Scale 50cc Scratch Build From My Own Design Revisited

[Jetpainter]

Thanks guys! That is where the Jetpainter name came from. I used to paint, or build and paint airplanes for people many years ago, mostly ducted fan and turbine jets .

 

[Jetpainter]

I worked on the throttle linkage the other night. I fairly happy with how it worked out. I still need to take the engine back out so I haven't added the lock nut at the carb end.

Saturday night I built a removable battery tray behind the firewall. I'm quite sure this thing is going to need the nose weight. After I got it done I decided that my round hole in the firewall behind the carb needed some reengineering. All the DA50's I've had mounted like this always spray a little fuel through the hole and into the engine box. I don't want that mess on my batteries so I'm building a box to go over the hole. I'll get some pics of that soon.

The straps holding the batteries are just temporary.

 

[Pistolera]

Here's another way to eliminate the spitting in the box. It's a piece of PVC pipe. I used a scope extension ring to secure the screen on top. Not really needed tho. Pics will tell the tale.

 

[pawnshopmike]

Here's another way to eliminate the spitting in the box. It's a piece of PVC pipe. I used a scope extension ring to secure the screen on top. Not really needed tho. Pics will tell the tale.
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Dang! That's pretty damn fancy Earle.

 

[Jetpainter]

Here's another way to eliminate the spitting in the box. It's a piece of PVC pipe. I used a scope extension ring to secure the screen on top. Not really needed tho. Pics will tell the tale.
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That's pretty cool, I thought about doing that. I would need to go out the top like you did, but I think I'm going to need that real-estate for other things.

 

[Jetpainter]

I ended up enlarging the hole I had in the firewall by dropping it down and squaring off the bottom edge. Then I made a box out of 1/32" ply, fuel proofed it and glue it on. I also put an angle on the bottom of the hole in the firewall so anything that collects in the box will drain out.

 

[Snoopy1]

Here's another way to eliminate the spitting in the box. It's a piece of PVC pipe. I used a scope extension ring to secure the screen on top. Not really needed tho. Pics will tell the tale.
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That is realy nicely done hope to copy that in the near future. It will not work on the plane I am presently working on but soon. Thanks for that idea.
Can you explain your throttle servo arm it does not look right ? Is there two one on top of the other.

 

[Snoopy1]

I ended up enlarging the hole I had in the firewall by dropping it down and squaring off the bottom edge. Then I made a box out of 1/32" ply, fuel proofed it and glue it on. I also put an angle on the bottom of the hole in the firewall so anything that collects in the box will drain out.

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That should do the job and it looks clean and neat.

 

[Pistolera]

That is realy nicely done hope to copy that in the near future. It will not work on the plane I am presently working on but soon. Thanks for that idea.
Can you explain your throttle servo arm it does not look right ? Is there two one on top of the other.

Hah...yeah, at the time I needed a longer arm and didn't have one handy so bolted the longer one (that wasn't the correct spline size) to the smaller star-shaped one.

 

[Jetpainter]

Today I painted the gear legs and the louvers that cover the access hole for the gear bolts.
I considered rounding the edges of the gear but decided against it, so I just smoothed everything out and then sprayed a coat of self-etch primer then basecoat black and then clear.