I have just acquired an Aeromaster Too kit thru Ebay - something I have alwys wanted though it is probably 30 years old or so.

Any build suggestions would be most welcome.

Any views on which configuration is best? I like the look of 2 as it seem nearest to full size style

What about power? I shall use 4 C. What about a Surpass 91 or would a 70 be plenty. I want big loops and the like but endless vertical is not needed.

A few modernisations:

Two servos, one in each bottom wing

Wing bolts instead of bands for the bottom wing and landing gear.

Come on you experts and give me the benefit of your experience

Cool!

I got one off E-bay last week! It has not made it to my house yet though. Do you have the old Andrews kit or the not so old Great Planes kit?

Andy

Its the original AAMCO kit - hence my comments about it probably beeing 30 yrs old.The box refers to reed gear which was really only used in the 1960's and the plan shows Merco or Veco engines which I believe went out of production in the 1970's.

What are your plans for completing it?

What about ailerons on the top wings as well as the bottom?

A .91 Four Stroke will work well. A .70 might not give you enough to do the big loops but would fly it. Yes go with two servos for the alierons, bolt on wings, and I had nothing bu trouble with the interplane struts, so I made up struts like that on a Pitts. They just screwed on with a long ball driver and 2-56 cap screws.


Dru.

I got the Great Planes version. Unfortunately I have lots of planes ahead of this one to be built. I have always wanted one so I jumped at the one on E-bay. I'm interested to hear the recommendations you will get in this thread.

I have been real happy with other biplanes that have ailerons on both wings with a servo on each side on the bottom wing. I usually use two elevator servos as well. One for each elevator half.

I like blvdbuzzard's recommendation for the interplane struts. Sounds like the stock setup on a Sig Hog Bipe. Simple and easy to do.

Andy

I liked this kit so much back in the 70's that I built 7 of them. Back then a big .60 was about the max power we used and did fine on them. Do pay attention the the relative incidence of the wings. All mine flew best when the upper wing had about 1.5 degrees less incidence than the lower wing. Also required about 2 to 3 degrees right and down thrust. If I were building one now, I'd put a 90 to 1.20 4 stroke in it, should be a ball. Right now I'm about finished with the giant Aeromaster, putting 72cc Quadra in it.

David-

You will love this plane. I have one that my brothers built in the early 70s. It was the first plane I flew when I learned to fly in the 80s. Mine originally flew with a Veco .50, which was adequate for the type of flying you describe, but it can really use a little more power. I just put an OS .61 FP in it, which required a little modification of the engine mount and also required me to move the battery back a ways for balance. I would be concerned that with an FS 91, you might have to add tail weight. If I were you, I would consider something in between the .70 and the .91, like a Saito .82. It is the size of a .46, with the power of a .91 4 stroke.

I personally think the best looking wing configuration is swept on top and straight on the bottom, whichever number that is.

Have fun!
Scott

I just finished the GP Master and stuck the MDS 68 in mine.{{The only MDS engine I have been able to get to run correctly}} So far I have only flown the plane once so I don't have A lot of answers about it.
The engine is plenty, the loops were very big with no sign of being under powered at all.
I only put the ailerons on the bottom but have A servo for each one. I think it could use ailerons on both wings because the roll rate was on the sluggish side and not very snappy at all.
The instructions said the rudder responce was almost nill at low speeds so I enlarged it quite A bit and rudder control on mine is great at all speeds, even when landing.
The only real problem I have seen at this time is when landing, it's A floater and doesn't drop when I try to just use throttle control. The only other Master I have seen and flown was the same way.
When I got it home I added A little down and right thrust to the engine but as yet haven't got to fly it again so don't know if that helped with the small trim problems I have with the normal ground handling and little aileron trim I had to add for level flight. It wanted to drop the right wing in flight and it liked to wander to the left on take off.
When I fly it again I will post up on how it flies now with these slight trims.