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skymaster pc-21

Old 04-29-2016, 12:14 PM
  #201  
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Hi Mich,
thank you for replay.
I did follow SM manual oleolegs, but unfortunately there is nothing says about PC-21 pressure, so I decide to follow the F-16 same wheght, between 105-135. I did 110 for now, later will see OK or.....
Esterday she first time sit on she's legs.


Regards,
Sergey.
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Old 04-29-2016, 10:22 PM
  #202  
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Default skymaster pc-21

good day to all we have finished all tests with elevators rudder and flaps installation etc . following are few pictures as well .
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Last edited by mich-67; 04-29-2016 at 10:25 PM.
Old 04-29-2016, 10:34 PM
  #203  
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Default pc-21

Also we have made final tests etc with the cockpit pilots etc. see the following video

https://youtu.be/RxWOfL8PZXQ
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Old 04-29-2016, 10:42 PM
  #204  
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Sergey .good day i have see the the building of your friend (Volodya rus 23 ) pc-21 looks great.
i do like very much his build ideas and Technics he use .
well is the summer almost on the way ,welcome to Greece to fly all together the pc-21.

we have some great r.c. airfields to fly our jets.

best regards.

Last edited by mich-67; 04-29-2016 at 10:44 PM.
Old 04-29-2016, 10:47 PM
  #205  
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Hi Mich,
we did almost same but decide to do aileron connections as prototype


Flaps road



Rudder


Also rebuld the shelf for nose landing/taxi light, now it's looks more scale ;-)


And some more
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Old 04-29-2016, 10:56 PM
  #206  
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Originally Posted by mich-67
Sergey .good day i have see the the building of your friend (Volodya rus 23 ) pc-21 looks great.
i do like very much his build ideas and Technics he use .
well is the summer almost on the way ,welcome to Greece to fly all together the pc-21.

we have some great r.c. airfields to fly our jets.

best regards.
Mich thank you for invitation, will see!
Now we bit hurry to finish PC before great jet meting/festival RusJet masters in Rostov. Hope to see the new project of Vitaly Robertus. It's going to be since June 10 up to Jun 13.
Welcome to this great meting! (Of course with PC-21).

Last edited by helifox; 04-29-2016 at 11:59 PM.
Old 04-30-2016, 08:10 AM
  #207  
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Dear Sergey ,
I am interesting to attend this event in Rostov along with Argiris Giannetakis. .
Will be a great change for as to meet all of you in person and Mr Vitaly Robertus as well ,
pls send me all relevant details , location hotels airports etc dates .

looking forward to received this info.

best regards / michael
Old 04-30-2016, 08:51 AM
  #208  
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Dear Sergey ,
looks great your pc as well i do like very much the aileron work.

best regards / michael
Old 04-30-2016, 09:24 AM
  #209  
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Thank you.
You also did great job with cockpit, looks like alive!

Regards,
Sergey
Old 04-30-2016, 11:50 AM
  #210  
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Previet Sergey! Very nice work!
How much is the endpoints of your ailerons now?
Old 04-30-2016, 12:14 PM
  #211  
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Originally Posted by DelGatoGrande
Previet Sergey! Very nice work!
How much is the endpoints of your ailerons now?
Kalispera,

We did 25mm Up, 20 mm Down

Kind regards,
Sergey
Old 04-30-2016, 11:59 PM
  #212  
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Hello Sergey!

No ,i mean in your radio,in the "end points" menu .
How much your aileron limits are now with this setup? 100% - 100% ? ... 60% - 80% ?

Spasibo!
Old 05-01-2016, 12:28 AM
  #213  
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Hi George,
Travel limits is 38-47%.
The length of aileron horn- 31mm, servo horn -25mm


Kind regards,
Sergey
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Old 05-01-2016, 02:02 AM
  #214  
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Originally Posted by helifox
Hi George,
Thanks for information, but will try to do inner pushroads as manual sais. Will try to find solution (may be somebody help with pictures). My friend will install JR8911 all around.

Харистополи,

Kind regards,
Sergey
This is what is was trying to say in my previous post.
With 38%-47% end points your aileron servo travel will have very poor resolution in compare to your aileron stick travel.

