I am after a 3D capable biplane, preferably for petrol (GAS) power. Nothing too big but bigger than 120 size.

I have been looking at the GP Christen Eagle and the Goldberg Pitts S12.

What do you think?

Any other suggestions?

Thanks in advance
Simon

Either one is great although I have not flown the S12 yet I here it does 3D well. I would think that the Eagle does not do 3D well as it is a short coupled plane

Now I have owned the CG Ultimate and using a YS 110 turning a16X6 APC and it was a 3D monster and had absolutely no bad tendencies although it's not a 120 size. The flatest flat spins you have ever seen, Would hover at 1/2 throttle, Knife Edge loops as big or small as you wanted, A Blender that wound up extremely tight and fast. It did a lomevac like you have never seen before.

The DP Ultimate is a 120 size and I have seen one do everything my CG did using a YS140 Sport turning a 18X6 APC. In my opinion, if you want a really good 3D bipe, any of the Ultimates will do.

You also have:
Chip Hydes Double Vision (Ultimate built around a DA-50)
Hangar 9 46% Ultimate (An Ultimate on Steroids)
Areoworks Ultimate


As you can tell I think the Ultimate series would be your better bet for 3D

i second the ultimates. but also i have seen a kangke waco fly 3D as well. it's different and yet with the right gasser in it, does a beautiful hover and harrier.

Colin,

If your looking for a 3D ship I would not recommend the GP Eagle. I own a GP Pitts, and I like it a lot. However, It is not a good 3D ship. As mentioned above, to short coupled. The Pitts, and Eagle are basically clones, with cosmetic changes.

I have been considering the following for my next bipe: Kange Waco, Chip Hyde's Double Vision, both should be good for 3D, both different from what is normally seen at the field. Also considering GP's Super Stearman, just because it is sooo cool. Don't think it would be a good 3Der though.

Of course if you want a proven design for 3D and don't mind haveing a often repeated aircraft, then by all means, go for an ultimate.

Hope this helps.
Craig

From what I've heard about the Chip Hyde Double Vision, it is exactly what you are asking for. It does every 3D manuever in the book and does it very well. Made for a light weight powerful 50CC gas engine of your choice.

There is one of those up for auction in RCU market right now.

The GP Cristen Eagle is waaaaaay to heavy for good 3D performance, wingloading is about 28 oz/foot. Another potential plane is the WM Ultimate, 27% its AUW is only 15 lbs, it used to be an Aeroworks plane. Guess the Chip Hyde is a tried and tested formula.

have to agree with everyone else here.

Ultimates are the way to go for 3D compared to the pitts or CE. i've got the GP33% pitts/Moki210, and although it flys well, it's not in the same league as my CGB 54"wsUlitmate with an OS 1.08. Love both planes, but the little Ultimate does high alpha much better.

I've just starting flying a 27% AW Ultimate with a DA50. I can tell this thing will rock once I figure out how to dial it in. WAY more sensitive than my CGB Ultimate however.

Double Visions are great flying planes, but I prefer something more scale looking, which the DV is not. Plus, it's too long and ws is too wide to fit in my truck assembled. The 27% Ultimate fits easily.

Go to Ohio Model Products and buy the 40 size 3D bipe kit called the OMP Boxxer Kit . It truely is a light ,over powered ,tail heavy ,3D machine .I'm putting an OS 60 2/stroke on it with a 13/4 prop. Look at the 3D video

CA Models also makes a Pitts Stinker thats great for 3D.

Did you actually read the question???

While that is an EXCELLENT airplane.. and I saw one at the Toledo show today..it is not bigger than a 1.20