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Cox Engine of The Month
August-2024
balogh's
![](https://i.servimg.com/u/f95/15/46/86/41/1_balo14.jpg)
"Cox TD09 R/C Beast of Burden featuring Kamtechnik head and DIY metallic fuel nipple"
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PAST WINNERS
balogh's
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"Cox TD09 R/C Beast of Burden featuring Kamtechnik head and DIY metallic fuel nipple"
![](https://i.servimg.com/u/f95/15/46/86/41/sponso12.png)
PAST WINNERS
Build Log: Converting a 31" Super Cub to .049 Power (revisited)
Page 1 of 7
Page 1 of 7 • 1, 2, 3, 4, 5, 6, 7
Build Log: Converting a 31" Super Cub to .049 Power (revisited)
I have a foam cub that has seen it's day, so I have decided to give it a new life. Here I will post progress and pictures.
It will be powered by a pre-96 Cox Black Widow, three sub .9g servos, a 300mah lipo and a small ESC to regulate the voltage 4.8v. 2.4ghz RX
It will have a steerable tail wheel for easy taxing, an original Cox Dragonfly throttle/muffler combination. I want to uses wing struts but don't know how yet.
It will be powered by a pre-96 Cox Black Widow, three sub .9g servos, a 300mah lipo and a small ESC to regulate the voltage 4.8v. 2.4ghz RX
It will have a steerable tail wheel for easy taxing, an original Cox Dragonfly throttle/muffler combination. I want to uses wing struts but don't know how yet.
Last edited by microflitedude on Wed Jan 30, 2013 12:09 pm; edited 6 times in total
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
this sounds like a cool prod. you gutting the internals, or are you just replacing the motor?
SS
SS
shell shock- Gold Member
- Posts : 401
Join date : 2011-10-05
Age : 32
Location : Mississauga Ontario, Canada
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
shell shock wrote:this sounds like a cool prod. you gutting the internals, or are you just replacing the motor?
SS
Thanks. I removed the internals, they were on 27mhz and the onboard servos were not very powerful. HOWEVER, I flew it with stock equipment, it seemed to do fine until I folded the wing. Hence the need for throttle, wing struts, etc. The stock board didn't have any extra channels for throttle.
What do you think about servo size?
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
microflitedude wrote:shell shock wrote:this sounds like a cool prod. you gutting the internals, or are you just replacing the motor?
SS
Thanks. I removed the internals, they were on 27mhz and the onboard servos were not very powerful. HOWEVER, I flew it with stock equipment, it seemed to do fine until I folded the wing. Hence the need for throttle, wing struts, etc. The stock board didn't have any extra channels for throttle.
What do you think about servo size?
I think in the 9g range is good.
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
nitroairplane wrote:microflitedude wrote:shell shock wrote:this sounds like a cool prod. you gutting the internals, or are you just replacing the motor?
SS
Thanks. I removed the internals, they were on 27mhz and the onboard servos were not very powerful. HOWEVER, I flew it with stock equipment, it seemed to do fine until I folded the wing. Hence the need for throttle, wing struts, etc. The stock board didn't have any extra channels for throttle.
What do you think about servo size?
I think in the 9g range is good.
I was going to use 6gs, I think I'll use 9gs just to be safe.
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
fwiw, alot of the 9g's servos will take 6 volts. You could go 800 or 1000mAh 2 cell pack that way, and still stay way under the reccommended flying weight and have some zippy, strong servos that you could dial down with a comp radio.
This is a great little regulator that I have used several times. lightweight, thin, dependable, ect.
http://www.amainhobbies.com/product_info.php/cPath/1574_199/products_id/16549/n/Losi-High-Output-5A-Lipo-Regulator-w-Switch
This is a great little regulator that I have used several times. lightweight, thin, dependable, ect.
http://www.amainhobbies.com/product_info.php/cPath/1574_199/products_id/16549/n/Losi-High-Output-5A-Lipo-Regulator-w-Switch
PV Pilot- High Tech Balsa Basher
- Posts : 1854
Join date : 2011-08-11
Age : 57
Location : The ragged end of the Universe.
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
i have to agree, the project im working on is a light weight slow flyer, but better to error on the side of safety. 9g servos will serve you fine. also, make sure they dont generate alot of noise!
shell shock- Gold Member
- Posts : 401
Join date : 2011-10-05
Age : 32
Location : Mississauga Ontario, Canada
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
PV Pilot wrote:fwiw, alot of the 9g's servos will take 6 volts. You could go 800 or 1000mAh 2 cell pack that way, and still stay way under the reccommended flying weight and have some zippy, strong servos that you could dial down with a comp radio.
This is a great little regulator that I have used several times. lightweight, thin, dependable, ect.
http://www.amainhobbies.com/product_info.php/cPath/1574_199/products_id/16549/n/Losi-High-Output-5A-Lipo-Regulator-w-Switch
The plane is already heavy, and I don't want it to fly and land like a pig.
