Amelia is back home!

[rail]

Re: Amelia is back home!

Eric,

If the 60+ hours a week slows down at the jet factory, I would like to visit and see the T-Craft?

Charles

[Dano"T"]

Re: Amelia is back home!

Eric....We Like Pictures!

[Acroeric]

Re: Amelia is back home!

So- I had a chance to finally fly in smooth air yesterday and found that my ASI is way off. A 2 way GPS run showed that it cruises at 109 mph at 2500 rpm with the 74-41 Mccauley. WOT it will turn 2800+ RPM and 125 mph. On the downlines I'm all over 3000 RPM, especially the 1/4 roll after the hammer in this years sportsman sequence.

I really do not like turning that large of a prop that fast. I think I found a 69-48 Cessna 150 prop to try. The key to a stock O-200 producing power is getting it to rev. Right now I see 2550 on climb out (around 85 hp) I'd like to see that number 2650 or so and 2900 flat out with the smaller diameter prop. Hopefully I'll get to try it this weekend.

I did notice that both ailerons are drooped a little and I need some right aileron trim. I'll raise the ailerons so they are both 1/8 high and get the trim right. I bet this will be good for a few mph- it is a trick the Monocoupe guys showed me years ago. It speeds them up by almost 10 mph.

Dano- there is no way I could ever compete with your photos- here is one I took last night after a flight. She is all tucked away in the hangar. I hope to shoot some video soon of some acro with the goPro setup.

[Acroeric]

Re: Amelia is back home!

Charles- Come by anytime. I have some drawings I need you to look at and quote for building wing tanks and fittings. I finished my new Clipwing Cub and Tcraft wing kit and am about to build the first set for a local fellow- hope to start selling them soon after that. It is way different than stock- there are Zero piper or Tcraft parts in it, clean sheet design with new style 30% hinged ailerons. Should be a hoot to fly.

Also- working on a fuselage conversion kit for the Tcraft for my clipwing mods. Need a quote on that too.

See you soon-
E

[Dano"T"]

Re: Amelia is back home!

Thanks Eric....she sure does look nice. That's what I'm missing....something to do some acro in....hmmmm.

[Acroeric]

Re: Amelia is back home!

Come fly it anytime to see if you like it.

[Jim Herpst]

Re: Amelia is back home!

Eric, I looked at my notes I made after talking to Mike Swick YEARS ago. He told me then for the 0-200 Swicks the absolute best prop for this combo was a C-152 prop which is the 72-52.

I am trying to figure out what the best COMBO for my clipped with the Stroker 85. I know you said Don said 71-41 for the stroker mod just wonder for the airplane too... It DOES sound right based on your experiments with the 0-200 which gets me in the ball park I suppose. The length may be ok if the engine can wind up enough with the 41 pitch . With the c-90 cam and empty weight of 790 (guess) hope it can be at least that..... guess time will tell !

[Acroeric]

Re: Amelia is back home!

Jim- trust me on this- the 72-52 is a TERRIBLE prop for any of the small continentals. Way too much pitch. I tried on years ago and it turned a whopping 2100 RPM static. That prop is a climb prop for an O-290 on some aircraft, 90 less cubic inches is a bad thing.
I had been told the same thing-

If I said 71-41 I mis-spoke. 74-41 McCauley Cliptip is the one you want. 71" is a bit short and it will really over-rev.

I never got a chance to try the Cessna 150 prop this weekend. I hope to this week sometime just so we have another data point to compare. I think it is a 69-48 McCauley.
E

[Jim Herpst]

Re: Amelia is back home!

na I mistyped you had said 74/41. I will hang on to this nice74/45 and pitch it down when the time comes. Thanks for the advice. Also what do you think about using the Ellison Injector on the pumped 85. I have A Srtromberg that could be rejetted for a C-90 but afraid that may be it Thoughts?

[Acroeric]

Re: Amelia is back home!

If you have an ellison they work great. The Rotec is much cheaper and works awesome too. I have a friend that tried the Aero carb and ended up taking it off. It did not do well at all. Either way you will need a way to use a low pressure fuel pump. I have been using a tiny electric one made by Facet ($20) that you can switch on when you fly acro, turn it off when you don't. The little 12v 7a model airplane battery powers it and the radio for many hours between charges.

The key is keeping it light and simple. Simple is light. I still say it is possible to build a 700 pound clipwing. Come see mine- well go fly and you can see how a 800 pound clipwing performs on a stock O-200.
E

[Jim Herpst]

Re: Amelia is back home!

Eric, Is the little pump needed for takeoff ? Or is it when going inverted. Also Rotec ? Is that the same as the guys down under making the Radial engines. If so or not what model is good of this Rotec carb. I do not have an Ellison on hand. Pricy Huh. Could just jet up the Stromberg also but do not think it jets past 90HP

[Acroeric]

Re: Amelia is back home!

Gravity feeds it fine for anything but inverted flight. Yes- it is the Australian Radial guys that make them now. There are several in use now and all are working very well. They are less than half of the Ellison and seem to work as good or better. I have one for the Lycoming 320 series. It is half the weight of the carb it replaced.

[Acroeric]

Re: Amelia is back home!

Loving getting ready for IAC season. . . . . looks like 4 days in a row of good flying!

[rail]

Re: Amelia is back home!

Charles- Come by anytime. I have some drawings I need you to look at and quote for building wing tanks and fittings. I finished my new Clipwing Cub and Tcraft wing kit and am about to build the first set for a local fellow- hope to start selling them soon after that. It is way different than stock- there are Zero piper or Tcraft parts in it, clean sheet design with new style 30% hinged ailerons. Should be a hoot to fly.

Also- working on a fuselage conversion kit for the Tcraft for my clipwing mods. Need a quote on that too.

See you soon-
E

Eric,

I think we are playing phone tag! Sorry about that, the R&D shop has kept my schedule out of tune.

Try to call me again or send a PM.

Charles

[Acroeric]

Re: Amelia is back home!

More time getting ready for the contest, got the 74-41 McCauley back from the prop shop. The overhauled it and balanced it. It is the perfect combination for an O-200 powered clipwing. Way better climb than anything else and at least as fast on top end. I am getting 115-120 mph flat out at 2750 rpm. If I were to advance my timing to 28 degrees and add the higher compression pistons I'm sure it would turn it 2850 or more. Loops from level flight are easy as are rolls etc.