New United (first flights)

[Steve Helmick]

How's that TT prop working for you? Have you tried any others?  Steve

[Matt Colan]

How's that TT prop working for you? Have you tried any others?  Steve

It seemed like it worked well so far. I have a Majic 11.25-4.25 with UC that I want to try, and I'd like to try the Bolly 11.8-3.8 that works very well with this motor on the pipe.

[Randy Powell]

Well, fuel burned usually equals power available. On the other hand, if the engine is giving you the power you want, just regulate the amount of fuel in the tank. Mine started off using about 4.25 ounces. After it was broken in and working well, the fuel consumption went up quite a lot. To something like 5.5oz. I also used a bigger venturi in there and went to a more efficient prop.

[Matt Colan]

I have a 4 1/2 ounce tank in there now and it ran a very long time. I could have done an old time stunt patternin addition to the full AMA pattern I just did.

I won't know until the rain stops and I can get more flights, but I'll get a reliable time to go by next time I fly it, and start fooling around with props and Venturi size. I'm thinking going up to the Bolly prop I use for the pipe with the bigger Venturi should work well, if the plane likes that combo.

[Matt Colan]

Got five flights on United today. I switched to the bigger Venturi and the motor came to life! Absolutely perfect 4-2 run, and I can hear a faint "pipe-like" rattle at the tops of certain maneuvers right where I need a little extra boost! Needless to say, your header muffler is working like a charm Randy Powell!

I'm a little soft up top and I'm hinging in the corners of the triangles, so I'm going to shorten the lines a foot, and take some tip weight out. It also needs an ever so slight flap tweak. I noticed the outboard wing was up ever so slightly inverted when I let my grandfather take a flight on it.

All in all, so far I'm happy with it, and it's performing better and better with each flight!

Can't wait to do some damage in classic at next years NATS with it 

[Randy Powell]

Matt, glad to see you're getting what you want now. Sometimes it's just futzing around with stuff until you get the right combination.

[Matt Colan]

Matt, glad to see you're getting what you want now. Sometimes it's just futzing around with stuff until you get the right combination.

I'm still using almost no fuel. With four ounces of gas, I'm running right around 8 minutes. I could probably get away with 3 1/2 and still have fuel left over.

[Steve Helmick]

More prop load will increase the fuel burn and may make the airplane happier overhead.   

I'm wondering why Randy's fuel consumption increased as the engine loosened up, and that's all I can figger oot, eh? (Practising up my accent for the Western Canadian Stunt Champs, eh, hoser?)    Steve

[Matt Colan]

More prop load will increase the fuel burn and may make the airplane happier overhead.   

I'm wondering why Randy's fuel consumption increased as the engine loosened up, and that's all I can figger oot, eh? (Practising up my accent for the Western Canadian Stunt Champs, eh, hoser?)    Steve

That's another idea I could try that I didn't think of...thanks Steve for the idea!

[Randy Powell]

>>I'm wondering why Randy's fuel consumption increased as the engine loosened up, and that's all I can figger oot, eh? <<

And increasing venturi size and using a bigger prop.