mig 15 1/4 scale composite
05-09-2018, 02:32 PM
#307
Turnigy s712G
Hi Mugu
The installed servos are rated at 7kg. Are they enough? The Savox servo SV-1260MG Servo which is almost the same size is rated at 12kg, check here:
http://www.savoxtech.com.tw/eview.as...pg=18&kwd=&m=1
Reuben
The installed servos are rated at 7kg. Are they enough? The Savox servo SV-1260MG Servo which is almost the same size is rated at 12kg, check here:
http://www.savoxtech.com.tw/eview.as...pg=18&kwd=&m=1
Reuben
05-09-2018, 06:43 PM
#308
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Hi Mugu
The installed servos are rated at 7kg. Are they enough? The Savox servo SV-1260MG Servo which is almost the same size is rated at 12kg, check here:
SAVOX
Reuben
The installed servos are rated at 7kg. Are they enough? The Savox servo SV-1260MG Servo which is almost the same size is rated at 12kg, check here:
SAVOX
Reuben
thanks for the link!
05-19-2018, 12:28 PM
#313
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the flaps work smoothly and the brakes are still not working.😊i can’t wait to fly again in 2 weeks!
05-19-2018, 12:46 PM
#314
I guessed it when i see your wing tubes that you will be placing it in the rear.
This is how the first generation CARF Mig-15 had the engine...it makes very big problem in balancing.
It needed more than 3kg in nose to balance correct . Maybe you would like to do a google search about it...it was big problem
http://www.rcuniverse.com/forum/rc-j...-cg-again.html
http://www.rcuniverse.com/forum/rc-j...-released.html
http://www.rcuniverse.com/forum/rc-j...-mig-15-a.html
They changed the design and move engine forward:
http://carf-models.com/files/product/18/2b/e0/12.jpg
MiG-15 Fagot 1:5
" The turbine has been moved forward by considerable 30 cm (12"). This gurantees that less balance lead is required to obtain the correct CG. ."
Now many owners including me we are moving even more forward the engine to eliminate the use of balancing lead.
I flew some Mig15's and the ones with this modification fly 100% better..lighter and less stress to the landing gear..
I can send you photos of the engine frames i made if u r interesting .
Again congratulations to your amazing skills and mig!
Attachment 2229264
Attachment 2229265
This is how the first generation CARF Mig-15 had the engine...it makes very big problem in balancing.
It needed more than 3kg in nose to balance correct . Maybe you would like to do a google search about it...it was big problem
http://www.rcuniverse.com/forum/rc-j...-cg-again.html
http://www.rcuniverse.com/forum/rc-j...-released.html
http://www.rcuniverse.com/forum/rc-j...-mig-15-a.html
They changed the design and move engine forward:
http://carf-models.com/files/product/18/2b/e0/12.jpg
MiG-15 Fagot 1:5
" The turbine has been moved forward by considerable 30 cm (12"). This gurantees that less balance lead is required to obtain the correct CG. ."
Now many owners including me we are moving even more forward the engine to eliminate the use of balancing lead.
I flew some Mig15's and the ones with this modification fly 100% better..lighter and less stress to the landing gear..
I can send you photos of the engine frames i made if u r interesting .
Again congratulations to your amazing skills and mig!
Attachment 2229264
Attachment 2229265
Hello Mugu,
congratulations ! I see you moved the engine as i suggested above.
But in the video it clearly shows it is still tail heavy. Move the engine half way to the nose and change to stronger springs on the main legs . It will get better.
Good Luck!
05-19-2018, 03:14 PM
#315
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I totally agree on moving the engine forward. These migs are prone to getting tail-heavy due to their large tail section and you will spare a lot of dead weight! Also shortening up on the front-wheel leg will help avoiding touching the nose- wheel on landing wich leads to a "bounce". I land the (Carf) MiG with only take-off flaps setting and using the airbrakes to get the speed down. this will ensure a more level approach. I never let the nose drop on landing as you probably will not have elevator enough to bring it back up again.
05-19-2018, 10:39 PM
#316
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l can’t move more forward becouse the pipe for exhaust is to long,now this is final!
05-20-2018, 05:04 AM
#318
I do not know if the aircraft was slowed down before landing or not but it looks to me that there does not seem to be any flaps or airbrakes deployed to reduce speed. Also the flying field did not help either.
05-20-2018, 12:45 PM
#320
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for me is ok like this the engine.
as it is now standard for kits, whoever wants to change more is free choice!😊
