Sport Bud Nosen (!!!) 1/4 Scale Citabria Build! Woo hoo!

[pawnshopmike]

It's funny, I repaired my friend's H9 1/4 scale Super Cub firewall and have been working on other projects so getting another kit started just seemed like the natural thing to do. It's so relaxing gluing sticks together, I missed it and didn't even realize it!

View attachment 102669

Yup it’s good fun. And very therapeutic.

 

[49dimes]

Zooming right along . Do you think a 40 twin would be a bit much??? My Cub weighs 16 pounds and a 26cc motor going to haul it fine.

Ok! answered my own question. And the answer is.....NOPE! 105"WS. I did not think it was THAT big. Silly me .

 

[BalsaDust]

Ok! answered my own question. And the answer is.....NOPE! 105"WS. I did not think it was THAT big. Silly me .

Yeah if I build one it will either get a dle35 or VVRC 40 twin. My twin I currently have just runs so freaking smooth.

 

[BalsaDust]

I guess Bart how wide is the fuse at F1? Will give us an idea of wether or not the 40 twin would even fit.

 

[Bartman]

at its widest point it is about 7-7/8"

Keep in mind when you're thinking about an engine, it was originally flown with a .60 FSR. They even list the ailerons as optional. So if you lighten it up and throw even a 120 four stroke in it (a little less than a G-23 gasser, roughly) it's still going to go like stink.

 

[BalsaDust]

Yeah I'm seeing now on the box that is says around 10 pounds flying weight which pretty good for a plane that size. I'm thinking take some weight out and a nice 20cc would pull it around really well.

 

[Bartman]

I'm using a G-26 because that's what I have.

 

[49dimes]

For such a large WS 10.5 pounds is really light. I'm changing my answer again lol .

 

[Bartman]

Had to travel for work yesterday and today but put in a couple of hours tonight. Started tonight by removing the fuselage from the plans and studied the section drawings to see how the two sides were supposed to pull together. Measured everything and then braced the fuselage with scrap balsa before pinning it back down and triple checking everything so it's as close to perfect as possible. I'm pretty sure it's dimensionally correct and centered/squared as well as I'm going to get it.

The pins are holding in plywood doublers on the inside of the fuselage/cabin. They overlap the balsa joints to lock it all together and to transfer the loads from the wing saddle down into the fuselage. I'll do the other side tomorrow night.

Gear saddle and supports.

 

[Bartman]

Got up early this morning and figured I might as well pull the tail together. Used gallon cans to hold the sides perpendicular with the lines on the plans as the guide. It's pretty close to perfect, not quite but close enough for this one. I'll have some photos of the firewall mounted to the front end later on tonight.