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JMB MB339 composite 1:6 PNP

Old 11-20-2022, 09:30 PM
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N4S
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How much elevator compensation are you using with full flaps?
Old 01-20-2023, 12:21 AM
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Originally Posted by N4S
How much elevator compensation are you using with full flaps?
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.
Old 02-05-2023, 03:18 AM
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Originally Posted by Agrav8ed
That looks great. I would like to use it if you don't mind. Is there a file for the sticker sheet also?
Thanks,
Tone

here you go, I found the cockpit image file (printed it it 13x18cm and cut by hand)

https://www.thingiverse.com/thing:5137073


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







Old 02-16-2023, 03:19 PM
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Old 02-21-2023, 11:24 AM
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Old 02-21-2023, 01:17 PM
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Thanks for sharing the graphics! I use K102 in mine too and like it.
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dr.tom (02-21-2023)
Old 03-24-2023, 11:47 AM
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Strong crosswind

Old 04-23-2023, 12:56 AM
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Old 04-27-2023, 10:50 AM
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Old 05-07-2023, 01:38 AM
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Old 06-11-2023, 12:45 AM
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Old 06-13-2023, 10:02 AM
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Old 06-19-2023, 12:07 PM
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Old 06-20-2023, 07:34 AM
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Old 07-09-2023, 03:07 AM
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Old 08-02-2023, 10:12 AM
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Old 08-19-2023, 05:33 AM
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Old 08-19-2023, 10:05 PM
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Hi there

trying to post here...need 10 posts to add pictures...
Old 08-19-2023, 10:05 PM
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Hi there
I have read a lot of this nice plane and a friend and me decided to go for it
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 :-)
Old 08-19-2023, 10:05 PM
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Hi there
I have read a lot of this nice plane and a friend and me decided to go for it
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 :-)
Old 08-19-2023, 10:06 PM
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new try
Old 08-19-2023, 10:06 PM
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and again
Old 08-20-2023, 08:35 AM
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Cool videos and pics dr.tom!
Old 08-20-2023, 09:33 AM
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Thanks!



how is yours going?

Last edited by dr.tom; 08-21-2023 at 12:01 AM.
Old 08-20-2023, 11:37 PM
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Originally Posted by dr.tom
Thabks!



how is yours going?
Love that photo

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