Cub 049 better than Cox
10-13-2006, 05:49 PM
#1
Thread Starter
Cub 049 better than Cox
I've had it with Cox! Reed valves, fuel pickup, mutilated fingers, the list goes on, so I'm thinking
back to the old Cub 049's I had back in the 60's---not near as much power, but dont need it for
my little put-put biplanes.
Questions--Would the Cub turn an 8 X 4 prop?
--Is there a current supplier of new engines?
back to the old Cub 049's I had back in the 60's---not near as much power, but dont need it for
my little put-put biplanes.
Questions--Would the Cub turn an 8 X 4 prop?
--Is there a current supplier of new engines?
10-13-2006, 05:55 PM
#2
RE: Cub 049 better than Cox
Virginia Hobby Sport sells them. They also sell the Fox FAI .049 which is pretty popular with the NosGas FF folks, and the Brodak 1/2As. All these are front rotors, no reeds.
http://www.virginiahobbysport.com/index.htm
http://www.virginiahobbysport.com/index.htm
10-13-2006, 05:56 PM
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RE: Cub 049 better than Cox
Enya makes 'em, and there's a USA importer too...
http://www.richmondrc.com/shop2/ENY_USA_Retail.html
Sig claims they'll be carrying the Norvels again once they get things sorted out with Norvel.
http://www.richmondrc.com/shop2/ENY_USA_Retail.html
Sig claims they'll be carrying the Norvels again once they get things sorted out with Norvel.
10-13-2006, 08:18 PM
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RE: Cub 049 better than Cox
Oddly enough I'm the exact opposite in my results with the Cox vs Cub wars. I've got two cubs and can't even get the darn things to run off a prime decently let alone run! ! ! !
BUt my Coxs? Generally 4 to 5 flips tops before it at least starts. If it was a finger flip start it may not be running the right WAY but at least it's running and I can stop it and flip it again.
You want a reliable no nonsense starting 049? Then find a couple of Wen Macs with the black steel starter on the front. Those things are only slightly harder to start than an electric motor! ! ! !
BUt my Coxs? Generally 4 to 5 flips tops before it at least starts. If it was a finger flip start it may not be running the right WAY but at least it's running and I can stop it and flip it again.
You want a reliable no nonsense starting 049? Then find a couple of Wen Macs with the black steel starter on the front. Those things are only slightly harder to start than an electric motor! ! ! !
10-13-2006, 09:40 PM
#8
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RE: Cub 049 better than Cox
Excuuuuse me Vic, if you had been paying attention you would know that reedies are my new favorite engine. But if anyone asked - I have one Cub and it is probably only the strangest of flukes that it starts and runs reliably. I must have gotten an "bad" one.
10-13-2006, 09:57 PM
#9
RE: Cub 049 better than Cox
ORIGINAL: BMatthews
Oddly enough I'm the exact opposite in my results with the Cox vs Cub wars. I've got two cubs and can't even get the darn things to run off a prime decently let alone run! ! ! !
BUt my Coxs? Generally 4 to 5 flips tops before it at least starts. If it was a finger flip start it may not be running the right WAY but at least it's running and I can stop it and flip it again.
You want a reliable no nonsense starting 049? Then find a couple of Wen Macs with the black steel starter on the front. Those things are only slightly harder to start than an electric motor! ! ! !
Oddly enough I'm the exact opposite in my results with the Cox vs Cub wars. I've got two cubs and can't even get the darn things to run off a prime decently let alone run! ! ! !
BUt my Coxs? Generally 4 to 5 flips tops before it at least starts. If it was a finger flip start it may not be running the right WAY but at least it's running and I can stop it and flip it again.
You want a reliable no nonsense starting 049? Then find a couple of Wen Macs with the black steel starter on the front. Those things are only slightly harder to start than an electric motor! ! ! !
NorfolkSouthern
10-22-2006, 09:22 PM
#10
RE: Cub 049 better than Cox
ORIGINAL: BMatthews
You want a reliable no nonsense starting 049? Then find a couple of Wen Macs with the black steel starter on the front. Those things are only slightly harder to start than an electric motor! ! ! !
You want a reliable no nonsense starting 049? Then find a couple of Wen Macs with the black steel starter on the front. Those things are only slightly harder to start than an electric motor! ! ! !
