Us 41
03-01-2003, 01:45 PM
#1
Senior Member
Thread Starter
My Feedback: (2)
Join Date: Mar 2002
Location: Broadway,
VA
Posts: 146
Likes: 0
Received 0 Likes
on
0 Posts
Us 41
You guys have helped me alot. All I hear is putdowns about the US41. I was wondering weather or not to put one in my 1/5 scale TF p47. Now by reading this I have made up my mind. The trouble these days is that everyone overpowers every thing . they think that if you dont have a zenoah or 3w the planes will never fly. Myself I am going to cover my bird with monokote not paint and fiberglass. I don't compete in any contests, I build for myself not the group around me. Again thanks 
07-29-2003, 07:44 PM
#3
Member
Join Date: Jun 2003
Location: Fredrikstad, NORWAY
Posts: 39
Likes: 0
Received 0 Likes
on
0 Posts
Us 41
I`m building a Big Hots, and wonder if my US 41 have the power to get her up where she`s belong..............in the sky.
Her weight will be around 15- 18 pounds. Prop size 18x 12 ??
Cbastian
Her weight will be around 15- 18 pounds. Prop size 18x 12 ??
Cbastian
07-30-2003, 01:56 PM
#4
My Feedback: (11)
Us 41
The weight is light enough that the engine won't have problems flying the model.
Select a propeller so that the engine is turning in the mid-7,000's, and you'll be OK. We'd think an 18 x 12 would be too much propeller for the engine, and would turn too low an RPM.
Select a propeller so that the engine is turning in the mid-7,000's, and you'll be OK. We'd think an 18 x 12 would be too much propeller for the engine, and would turn too low an RPM.
07-30-2003, 04:37 PM
#5
Senior Member
My Feedback: (16)
Join Date: Dec 2002
Location: Pueblo,
CO
Posts: 338
Likes: 0
Received 0 Likes
on
0 Posts
Us 41
Cbastian
Bax is right, 18x12 is a bit much. I have a GP Giant Aeromaster @ 18.5 lbs and the US41 with an 18x10 and now turns 7200-7300. I had a 20x8 and was only getting 6600 RPM. After a few minutes in the air it would start to load up, it was running to slow and to cold. Will try an 18x6-10 this weekend. PM me if you want results.
Bax is right, 18x12 is a bit much. I have a GP Giant Aeromaster @ 18.5 lbs and the US41 with an 18x10 and now turns 7200-7300. I had a 20x8 and was only getting 6600 RPM. After a few minutes in the air it would start to load up, it was running to slow and to cold. Will try an 18x6-10 this weekend. PM me if you want results.
