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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"
![](https://i.servimg.com/u/f95/15/46/86/41/sponso12.png)
PAST WINNERS
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"
![](https://i.servimg.com/u/f95/15/46/86/41/sponso12.png)
PAST WINNERS
z-37 cmelak, rc electric to nitro conversion
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Page 2 of 2 • 1, 2
Re: z-37 cmelak, rc electric to nitro conversion
Perhaps a TD .020 would be a good solution? Light, and very powerful.
Re: z-37 cmelak, rc electric to nitro conversion
Another thing to consider with smaller engines is smaller
Props. Which create much less prop wash over the control
Surfaces.
So nightmare scenario,-
Large plane which by virtue of small engine travels slowly
Through the air, without much prop wash = sluggish response
To controls as well as lacking fun factor.
IMO
Props. Which create much less prop wash over the control
Surfaces.
So nightmare scenario,-
Large plane which by virtue of small engine travels slowly
Through the air, without much prop wash = sluggish response
To controls as well as lacking fun factor.
IMO
![Huh...](/users/3015/29/34/60/smiles/3929217648.gif)
John Goddard- Diamond Member
- Posts : 2447
Join date : 2011-11-24
Age : 60
Location : Leyton North East London
Re: z-37 cmelak, rc electric to nitro conversion
Starting with the fact that I know NOTHING about electric motors, I read that a 100 watt lekkie is equal to an .049, no idea what the wattage of the original motor in this model was, but I'm sure someone here will know.
Just my contribution
Wilf
Just my contribution
Wilf
Ivanhoe- Diamond Member
- Posts : 1752
Join date : 2011-09-30
Location : Northern Ireland
Re: z-37 cmelak, rc electric to nitro conversion
Ivanhoe wrote:Starting with the fact that I know NOTHING about electric motors, I read that a 100 watt lekkie is equal to an .049, no idea what the wattage of the original motor in this model was, but I'm sure someone here will know.
Just my contribution
Wilf
I have found .049's to have the around the same power as 400/450 size motors.
Re: z-37 cmelak, rc electric to nitro conversion
cool, well i had that airplane weighed at a lhs, it came in at 17.5 oz, i used futaba s3003 and a futaba fp-s148 servos, a futaba nr-4qb 600 mah battery, and a old ner-327x reciever. i know that these electronics are way over kill (all electronics weighed in at 7.50oz) good starting point, im going to get 8g servos, i think ill be in the 12-14oz range
mitchg95- Diamond Member
- Posts : 2103
Join date : 2011-12-19
Age : 29
Location : Geneva, mn, USA
Re: z-37 cmelak, rc electric to nitro conversion
mitchg95 wrote:cool, well i had that airplane weighed at a lhs, it came in at 17.5 oz, i used futaba s3003 and a futaba fp-s148 servos, a futaba nr-4qb 600 mah battery, and a old ner-327x reciever. i know that these electronics are way over kill (all electronics weighed in at 7.50oz) good starting point, im going to get 8g servos, i think ill be in the 12-14oz range
I would use 9g servos, unless the 8g you are talking about have metal gears. Make sure they don't twitch/flutter!
Re: z-37 cmelak, rc electric to nitro conversion
Ivanhoe wrote:Starting with the fact that I know NOTHING about electric motors, I read that a 100 watt lekkie is equal to an .049, no idea what the wattage of the original motor in this model was, but I'm sure someone here will know.
Just my contribution
Wilf
The Tee Dee is about the best Cox at over 75 Watts Wilf.
I think the bees vary from 45 up to about 60.
I dout it was the sort of model anyone ever put at watt meter on but I could be wrong.