NorfolkSouthern
10-22-2006, 10:03 PM
#11
RE: Cub 049 better than Cox
This might be the right combination to answer your question. I wasn't sure if you were aware that OK Cub has a pull-start version, called an .049 Starter. It is an .049B version with a string recoil built in, just before the prop driver hub. They started making them in 1957.
10-23-2006, 01:28 AM
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RE: Cub 049 better than Cox
In a word no. The best an average 049 Cup will do is about 16k on 35-40% nitro. I've get an sample or two of most of them 049X, 049A, 049B, 049D,and an 049R (reed valve) and they are not up to snuff. I am getting 18K out of one of them (guess which one I'm using for early 1/2A nostalgia)
Don't run a Cub at 14k very long they vibrate like crazy, more they're ok. The glow plug is NOT a standard plug, I've got some NOS plugs, they are a 1/4x32 which as a happy co-inceidence fits the 1/4x28 well too. Use a short plug and check the clerance. Hint the head doesn't screw off, it's an interference fit. .Use a head wrench (block like clamp thingy) or take the cylinder off.
All RPM's are done with either a 5-3 Kayson or a 5-3 Black tornado. All of my Cubs start OK they just don't tear your face off.
HTH - Steve B.
Atten bmathews run those cubs in on some 60%! (they like it)
Don't run a Cub at 14k very long they vibrate like crazy, more they're ok. The glow plug is NOT a standard plug, I've got some NOS plugs, they are a 1/4x32 which as a happy co-inceidence fits the 1/4x28 well too. Use a short plug and check the clerance. Hint the head doesn't screw off, it's an interference fit. .Use a head wrench (block like clamp thingy) or take the cylinder off.
All RPM's are done with either a 5-3 Kayson or a 5-3 Black tornado. All of my Cubs start OK they just don't tear your face off.
HTH - Steve B.
Atten bmathews run those cubs in on some 60%! (they like it)
10-23-2006, 12:48 PM
#13
RE: Cub 049 better than Cox
Comparing glow plug sizes between the Wen Mac and Thunder Tiger, indeed they are different sizes. A standard glow plug is longer. I thought they were the same because my clip fit both without any problems. Is there any source of glow plugs for Wen Mac engines? Are they the same as for an O.K. Cub, or are they another one of those rare specialty items?
NorfolkSouthern
NorfolkSouthern
10-23-2006, 01:31 PM
#14
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RE: Cub 049 better than Cox
ORIGINAL: west6008
I've had it with Cox! Reed valves, fuel pickup, mutilated fingers, the list goes on, so I'm thinking
back to the old Cub 049's I had back in the 60's---not near as much power, but dont need it for
my little put-put biplanes.
Questions--Would the Cub turn an 8 X 4 prop?
--Is there a current supplier of new engines?
I've had it with Cox! Reed valves, fuel pickup, mutilated fingers, the list goes on, so I'm thinking
back to the old Cub 049's I had back in the 60's---not near as much power, but dont need it for
my little put-put biplanes.
Questions--Would the Cub turn an 8 X 4 prop?
--Is there a current supplier of new engines?
Ouch, 8-4 is a terrific load for any .049. IMHO your Cubs will overheat and be incredibly finicky on the needle, but perhaps with a couple of head shims and the right fuel and a good touch on the needle?. Maybe a 7-3 is a better choice if you want to swing something big a little slower. Just my $.02. Why isn't there a 6.5 to 7-2 designed for .049s on slow draggy airplanes? Oh yeah, the market size, forgot. [&o]
MJD
10-23-2006, 04:50 PM
#16
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RE: Cub 049 better than Cox
I don't know of any engine which has 1/4 x 28 glow plug threads. 1/4 x 32 is the standard. There were several different very short 1/2A plugs. An extra plug gasket or two will make a modern plug work. My first engine was Cub 049. I got it to run once. Friends had Cubs which started and ran fine. I have a couple of Wen-Macs my wife got at an auction. Got them broken in and they start and run steadily. Plan to use them in sport free flights some day.
10-23-2006, 05:08 PM
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RE: Cub 049 better than Cox
Try virginia hobby sport. They list two varieties of O.K. Cub engines and also offer an add on pull rope starter for them. I have only ordered a very few things from them but service was excellent. The telephone was answered by a knowledgable human--something I've come to really appreciate.
http://www.virginiahobbysport.com/index.htm
http://www.virginiahobbysport.com/index.htm