![Laughing](https://2img.net/i/fa/i/smiles/icon_lol.gif)
How long will a 300mah lipo last one the reciever? I'm using a 10a brushed speed controller to bring the voltage down to 4.8v. I have a Dx6i computer radio.
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
microflitedude wrote:PV Pilot wrote:fwiw, alot of the 9g's servos will take 6 volts. You could go 800 or 1000mAh 2 cell pack that way, and still stay way under the reccommended flying weight and have some zippy, strong servos that you could dial down with a comp radio.
This is a great little regulator that I have used several times. lightweight, thin, dependable, ect.
http://www.amainhobbies.com/product_info.php/cPath/1574_199/products_id/16549/n/Losi-High-Output-5A-Lipo-Regulator-w-Switch
The plane is already heavy, and I don't want it to fly and land like a pig.![]()
How long will a 300mah lipo last one the reciever? I'm using a 10a brushed speed controller to bring the voltage down to 4.8v. I have a Dx6i computer radio.
Long enough i'd say but i would go 600 mah i use those in my models.
they are tiny and super light 1s.
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
I was picking up trash along the road, (Friends needed some help) and found some nice plastic strips that I think would look real nice under the wings.
![Very Happy](https://2img.net/i/fa/i/smiles/icon_biggrin.png)
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
nitroairplane wrote:microflitedude wrote:PV Pilot wrote:fwiw, alot of the 9g's servos will take 6 volts. You could go 800 or 1000mAh 2 cell pack that way, and still stay way under the reccommended flying weight and have some zippy, strong servos that you could dial down with a comp radio.
This is a great little regulator that I have used several times. lightweight, thin, dependable, ect.
http://www.amainhobbies.com/product_info.php/cPath/1574_199/products_id/16549/n/Losi-High-Output-5A-Lipo-Regulator-w-Switch
The plane is already heavy, and I don't want it to fly and land like a pig.![]()
How long will a 300mah lipo last one the reciever? I'm using a 10a brushed speed controller to bring the voltage down to 4.8v. I have a Dx6i computer radio.
Long enough i'd say but i would go 600 mah i use those in my models.
they are tiny and super light 1s.
Where do you get those?
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
microflitedude wrote:nitroairplane wrote:microflitedude wrote:PV Pilot wrote:fwiw, alot of the 9g's servos will take 6 volts. You could go 800 or 1000mAh 2 cell pack that way, and still stay way under the reccommended flying weight and have some zippy, strong servos that you could dial down with a comp radio.
This is a great little regulator that I have used several times. lightweight, thin, dependable, ect.
http://www.amainhobbies.com/product_info.php/cPath/1574_199/products_id/16549/n/Losi-High-Output-5A-Lipo-Regulator-w-Switch
The plane is already heavy, and I don't want it to fly and land like a pig.![]()
How long will a 300mah lipo last one the reciever? I'm using a 10a brushed speed controller to bring the voltage down to 4.8v. I have a Dx6i computer radio.
Long enough i'd say but i would go 600 mah i use those in my models.
they are tiny and super light 1s.
Where do you get those?
http://www.amainhobbies.com/product_info.php/cPath/2_375_1482_1571/products_id/180527/n/Great-Plane-1S-600mAh-15C-Li-Po-Battery-Novus-CP-FP-125
but those are over priced i bough 4 for 0.99p each.
(no brand from China)
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
any prog my friend?
shell shock- Gold Member
- Posts : 401
Join date : 2011-10-05
Age : 32
Location : Mississauga Ontario, Canada
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
microflitedude wrote:
It will be powered by a pre-96 Cox Black Widow, three sub .9g servos, a 300mah lipo and a small ESC to regulate the voltage 4.8v. 2.4ghz RX
Dude:
I LOVE it when you write like that!!!!!!!! It"s pure music to the ears.
![Beer Cheers](/users/3015/29/34/60/smiles/1848667513.gif)
SuperDave- Rest In Peace
- Posts : 3552
Join date : 2011-08-13
Location : Washington (state)
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
SuperDave wrote:microflitedude wrote:
It will be powered by a pre-96 Cox Black Widow, three sub .9g servos, a 300mah lipo and a small ESC to regulate the voltage 4.8v. 2.4ghz RX
Dude:
I LOVE it when you write like that!!!!!!!! It"s pure music to the ears.![]()
Thanks Dave, I like it also.
![Friends/Meeting](/users/3015/29/34/60/smiles/3631248740.gif)
![Very Happy](https://2img.net/i/fa/i/smiles/icon_biggrin.png)
Sorry, not much progress. Life has been pretty busy and I don't have a workspace where I can set stuff up for very long. I will try to get some pictures up.
Anyway, I have some glider servos that are very high torque and weigh around 7g. I decided to go with those with some grommets to help with vibrations. Basically I've got the motor attached, servos loosely in, and a plan.
