Author Topic: YS 61? (Read 1781 times)

Hyp05fxdl · « **on:** April 26, 2016, 02:19:10 PM »

Just curious, will a YS 61 fit in a Nc5?

Mike Spano · « **Reply #1 on:** April 26, 2016, 02:41:35 PM »

Yes sir.

Jon Yarger · « **Reply #2 on:** May 08, 2016, 12:48:39 PM »

Are you sure about that? I thought the YS 61 is the same size as a 91? The YS 60 yes but older 61?

Rodney Kirstine · « **Reply #3 on:** May 08, 2016, 07:31:25 PM »

Yes, it fits just fine. I ran one in mine for a while.

Jon Yarger · « **Reply #4 on:** May 09, 2016, 09:18:11 AM »

Ok, cool.

Mike Spano · « **Reply #5 on:** May 09, 2016, 10:10:20 AM »

if it is the same size as a .91 then I don't know....

Rodney, are you sure you ran a .61, and not a .60?

the ys 60 is 17.5mm x 44mm mounting pattern

the ys 61 is 25mm x 52mm

I miss read the original post I did think you meant a 60. I don't think the 61 will fit without modifications.

http://www.ysengines.us/manuals/manuals_old_us/helicopter/61ST2.pdf
http://www.ysengines.us/manuals/manuals_us/helicopter/60SR.pdf

Rodney Kirstine · « **Reply #6 on:** May 09, 2016, 11:44:37 AM »

I'm sorry, Mike is right andit was a 60 that I had. Sorry for the confusion.