35CC 3D Plane

[Abrams]

I'm going to add the thickness on the back side of the firewall just to be safe.

 

[Enterprise]

Can't hurt. On my gasser conversions I had to beef up the firewalls. Add some triangle to get more surface area on the inside.

 

[Abrams]

Ooooohhhh... it gets way more interesting. The DLE 30 is a tight squeeze to get the footprint of the standoffs on the fire. The bigger jug on the DLE 35-RA makes for a little wider footprint. OOPS!!!

I love an engineering challenge. Notice the bottom right hole.

 

[SnowDog]

I can't believe you are going to try to stuff a DLE-35 into a Velox!

Are you going to be able to balance the plane?

 

[Abrams]

I agonized and research for about a week before I decide to go ahead. The weight difference between the DLE 30 and the DLE 35-RA is less than 2 ounces. I actually got physical weights before I made my decision. If a 30 will balance, I'll get a 35 to balance. It might take an ounce more at the end of the tail, but it will work.

 

[Enterprise]

Epoxy on a piece of square stock, insert a threaded insert in the proper hole position and triangle the square stock. You might have to cut the bolt to get it to fit properly. I usually use blind nuts, but I think that will work.

 

[Abrams]

Here is what I came up with.

Firewall doubler to go on the back side. Brings the firewall up to the recommended 10mm.


Trimming to make the doubler fit.


Bolt, washer and standoff installed.


Triangle stock in the inside of the firewall.


Finished product.

 

[3dNater]

Nice work!

 

[gyro]

VERY nice!

 

[dth7]

sorry, I was on an early page in the thread. Irrelevant comment since you made a decision and started the build. Good work so far. That thing is going to haul! Have fun.