3D Rebirth of a Yak

[Daytonarc]

The wood was crushed from the washers for the hatch bolts and at the rear of the wing pocket from the impact. Epoxy with micro balloons makes a very light, hard and easy to sand filler. Some Vaseline on a hatch bolt then thread it into the blind nut to make sure none gets in the threads.

 

[Daytonarc]

The filler will be sanded smooth. The plane was destroyed from the wing tube forward.

New 3 layers of 1/4 ply for the landing gear with new wood new braces, and new carbon fiber pins. Epoxy and clamps are my friend.

 

[Daytonarc]

Time to start making it look like a Yak again. The F1 was in bad shape so I tied the bottom of the front of the hatch area together with a carbon fiber strip shown in the picture above and made a new 1/8 ply front. More epoxy and clamps.

 

[Daytonarc]

New engine box sides epoxied, drilled and doweled. New firewall epoxied on. GP 88 EVO test fit, engine box sides need to be cut for muffler clearance. Refit engine after cutting sides and check muffler clearance.

 

[Daytonarc]

laminated carbon fiber cloth to 1/8 ply then attached it to the 1/4 firewall with, you guessed it, more epoxy and clamps

. this provides an extremely strong firewall. I also doweled the holes for engine bolts that I had drilled too low on the firewall.

 

[mikeh]

Nice work!

 

[Daytonarc]

Thanks

 

[BalsaDust]

Looks good. Always nice to see a busted plane come back to life.

 

[Daytonarc]

Looks good. Always nice to see a busted plane come back to life.

Stronger, straighter and better is the goal. It amazes me that when ARF parts are no longer available airframes get discarded.

 

[Daytonarc]

Added carbon fiber rod x bracing, pinned the firewall with small carbon fiber rods in front of the carbon fiber cloth layer and laminated Kevlar fiber tape to engine box. This should be strong enough.