![Huh...](/users/3015/29/34/60/smiles/3929217648.gif)
John Goddard- Diamond Member
- Posts : 2447
Join date : 2011-11-24
Age : 60
Location : Leyton North East London
Re: z-37 cmelak, rc electric to nitro conversion
what 9g servo should i use, and are there any preety cheep? i dont have alot of cash right now unforonatly
mitchg95- Diamond Member
- Posts : 2103
Join date : 2011-12-19
Age : 29
Location : Geneva, mn, USA
Re: z-37 cmelak, rc electric to nitro conversion
[quote="John Goddard"]
The Tee Dee is about the best Cox at over 75 Watts Wilf.
I think the bees vary from 45 up to about 60.
I dout it was the sort of model anyone ever put at watt meter on but I could be wrong.
[/quo
I heard the glow engine watts are somehow different to the lekkie watts.
Ivanhoe wrote:Starting with the fact that I know NOTHING about electric motors, I read that a 100 watt lekkie is equal to an .049, no idea what the wattage of the original motor in this model was, but I'm sure someone here will know.
Just my contribution
Wilf
The Tee Dee is about the best Cox at over 75 Watts Wilf.
I think the bees vary from 45 up to about 60.
I dout it was the sort of model anyone ever put at watt meter on but I could be wrong.
![Huh...](/users/3015/29/34/60/smiles/3929217648.gif)
I heard the glow engine watts are somehow different to the lekkie watts.
Re: z-37 cmelak, rc electric to nitro conversion
mitchg95 wrote:what 9g servo should i use, and are there any preety cheep? i dont have alot of cash right now unforonatly
It depends....
I use these in my .049 Cub. They are high torque.
http://www3.towerhobbies.com/cgi-bin/wti0001p?&P=SM&I=LXPAC3
Re: z-37 cmelak, rc electric to nitro conversion
that looks pretty good, thank you, it might be a few weeks before its rtf, would a erc 6g servo work?
mitchg95- Diamond Member
- Posts : 2103
Join date : 2011-12-19
Age : 29
Location : Geneva, mn, USA
Re: z-37 cmelak, rc electric to nitro conversion
mitchg95 wrote:that looks pretty good, thank you, it might be a few weeks before its rtf, would a erc 6g servo work?
Do you have a picture or link?
Re: z-37 cmelak, rc electric to nitro conversion
my family and i are goin out of town for a week, the camera is all packed up so i cant really take pictures right now, i f you were wondering about the erc 6g servo here is the link, http://www.airtekhobbies.com/erc6.html
mitchg95- Diamond Member
- Posts : 2103
Join date : 2011-12-19
Age : 29
Location : Geneva, mn, USA
Re: z-37 cmelak, rc electric to nitro conversion
mitchg95 wrote:my family and i are goin out of town for a week, the camera is all packed up so i cant really take pictures right now, i f you were wondering about the erc 6g servo here is the link, http://www.airtekhobbies.com/erc6.html
Those servos are designed for lightweight park fliers. I would not use them.
Re: z-37 cmelak, rc electric to nitro conversion
ok i will not use them, thx for the input
mitchg95- Diamond Member
- Posts : 2103
Join date : 2011-12-19
Age : 29
Location : Geneva, mn, USA
Re: z-37 cmelak, rc electric to nitro conversion
well i filled the fuselage with spray foam as suggested on the 1st page of this tread, now i have to find the push rods and install the servos ![Smile](https://2img.net/i/fa/i/smiles/icon_smile.gif)
![Smile](https://2img.net/i/fa/i/smiles/icon_smile.gif)
mitchg95- Diamond Member
- Posts : 2103
Join date : 2011-12-19
Age : 29
Location : Geneva, mn, USA
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![-](https://2img.net/i/empty.gif)
» Adam-12 . Electric, Radio Control conversion
» Cox Sky Cruisers Viper RC conversion build
» Electric to Glow conversion
» Jerobee electric to glow conversion nr 2
» JEROBEE electric to TeeDee conversion
» Cox Sky Cruisers Viper RC conversion build
» Electric to Glow conversion
» Jerobee electric to glow conversion nr 2
» JEROBEE electric to TeeDee conversion
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