tweeter

Im in the process of building a goldberg ultimate arf...concidering using a o.s 120 ax...anyone else got this combo??? would be great to hear!!!!

flapper

Hi,
There are some good build threads on the Goldberg Ultimate 10-300 54" wing model in Kit Building. I am currently building one and am going to use a Saito 1.00. The plane is actually designed for a .60 2 stroke so I would think a 1.20 2 stroke may be overpowering it a bit. I havn't run one with that size engine so you might have better luck looking at the other build threads.

Best of Luck

gnirwin

My Feedback: (25)

I'm flying mine with a Saito 125. Wouldn't fly it with anything less. I think a 120 ax would be super.

tweeter

[:-]

rideblue

I was going to do the same with the 120 That would be a great motor I did the post with the ys 140 and the plane almost seemed like they were ment to be the 120ax is a lot lighter and lots of power so I will work great for you also if you live in the higher elev you will need that extra power like me im almost a 4500ft so I need all the power I can get I have seen the ax in lots of 60 to 90 size planes and they do wonders So Go Do It you will love it guaranteed

Don M.

My Feedback: (5)

I had a kit built Goldberg Ultimate and an OS 1.08. I flew it 1100 times and every flight I wished I had MORE power. The 120 is perfect if you like 2 - strokes. There are 2 at our field one with a YS 110 and one with a YS 140. The 140 is AWESOME but unnecessary On the other hand a Saito 100 would not be enough power for me, this bipe has a LOOOOOOT of drag.