OK Cub .049 A
09-11-2003, 06:49 PM
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RE: OK Cub .049 A
Storm:
The OK Cub was, and is, an excellent engine. But the Coxes and Norvels will blow it away.
If you want to build a "Nostalgia" plane have at it. but if you want your plane to fly with "Authority" put the Cub back in the box and use a more modern engine.
Sorry, but that's just the way it is. I have one in the box also.
Bill.
PS: 7500 on a 5x3 is still a bit low. Try a lower % nitro. Five percent was a hot fuel in 1950. wr.
The OK Cub was, and is, an excellent engine. But the Coxes and Norvels will blow it away.
If you want to build a "Nostalgia" plane have at it. but if you want your plane to fly with "Authority" put the Cub back in the box and use a more modern engine.
Sorry, but that's just the way it is. I have one in the box also.
Bill.
PS: 7500 on a 5x3 is still a bit low. Try a lower % nitro. Five percent was a hot fuel in 1950. wr.
09-11-2003, 08:25 PM
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RE: OK Cub .049 A
It was recently posted here that a proper replacement for "original Cox" brand fuel is very high %age glow (25-30%) wwith a high (20+%) oil content. Search for "Cox."
09-12-2003, 01:44 AM
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RE: OK Cub .049 A
Thinking about a 30 in Dakota with 2 channels. I think a cox or norvel would be too much.
Hotter fuel may help. 15% is pretty mild for Cubs. 25% is better.
And YES, either a hot Cox or a Norvel would be gross overkill for a Dakota. A Cox single port cylinder engine like a Baby Bee is fine however. Seen 3 or 4 FF Dakotas with Baby Bees and they aren't grossly overpowered. Just skittish.
09-12-2003, 01:09 PM
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RE: OK Cub .049 A
Original Veco Dakota (24 in.) was designed for the then new O.K. Cub .049. I've flown them on everything from Spitzy's to Baby Bee's. Baby Bee worked real well if you decrease the left thrust shown on the plan. I believe a 30 inch Dakota could easily handle the Cox. BTW, BMJR is now kitting the Dakota F/F with laser parts- Jim
09-13-2003, 11:07 PM
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RE: OK Cub .049 A
as with all the old motors 1/2A's included they really shouldn't be run on the modern fuels. Even today's new 1/2A's still recommend 25% oil and these are high performance jobs. The old Cub will be an old over the hill motor in short order if you continue to use 17% cool power. Use Omega if you must it at least has some castor but really not enough to extend the motors useful life.
Used a lot of Cubs in my youth while not the most potent they were always a snap to start as long as your battery was fresh. Same for the Wen mac's they really needed a hot plug or else you heard the old cry'When's it going to start....MAC.
Dennis
Used a lot of Cubs in my youth while not the most potent they were always a snap to start as long as your battery was fresh. Same for the Wen mac's they really needed a hot plug or else you heard the old cry'When's it going to start....MAC.
Dennis
07-15-2004, 10:49 AM
#11
RE: OK Cub .049 A
.. So which is better- bumping an antique thread up or starting a fresh one?
In any case, in my quest for the cheapest engine possible I looked at the cub web site and found they are planning to have twins!
[link=http://okengines.com/news.shtml]ok cub mfg.[/link]
How cool will that look in a J3's cowl?
hope it's cheap.
In any case, in my quest for the cheapest engine possible I looked at the cub web site and found they are planning to have twins!
[link=http://okengines.com/news.shtml]ok cub mfg.[/link]
How cool will that look in a J3's cowl?
hope it's cheap.
07-16-2004, 12:47 AM
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RE: OK Cub .049 A
I just checked out the OK web site, and read their .049B was "the longest selling model airplane engine ever" That's great, ya gotta love it! I sure hope OK goes through with making those twins available, too cool! -I'd buy one just because...
Nick
Nick
07-16-2004, 04:54 AM
#13
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RE: OK Cub .049 A
I had no idea the OK Cub was still being made. Just asked if I could have one please. Sounds just right for my sport "floaters". Hope they got one left for me. Thanks McLintock for the link.
07-16-2004, 06:04 AM
#14
RE: OK Cub .049 A
ORIGINAL: Stormovic
Thinking about a 30 in Dakota with 2 channels. I think a cox or norvel would be too much.
Thinking about a 30 in Dakota with 2 channels. I think a cox or norvel would be too much.
Don't remember other details. Might be a place to start.
George
