Ute R/C Association Come on, let's fly!

Well not to put a wet blanket on what appears to be an admirable plan with a desire to keep costs down, but I suggest that you reconsider your servo choice for such a project as those 821's are not recommended for gassers let alone something that size. From the Horizon website:

"The DS821 servo is a powerful, accurate sport digital servo recommended for RC airplane applications up to 1.20-size. For helicopters, the DS821 operates best with 30-size glow models, and up to 50-size electric. Loads and vibration in larger models may cause premature failure of the servo resulting in damage or injury to property and persons."
http://www.horizonhobby.com/Products/Default.aspx?ProdID=JRPS821

Gary Z.

However...  If you are placing these servos in a large and very slow or docile airplane then they will be just fine!

My 25% Hangar 9 Piper J3 Cub PNP has 6 of these servos in it and I have not had one servo failure yet on this plane and it has 270 flights on it now. These are the servos that came preinstalled in this plane.

I think they will be ok as long as the speed of the plane does not exceed around 60 mph.

I am not trying to step on toes. Just was thinking it should be ok with the type of plane being considered for them.

Randy H.

Matt,

If you need a little machine work done let me know. I have access to a full shop of equipment.

John K

Matt,

I have a "Flybaby" kit. I think that it is a 1/4 scale, I'm not sure. I think the span is 6-7 feet. I will check on it tonight. It is a kit that i have started, but it is all there. Let me know if this is what you are after. It is similar to Tom"s "Flybaby" only not as big.

Steve Wilson

>>> "Matthew P. Barnson" 7/26/2010 5:17 PM >>>
Hey, clubbies!

I've been so impressed with the long flight times & great sound of Randy's 1/4 scale Cub when I teach on Wednesday nights that I decided I wanted to get into gasoline power, too! However, I'm very budget-limited (four kids at home, sole wage-earner) so I picked up a used Ryobi 31cc weed-eater I am pillaging the motor out of, and have a passel of JR DS821 servos and some spare radio gear & batteries ready to dump into a suitable airframe.

My goal is to build a "utility airplane" for club shows and Training Night: candy drop, docile, good trainer, very slow landing, tow banners, learn about smoke systems, and practice some light-weight aerotowing with sailplanes. Unlimited vertical, hovering, or blisteringly fast low-speed passes NOT on the menu! Ideally, big, slow, not necessarily aerobatic, but able to handle heavier wing-loadings with ease.

Before I drop the cash on a kit -- and realistically, I'm not that great a builder, so I'm not ready to try to build a brand-new 12-foot "Builder's Kit" Telemaster yet! -- I was wondering if any club members might be able to help out. Do you have a large, beat-up, slow-flying airframe you're not flying anymore -- like, perhaps that you've moved the electronics & motor to another airframe -- that might be suitable for the job that you're willing to part with cheap or free to a good home? I've pieced together several crashed airframes before, so I'm not afraid of torn covering, shattered balsa, replacing fuel-soaked wood, and fabricating new firewalls.

Reply on the board, mailing list, or via email at , or via phone at USA 1(801)999-8390. Thanks in advance if you can help get this "off the ground"!