I've got a 25cc Engine. What should I put it on?

[Mr Man]

Just as the title states I've got a 25cc from a leaf blower and want to put it on an rc airplane.

Hoping to use around a 22x10 propeller.

Any ideas are helpful!


Man.

 

[Mr Man]

P.S. Does hot HAVE to be Flite Test, could be rc plans .com or nerdnic or 13th squadron, or really anything as long as it doesn't put a virus in my computer.

 

[LitterBug]

Why such a big prop? That motor was designed for high RPM and a small impeller and is not optimised for such a big prop.

 

[Mr Man]

Just curious, what would be your propeller recommendation?
Thanks!

 

[Mr Man]

Perhaps an 18 inch I've seen it done before with 25cc engines.

 

[Mr Man]

I'm somewhat limited as far as building materials basically: Foamboard, coroplast, dowels, whatever's cheap except balsa.

 

[Draftman1]

I would go with the coroplast spad, large spad stick, I will try to find the link

 

[Piotrsko]

Could do a ( not so ) slow stick but it's gonna be full sheet size foamboard wings. Figure perhaps +20 ish pounds of thrust but whatever it is, it needs to be big and STRONG

Hmmm square plastic gutter drain for the fuselage, 4 sheets of foamboard for the wings, 1/2 inch plywood spar, another couple for the tail feathers.......

Another hmmm, the prop.will be more expensive than the plane

 

[Draftman1]

Free Plans

This ultra spadsick is designed for a gas engine

It’s a coroplast design

 

[Mr Man]

how do I download them?

 

[Mr Man]

Never mind I just figured it out, It was just an old link.
I just had to go to spad's website and find it there. Simple!
Thanks Draftman1!

 

[Mr Man]

Now I won't be building this plane for a little while so if anyone thinks they know of a better one, feel free to post it in this thread.
Also, Not sure on prop size yet.

 

[Mr Man]

Just found this Flite Test Video, Might be a good candidate for a 25cc.🤔 Anyways it looks cool.

 

[Mr Man]

Or mess with plans in a similar way

 

[Bricks]

This might help if you are going to use coroplast.

https://www.rcgroups.com/spad-simple-plastic-airplane-designs-176/

 

[Mr Man]

Still Not 100% Sure on Coroplast Due to my limited glue options. i.e. Hot Glue, CA Glue, tape.

 

[Draftman1]

Still Not 100% Sure on Coroplast Due to my limited glue options. i.e. Hot Glue, CA Glue, tape.

CA works great on coro, if flashed.

 

[Piotrsko]

Im fond of either liquid nails construction or RTV silicone for coroplast, with a tape cover on the outside joints. Some times you still end up with the "bag of balsa" mode after a crash.

 

[Mr Man]

I still like the Idea of a 400% Duster.

 

[Draftman1]

It does look cool!