Enough Power??

I'm kinda into shooting radio waves out there to control my planes these days but I'm looking into the possibilities of doing some C/L again by building an old favorite of mine from scratch...a Magician 35 (I got the plans from Leonard). I have a TT GP .25 and a venturi/NVA for it. Would this engine be sufficient if the plane was built on the light side as it should be? What line length and size would you recommend for stranded lines? I'm thinking 60' x .015".

I've also got TT GP .15, PRO .36 and PRO .46 venturi/NVA assemblies for my other engines. Any ideas for planes using those? Please keep in mind I'm just having fun...not competing. I want something that would be easy to scratch-build and flies fairly well.

The TT 25, and 60 foot lines should work well. Power is about the same as a FP OS 25, right?

I agree with Currell, if you build the Magician fairly light it should give good performance on the 25.

For the TT Pro 36, the ones I've seen put out quite a bit of power.
One of the bigger profiles, any of the 35-40 size Classic ships, or the newer 40 size ships like the Vector 40, etc., another idea is to creat a "profile" from one of the Classic planes. These seem to do well! As you might guess I like the classic era. But, the Profile Noblers, etc., that I have seen or built always seem to fly pretty good.

Now as to the TT46, you need a pretty good size plane.
Bill <><

I would be inclined to use the TT36 Pro on a Magician. It is a little lighter than a FP35, so the balance of the airplane should not be a problem. You could always use a low pitch prop if it is too fast. I've got a TT36 on a Ringmaster as a test bed. The longest prop I could get on with ground clearance was 10.5, so I've been flying it with a 10.5X4.5 APC. This is a stock motor except for venturi and a second head gasket. It runs a wet 2 cycle, not 4-2-4. I have a couple of Byron Barker modified TT36s that will go into the same airplane for break-in. This is a nice small, fairly light 36 motor.
Steve

Steve,

VERY good points, sir.

After flying a Stuka Stunt Works modified OS FP .40 in a plane built to Neumann's specs (possibly built a bit heavy) and having it dismally underpowered I wasn't too impressed with his engines...then I went to a stock TT PRO .46 w/ a 1/4" venturi and std. NVA spinning an APC 12.25 x 3.75 prop in the same plane and then it flew 'under FULL power'. All of the 'hoopla' about Leonard's engines were totally unfounded by me. I tached the one I had with the same prop and 5% more nitro than he used and NEVER read the same RPM's he claimed the engines would produce. Needless to say I was somewhat disappointed. Maybe others have actually seen what he claims??? ...or, his tach is CRAP!

SO...bottom-line, YES, I'm inclined to lean towards the TT PRO .36 in the Magician 35 myself. Something I have learned in R/C VERY well is that a tad MORE power is better than a tad LESS. More power allows you to PULL through a potential problem instead of making it a detrimental problem...can you say crash?

...sorry Leonard, but I had to tell the truth about what I experienced.

Gene, you sent that engine back to me and I checked it out and it performed perfectly with the prop and fuel I suggested. All I could say was that your tach was off, but the engine worked fine. I returned it to you, but you then disappeared from the scene.

Sorry, Gene, but that's life.

Gene, if you still have the SSW FP .40, I would be interested in buying it from you. I have some confidence in Leonard.

Also, Pat Johnston has been flying a Magician with an OS .25LA, Bob Smiley has been flying a Mathis Excalibur and Mikey's Models "Primary Force" with .25LA's. All seemed to have plenty of power. The Thunder Tiger .25 should work as well. The Excalibur is a bigger model than the Magician, and certainly heavier. On the other hand, with Legendary Texas wind and heat, more cubes would be good. I would probably move the stabalizer back on the fuselage as much as possible. Steve

OK gentlemen...
Back to back, walk ten paces, spin around and point your tach at a light bulb.

Gene: I have 3 SSW FP 40s, have used two, and have plenty of power. One of the planes is a big 50" bipe, kind of like a 38 Special (but bigger, and heavier, since the wings are foam).

We can help you on the basics of Needle Setting 101 right here, if you like. And, you don't really need a tach.

Gene,

My parents didn't warn me about people like you, but maybe the Stunt community ought be warned.

As it takes an extraordinary bit of hubris to come on a forum supplied by Len and then to rip him about an engine he says is to specification.

This sets up the classic "Whom do you trust?" situation. Which is very much a bad news deal for you. Len and I do not agree on a number of issues. But I would never, ever question his honesty or truthfulness in any conflict over who may be right and who may be wrong.

I'll have to remember this the next time you come around looking for free advice. And I hope the rest of the Stuka Stunt family takes the warning that maybe our parents should have given us after all about your sort of impaired personal development.

DAN...Could it be TEXAS?

Scott(HAY I just heard it)Riese:*