistakes Pete so a steady hand. Good on yer!