JMB MB339 composite 1:6 PNP
#27
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Depending on your total elevator travel but you can safely start with 3% down elevator. Also note that if you have reduced flap speed (this is what i did) dont forget to set the elevator mix speed at the same speed rate to avoid pitching when you switch to full flaps.
Take off Flap (1st notch) doesn't need compensation ( at least on mine...)
Hope this helps.
Take off Flap (1st notch) doesn't need compensation ( at least on mine...)
Hope this helps.
#28
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Thread Starter
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here you go, I found the cockpit image file (printed it it 13x18cm and cut by hand)
https://www.thingiverse.com/thing:5137073
![](https://cimg6.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/2000x1504/kokpit1_print_375dee958d399476f9fb789c91a93204e7cda528.jpg)
Also got k102 as I was planning for almost a year now.. much lighter, smaller...
Compared to my k80(same size as k100g2)
advancement in 7 years is amazing!
old is 26% longer 15% wider 40% heavier!!
and new one has 25% more thrust
test benched today ..... well not bench but ok
![](https://cimg9.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/2000x1504/20230203_145714_5301bd2291c8c848ed43d8b9165a0c887cc193ba.jpg)
![](https://cimg7.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/720x552/k80_37cd144550cd6435c04c2e552fca9537dd4a627b.jpg)
![](https://cimg8.ibsrv.net/gimg/www.rcuniverse.com-vbulletin/833x604/k102_64510010c81b5c2cb572b81a5cea3a45bbc9b78c.jpg)
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dr.tom (02-21-2023)
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Viper1GJ (07-09-2023)
#44
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![Default](images/icons/icon1.gif)
Hi there
I have read a lot of this nice plane and a friend and me decided to go for it![Smile](images/smilies/smile.gif)
A few days ago I finished the build.
I must say that I like the quality of this kit very much. The wood parts are more or less ok, I only reinforced the thread positions by adding wood and made a new electronic tray out aircraft ply wood.
I'd like to credit Dr. Tom for his very nice cockpit and for providing the file to print it.
I designed a few parts to make my life easier...recessed MR30F holder for elevator servo and front wheel cover with integrated battery tray.
My setup is as follows
TX: Powerbox Core
RX: Powerbox Mercury
Lights: Unilight Kit for MB339 2m
Turbine: Xicoy X120
Thrust tube: Akatec (238gr), specialy made to move the X120 as far as possible to the front
Fuelbag: Norbert Trost 3L, usable capacity approx 2.2L
Dry weight: 8795gr (without drop tanks)
COG: 142mm
Looking forward fpr the maiden flight :-)
I have read a lot of this nice plane and a friend and me decided to go for it
![Smile](images/smilies/smile.gif)
A few days ago I finished the build.
I must say that I like the quality of this kit very much. The wood parts are more or less ok, I only reinforced the thread positions by adding wood and made a new electronic tray out aircraft ply wood.
I'd like to credit Dr. Tom for his very nice cockpit and for providing the file to print it.
I designed a few parts to make my life easier...recessed MR30F holder for elevator servo and front wheel cover with integrated battery tray.
My setup is as follows
TX: Powerbox Core
RX: Powerbox Mercury
Lights: Unilight Kit for MB339 2m
Turbine: Xicoy X120
Thrust tube: Akatec (238gr), specialy made to move the X120 as far as possible to the front
Fuelbag: Norbert Trost 3L, usable capacity approx 2.2L
Dry weight: 8795gr (without drop tanks)
COG: 142mm
Looking forward fpr the maiden flight :-)
#45
Junior Member
Join Date: Jul 2023
Posts: 9
Likes: 0
Received 0 Likes
on
0 Posts
![Default](images/icons/icon1.gif)
Hi there
I have read a lot of this nice plane and a friend and me decided to go for it![Smile](images/smilies/smile.gif)
A few days ago I finished the build.
I must say that I like the quality of this kit very much. The wood parts are more or less ok, I only reinforced the thread positions by adding wood and made a new electronic tray out aircraft ply wood.
I'd like to credit Dr. Tom for his very nice cockpit and for providing the file to print it.
I designed a few parts to make my life easier...recessed MR30F holder for elevator servo and front wheel cover with integrated battery tray.
My setup is as follows
TX: Powerbox Core
RX: Powerbox Mercury
Lights: Unilight Kit for MB339 2m
Turbine: Xicoy X120
Thrust tube: Akatec (238gr), specialy made to move the X120 as far as possible to the front
Fuelbag: Norbert Trost 3L, usable capacity approx 2.2L
Dry weight: 8795gr (without drop tanks)
COG: 142mm
Looking forward for the maiden flight :-)
I have read a lot of this nice plane and a friend and me decided to go for it
![Smile](images/smilies/smile.gif)
A few days ago I finished the build.
I must say that I like the quality of this kit very much. The wood parts are more or less ok, I only reinforced the thread positions by adding wood and made a new electronic tray out aircraft ply wood.
I'd like to credit Dr. Tom for his very nice cockpit and for providing the file to print it.
I designed a few parts to make my life easier...recessed MR30F holder for elevator servo and front wheel cover with integrated battery tray.
My setup is as follows
TX: Powerbox Core
RX: Powerbox Mercury
Lights: Unilight Kit for MB339 2m
Turbine: Xicoy X120
Thrust tube: Akatec (238gr), specialy made to move the X120 as far as possible to the front
Fuelbag: Norbert Trost 3L, usable capacity approx 2.2L
Dry weight: 8795gr (without drop tanks)
COG: 142mm
Looking forward for the maiden flight :-)