"When set up for maximum resolution(maximum end points), the control response is much smootherand more closely matches the precise inputs and intentions of the pilot "

http://www.rcflightschool.com/SetupPDFs/Resolution.pdf

Maybe if you try drill a new hole on your servo arm as closer you can to the servo arm center so you can increase your %-% end points .
The your Aileron feeling during flight will improve dramatically .







Old 05-01-2016, 03:17 AM
  #215  
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Originally Posted by DelGatoGrande
This is what is was trying to say in my previous post.
With 38%-47% end points your aileron servo travel will have very poor resolution in compare to your aileron stick travel.

"When set up for maximum resolution(maximum end points), the control response is much smootherand more closely matches the precise inputs and intentions of the pilot "

http://www.rcflightschool.com/SetupPDFs/Resolution.pdf

Maybe if you try drill a new hole on your servo arm as closer you can to the servo arm center so you can increase your %-% end points .
The your Aileron feeling during flight will improve dramatically .
George,
thank's for information, but we check aileron movement - it's looks very smooth (maybe it just first view). Anyway, will check these on maiden, in case will it be uncomfortable will rebuild.
So the PC-21 is not 3D bird, it's should flight as more scale. I hope everything be OK.
On my UltraFlash the same servo travel (39-45%) plus 45 Expo and I like she's flying.

The servo horn has maximum length to be inside wing now, with maximum possible hole from center for pushroads.




Kind regards,
Sergey
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Old 05-01-2016, 09:31 AM
  #216  
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Originally Posted by helifox
George,
thank's for information, but we check aileron movement - it's looks very smooth (maybe it just first view). Anyway, will check these on maiden, in case will it be uncomfortable will rebuild.
So the PC-21 is not 3D bird, it's should flight as more scale. I hope everything be OK.
On my UltraFlash the same servo travel (39-45%) plus 45 Expo and I like she's flying.

The servo horn has maximum length to be inside wing now, with maximum possible hole from center for pushroads.




Kind regards,
Sergey

Hello Sergey,
actually the 3D planes do not have good resolution because of 3D setup.The best knowledge in resolution setup you will find it in precision aerobatic planes like F3A and helicopters.
When you have wide end points ,meaning wide servo travel in compare to the stick travel, then you can experience a superior feeling while flying the plane.

In the SkyMaster F-104 i did hidden links like you i drilled new hole on the servo arm closer to center to gain resolution.I attach you photo.

All the best with your maiden my friend.
Paka from Greece
George
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Old 05-03-2016, 06:29 AM
  #217  
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test flight the PC-21 again yesterday.,


https://www.youtube.com/watch?v=eyLk80M90bI
Old 05-04-2016, 05:32 AM
  #218  
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HI to all,
Today we did weigh PC-21, dry weight with full UAT is 21 kg- well-fed bird :-) (take-off weight will be 22,5).
Frends, what about yours?

Also I think to add pressure to main legs, to be 120PCI (now 110).

Kind regards,
Sergey
Old 05-04-2016, 06:07 AM
  #219  
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https://www.youtube.com/watch?v=YrlGHVUYcGY
Old 05-04-2016, 09:12 AM
  #220  
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WOW! Very nice, thanks for sharing.
Old 05-06-2016, 10:02 AM
  #221  
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Today we did first RunUp of K-60TP, with 5 blades prop is very powerful unit.
The PC-21 almost ready for maiden, keeping fingers are crost it will be soon.....

http://youtu.be/bFJ45v6xJ-M

Kind regards,
Sergey
Old 05-07-2016, 01:59 AM
  #222  
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Sergey good day , soupeb start up , lights looks fantastic as well , I Have the same on my plane.
My is almost ready few things left prior maiden flight .
thanks for sharing.
Old 05-07-2016, 02:33 AM
  #223  
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Hi Mich,
i have a couple question:
- what pressure you put to your PC legs? (I'm afrade 110PCI is too soft)
- what is the dry weight of your bird (expecting take-off weight)?

Thank's
Kind regards,
Sergey
Old 05-07-2016, 04:35 AM
  #224  
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Old 05-07-2016, 05:12 AM
  #225  
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125 pci regarding dry weight I don't know yet keep you posted

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