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View Full Version : What size engine ?


Captkev
11-02-2005, 06:10 PM
I would appreciate a little feedback from the members. I am currently building a Unionville Beaver kit, 72" wingspan,back after being away from the hobby for about 25yrs. Seems I have a lot to relearn about new techniques being used today. For instance what engine is recommended for this size model,I have been told by a friend that a four stroke OSFL70 is a good unit, or an Saito FA72 4 stroke. mayby this is a little overpowered, and why not a two stroker instead ?
Second question, I have been looking at the Futaba 6 channel radio. On my Beaver, planning to use; rudder, elevator,flaps, ailerons, and throttle, and wondered if this is enough radio to do the job. I am going down to the hobby show this weekend, and will probably see some good show deals on these items.
And while I am sitting here doing my two finger typing, might as well ask for some inputs on filling holes and joints on balsa. My kit as many of you probably know, is 90% covered in sheet balsa, which I am gluing on with epoxy. For filling the seams or imperfections on the balsa, I have been using epoxy mixed with a lite micro-balloon filler. But by golly, this is one hard stuff to sand down after its set. Does anybody use a household type woodfiller, bondo body putty, carpenters glue mixed with a filler, or ?? I have to get the surface near perfect before applying the plastic covering, which is also new to me. (Used to paint all our models) Im not the ancient mariner by the way, just raised a family, worked long hours, now am retired, and looking fwd to messing about with planes once again. Thanks guys, looking fwd to some replys.

IAR 80
11-02-2005, 07:45 PM
you can use Poly Instafill to fill the imperfections. it's available at any building stores or Canadian Tire.very light, easy to sand.

hope it helps.

ovidiu

Captkev
11-03-2005, 01:05 PM
Thanks for the info IAR80, thats one down and two to go. Never thought of that for a filler, but will pick some up soonest to try out.

Bkind
11-03-2005, 04:02 PM
Any of the 45 size 2 strokes have more than enough power for this plane. even on floats. Saito 56 is also a good choice if you prefer a 4 stroke. I flew one for a few years with a os la 46 on floats. It worked well.
poly instafill is a great cheap filler and is light.
Have fun Brian

1367mustang
11-04-2005, 03:33 PM
Check out Hitec Optic 6 specs. Nice system.

Captkev
11-05-2005, 10:07 AM
Thanks guys for the info posted. So nice to get feedback from people who have done that, been there, starting out like I am now. Was down to the Hobby Show fri and met a lot of nice RC'ers and got some good tips. (Everyone seems to use Insta Poly, something I never would have thought of) Good flying.
Kev

Pics of wing half attached.

britbrat
11-12-2005, 09:01 AM
I have one & it flies quite nicely on floats with a TT 42 GP. This bird just doesn't need much power to fly well -- even from water.

Donkey Doctor
11-14-2005, 02:37 PM
Hello; That is quite a popular model here on the west coast. I have a kit of one that I haven't started yet. Most of them seem to have Saito 45 or Saito 50's in them, in fact, I don't think I have seen one with a two stroke in it. I think that a 70 would be needlessly heavy, and needlessly powerful. I intend to use one of my Saito 45's in mine,, when I get around to it.

Captkev
11-17-2005, 05:11 PM
Hi Guys,
Just came on tonight o check out the site and seen your new messages. To all who replied, much thanks, and as I progress, will post an update everynow and then. Learning as I go. Must say though, this is sure a super site, with loads of info to be picked up on these forums.

Kev

cf-drg
12-11-2005, 10:09 AM
Just wondering if you are going to put it on floats?