![Wink](https://2img.net/i/fa/i/smiles/icon_wink.gif)
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
Isn't that how all things start.
But I think you should put carbon rod indie the wings to stop the folding. Trust me it works well.
But I think you should put carbon rod indie the wings to stop the folding. Trust me it works well.
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
nitroairplane wrote:Isn't that how all things start.
But I think you should put carbon rod indie the wings to stop the folding. Trust me it works well.
I might try it, the wing is just so thin - the carbon that would fit inside wouldn't do much of anything. I'll also need a new one as the original is trashed. Struts look more scale to me and you can stress them until you rip the wing in half.
![Very Happy](https://2img.net/i/fa/i/smiles/icon_biggrin.png)
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
microflitedude wrote:nitroairplane wrote:Isn't that how all things start.
But I think you should put carbon rod indie the wings to stop the folding. Trust me it works well.
I might try it, the wing is just so thin - the carbon that would fit inside wouldn't do much of anything. I'll also need a new one as the original is trashed. Struts look more scale to me and you can stress them until you rip the wing in half.I want to be able to do some high G maneuvers.
No they cant be that thin can they?
Maybe you could make another set of wings for it out of Balsa or Depron if you line.
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
Here are some pictures, as promised. Notice the big bush tires to adapt to our grassy runway. You're probably thinking an .020 would be a much better option. You're right. Proportions are more like a CL plane.
I just hadn't realized the potential these things have.
![Build Log: Converting a 31" Super Cub to .049 Power (revisited) Hpim8610](https://i.servimg.com/u/f49/16/79/91/70/hpim8610.jpg)
![Build Log: Converting a 31" Super Cub to .049 Power (revisited) Hpim8611](https://i.servimg.com/u/f49/16/79/91/70/hpim8611.jpg)
![Build Log: Converting a 31" Super Cub to .049 Power (revisited) Hpim8612](https://i.servimg.com/u/f49/16/79/91/70/hpim8612.jpg)
![Build Log: Converting a 31" Super Cub to .049 Power (revisited) Hpim8613](https://i.servimg.com/u/f49/16/79/91/70/hpim8613.jpg)
![Shocked](https://2img.net/i/fa/i/smiles/icon_eek.gif)
![Build Log: Converting a 31" Super Cub to .049 Power (revisited) Hpim8610](https://i.servimg.com/u/f49/16/79/91/70/hpim8610.jpg)
![Build Log: Converting a 31" Super Cub to .049 Power (revisited) Hpim8611](https://i.servimg.com/u/f49/16/79/91/70/hpim8611.jpg)
![Build Log: Converting a 31" Super Cub to .049 Power (revisited) Hpim8612](https://i.servimg.com/u/f49/16/79/91/70/hpim8612.jpg)
![Build Log: Converting a 31" Super Cub to .049 Power (revisited) Hpim8613](https://i.servimg.com/u/f49/16/79/91/70/hpim8613.jpg)
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
The bubbles under the fuselage aren't from fuel - they're from holding it too close to the stovetop while trying to remove some hot-melt glue a year ago.
![Shocked](https://2img.net/i/fa/i/smiles/icon_eek.gif)
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
What do you guys think about this pack - it fit nicely in the cargo bay of the plane.
http://coxengines.ca/product.php?productid=369&cat=11&page=1
http://coxengines.ca/product.php?productid=369&cat=11&page=1
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
microflitedude wrote:The bubbles under the fuselage aren't from fuel - they're from holding it too close to the stovetop while trying to remove some hot-melt glue a year ago.![]()
thats funny.
Do you use glue guns a lot?
I do....
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
nitroairplane wrote:microflitedude wrote:The bubbles under the fuselage aren't from fuel - they're from holding it too close to the stovetop while trying to remove some hot-melt glue a year ago.![]()
thats funny.
Do you use glue guns a lot?
I do....
I made the horrible mistake of building a micro EPP biplane with it. It was trash after that, way too heavy. On the other hand, I repaired a 450 3D plane's nose several times, including holding the mount on just with glue. It's great stuff.
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
microflitedude wrote:nitroairplane wrote:microflitedude wrote:The bubbles under the fuselage aren't from fuel - they're from holding it too close to the stovetop while trying to remove some hot-melt glue a year ago.![]()
thats funny.
Do you use glue guns a lot?
I do....
I made the horrible mistake of building a micro EPP biplane with it. It was trash after that, way too heavy. On the other hand, I repaired a 450 3D plane's nose several times, including holding the mount on just with glue. It's great stuff.
Its great stuff and I've built entire models with it.
Especially great for coreflute.
Re: Build Log: Converting a 31" Super Cub to .049 Power (revisited)
Random speculation - I have a bad head gasket.
![Popcorn](/users/3015/29/34/60/smiles/1347041234.gif)
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