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| Engines Discuss engines |
Topic Review (Newest First)
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| 03-24-2016 04:44 PM | ||
| OLD PRAIRIE RED NECK |
Re: Under .35 CuIn I have run them, sweet little engines but no it would not power a 1/6 scale cub. It may get it off the ground but not likely over the fence. Unless you could reduce the weight of your Cub by half that is! A Saito or OS .30 on the other hand would fly it in a nice scale like manor. There is a big different between them and the old OS .26 in the power department! A .40 or .45 4 stroke would be more than adequate. |
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| 03-24-2016 02:46 PM | ||
| paul borga |
Re: Under .35 CuIn Hello there, I wonder if an OS fs 26 would be up to the challenge of powering the 1/6 scale cub, I have one kicking around ?............ |
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| 03-18-2016 09:01 AM | ||
| aspeed |
Re: Under .35 CuIn We race the LA .25s, and they are every bit as fast as the old Fox .35 that was around when a lot of the older planes were designed that always said .19 to .35. The LA vibrates a lot less than the old Foxes and Enyas too. There are faster .25s than the LA too, like the Magnum. |
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| 03-18-2016 06:30 AM | ||
| OLD PRAIRIE RED NECK |
Re: Under .35 CuIn Keep it light and a .30 four stroke (with the correct size prop) will fly it fine. Avoid the ASP and Magnum (same engine) .30 4 strokes new or used. A Saito or OS .40 4 stroke would be just fine too. There were lots of good .25 to .30 2 strokes made if you're going the economy route. |
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| 03-17-2016 11:40 AM | ||
| michaely |
Re: Under .35 CuIn hi James, There are lots of new in box and used glow engines, primarily two stroke, available as private sales from other flyers who are part of this forum, at probably a quarter to the third of retail prices. Smaller four strokes - .50 and under - are becoming more difficult find; few if any are being manufactured any more because of the popularity of electric and a used ones are likely be two to three times as expensive as comparably sized used two stroke. Nevertheless such a four stroke would likely have no downside for you, once you get past the greater cost: quieter, muffler - if used, much more easy to totally enclose within the cowl; as an already competent flyer there is less risk to damaging a more fragile two stroke in a crash, more torque for Cub. If you want a used two stroke .30 sized glo, these are plentiful and cheap. I would even say that there are lots of plain bearing .30 sized Enya and O.S. engines sitting in people's basements, with so little demand, that they are rarely even advertised for sale; but if you put in a wanted ad, you will get some very good offers. At a swap meet such a used engine would go for as little as $10 to $15. Ball bearing equipped used motors in this size would be only a bit more expensive. Go through engines for sale category to identify reliable sellers of engines. btw, save a rib template from your build of the Sig clipped wing Cub, in case you want to build the stock length wing; I believe there is no change necessary in the rest plane. A stock length wing plane would be less aerobatic but would have a marginally lighter wing loading and be a bit more of "intermediate trainer" than a fun fly scale. Something to consider, especially if this your first build and may be prone to building a bit heavier than necessary. good luck, |
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| 03-17-2016 09:57 AM | ||
| kip51035 |
Re: Under .35 CuIn A .35 engine on that aircraft is a lot of power. It will takeoff and fly at half throttle. Full throttle takeoffs are a handful. A .25 to a .30 engine would be more reasonable. A .40 4S would be ok, I had two .30 4S engines and they were gutless. The original aircraft flew on a .19 2S. |
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| 03-16-2016 07:09 PM | ||
| Jamessmart24 |
Re: Under .35 CuIn Awesome info guys, thanks for the help. James |
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| 03-16-2016 09:57 AM | ||
| aspeed |
Re: Under .35 CuIn Norvel makes a gas .40 that uses a turbo style plug. (NV Engines) But some people have problems with it, and convert it back to glow. It is a nice simple idea as there is no wires or spark unit. Glow is about the simplest most efficient way IMHO. OS makes pretty good motors, maybe a bit expensive compared to others. They are geared to beginners as they run steady out of the box. AX FX and LA are my choices for OS. Magnum/ASP is fairly good too. There is an XLS .25 and .46. ASP is the same company and there may be a .32 and .36 with that name too. They may be mail order at places like Hobby King or Hobby People. Many hobby shops have stopped stocking glow stuff for whatever reasons. |
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| 03-15-2016 11:26 PM | ||
| Trumpetman |
Re: Under .35 CuIn Quote:
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| 03-15-2016 10:16 PM | ||
| floyd |
Re: Under .35 CuIn I just looked it up on the Sig site and the recommendation is, 2-Stroke .25-.40 (4.1 - 6.0 cc) 4-Stroke .40-.45 (6.0 - 6.5 cc) If you can afford it the 4-Stroke would be a nice choice. I run Straight pipes on most of my Saito 4-Strokes, and they sound nice. Some Cubs because of the short nose end up tail heavy when built. The older Saito 45 and 50 4-Strokes were a little heavier and may help if your plane ends up tail heavy. Cheers Floyd |
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