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Old Jan 20, 2014, 07:16 PM
Nick
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United States, AL, Hoover
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Ace Littlest Stick Motor Help

I'm looking for a Cox .020 engine to put on my Ace Littlest Stick. I have many years glow experience but none with these engines.
Looking around I see some listed as .020 Tee Dee and others listed as .020 Pee Wee. Whats the difference?

Thanks

Nick
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Old Jan 20, 2014, 07:37 PM
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Forest, Va
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Basically, the TD is a high performance and the Pee Wee is a sport. Pee Wee is more than enough for the Littlest Stick. I believe a TD .010 is the ideal set up.

John
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Old Jan 20, 2014, 07:54 PM
Nick
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Thanks
Yea it calls for a .010 but they are harder to find and cost a lot more than a .020.

Nick
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Old Jan 20, 2014, 08:06 PM
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Back in the day the TD.10 helped keep things light these days with the lighter gear and a 2S lipo battery in the nose will allow vertical with a Pee Wee. I flew one with a .10 and rudder / elevator futaba mini servos back then still weighed in over 23g per servo power for the rx 4 cell 350mah nicads 20g plus rx. Now you can go 4ch with a throttle sleeve on the Pee Wee for 1/3 rd the weight of the old 2ch set up.
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Old Jan 20, 2014, 10:43 PM
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Major differences:
1) The PeeWee .020 is a reed valve engine.
2) The TD .020 is a rotory valve engine.
3) The PeeWee .020 normally has a built in tank.
4) The TD .020 normally has a tank mount, or can use a small external tank.
5) The TD .020 has almost twice the HP of a PeeWee, according to past published charts.
6) The TD is more expensive than the PeeWee on the used market. The cheapest I got a new TD .020 was $50 from a consignment at a hobby shop, and that's cheaper than used ones on eBay. The cheapest I got a PeeWee was $6.00 on eBay.
7) PeeWee .020's appear about five times more often on eBay than TD .020's do.

Those are my observations.
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Old Jan 20, 2014, 11:22 PM
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Never built a Littlest Stik, but years ago we did fly a Peck Mini-Bell on both the Pee Wee and Tee Dee .020 engines. The Mini-Bell is a little larger than the Littlest Stick and the Pee Wee flew it around OK--not spectacular, but OK. We then mounted the Tee Dee and that airplane turned into a whole different breed of cat, i.e., things got very lively. My advice? Try it with the Pee Wee first.
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Old Jan 20, 2014, 11:48 PM
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TD .10 3x1.2 prop vs Pee Wee with a 4.5x2 big difference in thrust. I have 4 TD.10's and 5 TD .20 with 3 exhaust throttles yes big difference in power. But like I said source a Pee Wee on ebay with a exhaust throttle you can add a hopper tank for longer runs easy to do or fab a extension ring for the existing tank. You can fab a sheet metal strap type exhaust throttle I have 1 and it works fine. I have posted a pic of it on this forum
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Old Jan 21, 2014, 11:31 AM
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Canada
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Take some care;
Pee Wee 020's ...were (in My hands seriously unreliable engines.
Hard to get running and even then gave iffy runs. A fairly common complaint with the things.
TD 020 was a much nicer, far more user friendly motor
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Old Jan 21, 2014, 11:39 AM
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I've always had good luck with the Cox .020, as long as the fuel was fresh and filtered. Both the Pee Wee and Tee Dee like at least 20% nitro and always make sure your fuel contains castor oil. This topic has been beaten into submission in other threads, but I thought it deserved another beating....
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Old Jan 21, 2014, 11:41 AM
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I agree with Bare... TD is the way to go if you can locate one and afford it. Interesting side note is that both engines used the same cylinder/piston. There were no changes to the TD cylinder.

George
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Old Jan 21, 2014, 12:20 PM
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I have struggled a lot with the peewee too. I think the tank might heat up during a run or something, and the needle therefore needs constant adjustment in order to run out a full tank.

On diesel it is much more reliable tough, and can it can pull a decent prop without any problem.
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Old Jan 21, 2014, 12:32 PM
Nick
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United States, AL, Hoover
Joined May 2012
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Thanks for all the information guys, wow.
I want the Ace Littlest Stick to fly fast and loud, like old times. Nobody at my field has ever seen one nor have they ever heard a small Cox engine run and we don't have any noise restrictions. I want that screaming bumble bee sound. I plan to put some small lightweight servos and receiver in it.
The problem is I don't want to get a loan from the bank to buy a small Cox engine, LOL.
I was looking at this one on Ebay. It looks new but like its covered in balsa dust. The guy said it was a .020 Tee Dee.
Could some of y'all look at it and see what you think?
One other question where can I buy glow heads for it. I'm just playing around with this Littlest Stick so I don't want to spend a ton of money but I do want to get it finished.
The ebay listing is here

http://cgi.ebay.com/ws/eBayISAPI.dll...:X:RTQ:US:1123

Thanks
Nick
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Old Jan 21, 2014, 02:37 PM
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Yes good TD .010 engine with a 3in prop - just wood dust has blessed it. I would buy it.
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Old Jan 21, 2014, 02:42 PM
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Quote:
Originally Posted by Nicksbbq View Post
Thanks for all the information guys, wow.
I want the Ace Littlest Stick to fly fast and loud, like old times. Nobody at my field has ever seen one nor have they ever heard a small Cox engine run and we don't have any noise restrictions. I want that screaming bumble bee sound. I plan to put some small lightweight servos and receiver in it.
The problem is I don't want to get a loan from the bank to buy a small Cox engine, LOL.
I was looking at this one on Ebay. It looks new but like its covered in balsa dust. The guy said it was a .020 Tee Dee.
Could some of y'all look at it and see what you think?
One other question where can I buy glow heads for it. I'm just playing around with this Littlest Stick so I don't want to spend a ton of money but I do want to get it finished.
The ebay listing is here

http://cgi.ebay.com/ws/eBayISAPI.dll...:X:RTQ:US:1123

Thanks
Nick
The price is right so far It needs a clean-up but might be OK otherwise, some Cox .020 parts can be bought from Cox International. The Pee-Wee and TD .020 uses the same cyl/piston and also glow head:
http://coxengines.ca/cox-020/
The original manual from Cox is also here:
http://coxengines.ca/engine-and-fuel-guides.html
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Old Jan 21, 2014, 02:46 PM
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Yes you can still get spare .10 glow plugs It is a the rare .010 just dont tell him that lol...buy it first to confirm size. I compared to my .10's and .020 TD the screw groove in the tank matches the .010. The .020 is longer thinner in appearance. Interesting 3 fin glow plug.
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Last edited by Amp Abuser; Jan 21, 2014 at 02:55 PM.
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