RE: Tower Motors??????
Hi All; I have several of the Tower engines. 2 75's and 2 46's. My .46 gave me some trouble getting it diled in till I gave the carb a close look and decided to remove the low speed needle and give it a closeer look. It's tip was very blunt with out much taper. I chucked it into my electric drill and lightly spun it against a fine file to give it a little more taper, What a difference, engine diled in and ran as it should. a low speed needle is only a dollar or two if you get it too thin. Good luck TomP.
Posted on: 3/24/2005 1:56 AM by Author "cubflyman"
in the forum "RC Airboats"
RE: OS LA 40 on an LT-40!
Hi; I have several 46LA's and one 40 LA and have used them on several planes. our local club here in New Hampshire has great sucess with the LT40 with 40LAs. Try going down on pitch, you should be able to get 11k RPM with either an 11x4 or 11x5 prop. the lower pitch props will give you better acceleration to take off speed with a shorter roll and a better clime angle , like downshifting your car to go up a hill, and yet take the plane through any manovers with ease. why use a prop that wants to go 100mph on a plane that tops out at 60mph? with a 4 or 5 inch pitch you will set your idle rpm around 3000 RPM, and still land yet have better throttle responce if you have to go around again, fuel consumpsion won't be much more, if any either, with level flight at a little more than half throttle. APC props work well, but paint the tips white or yellow so that you can see where the tips of the spinning blades are. the gray props are invisable and almost as sharp as spinning steak knifes. Have fun and fly safe . TomP. PS my 46LAs like a second head gasket and a tower plug or an OS #3 plug to run smoothly. It's snowing get out the skis!!
Posted on: 2/15/2005 2:48 AM by Author "cubflyman"
in the forum "Kit Building"
RE: Cub as a Tow Plane
Hi ; I think you might find the info you are looking for about towing gliders aloft in one of the links on this page of links that Alen tong put together. I have spent meny hours checking out the links on this page, and found that most of them still open up OK Lots of general R/C and full scale info to enjoy. http://homepages.ihug.co.nz/~atong/ I hope that I copied that link right, so that you can just click on it, I will check it after posting it. P.S. this is the first time I've posted a responce. TomP. [quote]ORIGINAL: khodges There's a guy at our field, has a GP .40 Cub with a OS .46AX on it and he tows gliders up to 60 in wingspan with power to spare, so you should be in business and then some with a .91 on a larger plane. I fly a L-4 with a 84.5 wing on a .65 Saito, it will take off at 1/2 throttle. I'd try a 14 in prop, 5 or 6 pitch, and see how it does. A 14 is scale for that plane and will give you adequate ground clearance when the tail of the cub lifts, the .91 can handle that diameter with no trouble, and you'll get plenty of thrust and pulling power. I use a 14-6 MA K-series, and it will cruise at 1/4-1/3 throttle, any more power and I have to start adding down trim because it wants to climb with the increased airspeed. BTW my plane weighs 9-1/2 pounds. I haven't yet tried towing anything, but the guy that has the GP Cub says it would make a great towplane; he's one of our club instructors and I trust his judgement--he taught me. [/quote] [link=http://homepages.ihug.co.nz/~atong/]Alan's hobby links[/link]
Posted on: 1/18/2005 4:55 AM by Author "cubflyman"
in the forum "RC Scale Aircraft"