Engine/Prop Question
 

I've got a new Magnum XL-108A and am going to be using a 13x6 APC for break in. I was wondering what would be a good prop to go with after break in?

RE: Engine/Prop Question
 

well 13x6 is too small for a 108. I use a 13x6 on my OS MAX 61 SF ABC long stroke with a TT standard mufler baffle removed which revs it up to 11,100 rpm.So I think 13x6 will underload this engine.what does the instruction manual says.I suggest atleast a 15x7-8 shoould be used.

RE: Engine/Prop Question
 

According to the instructions 13x6 break in prop, then for normal use 13x7, 14x6

RE: Engine/Prop Question
 

The Magnum 1.08 doesn't swing big lumber, nor does it turn many revs.

Dave. :D

RE: Engine/Prop Question
 

Then use a 13x6:) perhaps they have designed the port timing that way but honestly it is for sure a small prop for 1.20 cu in engine.[8D]

RE: Engine/Prop Question
 

Thanks for the info guys....

RE: Engine/Prop Question
 

I run a 14x10 on my ASP 108 (older one). A 15x8 also works well. Higher pitch flies my GB Ultimate Bipe fairly fast, with decent vertical. Also cuts the noise somewhat. A 13" prop on a 108 sounds small to me.

Clair