Hi,I will plan to buy Goldberg Decathlon ARF.I wondered if anyone had to built this plane ?

I want to know how they go ? I have Magnum 160 twin and I think I will use for the Decathlon.

I need your ideas,thanks

This is a FABULOUS airplane!

My only suggestion is: Remove the wingtips.

Goldberg lengthened the wing so it would be IMAA Legal, but it really restricts the roll rate. I was going to "Clip" the wing, but the Owner of CGP told me to try just removing the wingtips (They are about 3" long each). It made all the difference in the world. and it's easy to do.

Just slit the Ultracote along the tip and peal it back. Then break off the horizontal plywood tip, sand smooth and iron the covering back on.

The Decathlon is a very nice flying plane. The 160 will probably be too much for this airframe. I started with a Saito 150 and had to redo the forewall. I then put an OS 91 FX on the plane and it flew great. The third engine was a Saito 100 that was the best of the three. It fit the cowl well and powered the plane for all the scale and some what extreme maneuvers.

Hello,
I have a Goldberg Decathlon with a 91FX on it and it weighs 8lbs on calibrated scales.
A Menz 15x8 is on it and it is turning at 88-8900 rpm. The engine seems to like that and the airplane will do knife-edge loops.
Good throttle response and lots of power.
Lots of power is good as long as the airplane doesn't get heavy.
Good Luck
John

Thanks for your replies.I have more questions.

In your opinion what is the most suitable engine option ?Who can give me a short review ?

I have heard that high wing planes like to float and tends to land very long.Is it possible to use flaperons ?


I am wondering if anybody is flying with this plane with flaperons?

Any advice,tips would be great.Thanks.

Isaygen, I have no answers for your questions, but just wanted to say "Merhaba" [sm=sunsmiley.gif]. I'm not sure about the spelling, but that's about all I remember of the Turkish I learned while stationed in Istanbul in 1961 in the US Navy (TUSLOG Det 12). I know things have changed since I was there, but it was my most enjoyable tour of duty.

Jack (back then I was known as DIZ)

I think of the 3 engines I used the Saito 100 was the best suited to this plane. If you use a 15X6 prop it will slow up very well for landing yet will give great vertical performance. Larger engines will require larger props that don't give good ground clearance or a higher pitch prop that will not let the plane slow up. A low pitch prop acts like a brake.