Go Back   Knife Edge > RealFlight - Designer's Corner > RealFlight 7 - Designer's Corner
Use of this site is subject to our Terms of Use. | Technical Support is available from Great Planes Software Support.

Reply
 
Thread Tools Rating: Thread Rating: 2 votes, 5.00 average. Display Modes
  #1  
Old 05-23-2015, 10:48 AM
legoman's Avatar
legoman legoman is online now
Registered User
 
Join Date: Feb 2011
Location: SW, Florida
Posts: 1,540
TU-95 Build

This was the aircraft that I have wanted to do for a long time. Some one said that they would build one aircraft for me around/just before I started my first model. He also wanted to fly one and I gave him the "excuse" to start. Fast forward three years, he has had health and computer issues. I told him I would finish the TU-95. and here is what I have so far.

polys 2556
tris 5298
Attached Images
File Type: jpg TU-95 01.jpg (15.0 KB, 37 views)
__________________
Even pigs and bricks will fly with enough thrust.
Reply With Quote
  #2  
Old 05-23-2015, 10:04 PM
Robert Willis Robert Willis is offline
Registered User
 
Join Date: Dec 2000
Location: Houston, Texas USA
Posts: 141
The render looks good. I was looking at the www.bomberfieldusa.com web site and came across some pictures of a RC model that was built.


http://www.bomberfieldusa.com/bb-web...le-tu95-qbearq
Reply With Quote
  #3  
Old 05-23-2015, 11:06 PM
csgill75's Avatar
csgill75 csgill75 is offline
Registered User
 
Join Date: Mar 2009
Location: Florence, Alabama
Posts: 3,418
I have seen a video of a bear, but it was electric and had the counter rotating propellers. Looks really good at low RPM.


https://youtu.be/Hu9HuUoYyRs

Last edited by csgill75; 05-23-2015 at 11:09 PM.
Reply With Quote
  #4  
Old 05-24-2015, 08:06 PM
legoman's Avatar
legoman legoman is online now
Registered User
 
Join Date: Feb 2011
Location: SW, Florida
Posts: 1,540
It will be big and electrically powered. 1/8 scale and 4 hacker A150-10s for power custom props have been built. However If I can get Variable pitch props to look right then a turboprop, the Jakadosky Pro X, is in order.
__________________
Even pigs and bricks will fly with enough thrust.
Reply With Quote
  #5  
Old 05-24-2015, 08:29 PM
csgill75's Avatar
csgill75 csgill75 is offline
Registered User
 
Join Date: Mar 2009
Location: Florence, Alabama
Posts: 3,418
Are you going to have Contra-Rotating Motors on this? That would be 8 props and 32 blades. There are some large Twin motor setups that might work and are easily simulated.
Reply With Quote
  #6  
Old 05-24-2015, 08:42 PM
brields's Avatar
brields brields is offline
Registered User
 
Join Date: Aug 2011
Posts: 998
That would be tough on computers. as much as I love countra-rotating props, I advise just one prop per engine.
__________________

Last edited by brields; 05-25-2015 at 01:18 AM.
Reply With Quote
  #7  
Old 05-24-2015, 09:12 PM
csgill75's Avatar
csgill75 csgill75 is offline
Registered User
 
Join Date: Mar 2009
Location: Florence, Alabama
Posts: 3,418
It won't be tough it isn't a lot of polies in a propeller. There's a model with 8 4-blade propellers and no performance hits whatsoever. Hughes H-4 Hercules is one for example. Remember that every thing is still under the poly count limit so it will be just fine.
Reply With Quote
  #8  
Old 05-27-2015, 03:14 PM
legoman's Avatar
legoman legoman is online now
Registered User
 
Join Date: Feb 2011
Location: SW, Florida
Posts: 1,540
My props and a rough model for physics testing and constant speed prop tuning. What I had was under 8000 tri's so I exported the model to have a more accurate test bed than a "modified" B-52 guinea pig. I was able to down size the engine to a Jakadofsky Pro instead of a Pro X. The engine runs at 3200 RPM or idle the airspeed is adjusted via prop pitch.
Attached Images
File Type: jpg ScreenShot1432753092.jpg (495.0 KB, 26 views)
File Type: jpg ScreenShot1432753145.jpg (495.5 KB, 23 views)
File Type: jpg ScreenShot1432754020.jpg (378.4 KB, 23 views)
__________________
Even pigs and bricks will fly with enough thrust.
Reply With Quote
  #9  
Old 05-29-2015, 06:31 AM
brields's Avatar
brields brields is offline
Registered User
 
Join Date: Aug 2011
Posts: 998
Are those custom props?
__________________
Reply With Quote
  #10  
Old 05-29-2015, 11:19 AM
legoman's Avatar
legoman legoman is online now
Registered User
 
Join Date: Feb 2011
Location: SW, Florida
Posts: 1,540
Quote:
Originally Posted by brields View Post
Are those custom props?
Yes it is here is a picture
Attached Images
File Type: jpg prop.jpg (8.2 KB, 26 views)
__________________
Even pigs and bricks will fly with enough thrust.
Reply With Quote
  #11  
Old 05-29-2015, 10:55 PM
brields's Avatar
brields brields is offline
Registered User
 
Join Date: Aug 2011
Posts: 998
Nice!
__________________
Reply With Quote
  #12  
Old 05-30-2015, 05:47 PM
legoman's Avatar
legoman legoman is online now
Registered User
 
Join Date: Feb 2011
Location: SW, Florida
Posts: 1,540
To the people who are concerned about performance issues with 8 engines 32 propeller blades. I have made a turbo "fan" c-17 made with turbo prop so I could simulate a twin spool turbine. It has 32 blades per propeller for a total of 128 blades. With no/little frame rate drop. I used the stock mustang prop I included a picture for proof.

Note propeller blade were enlarged to show through the nacelle
Attached Images
File Type: jpg C-17 Fan Blade.jpg (10.5 KB, 13 views)
__________________
Even pigs and bricks will fly with enough thrust.

Last edited by legoman; 05-30-2015 at 05:53 PM.
Reply With Quote
  #13  
Old 05-30-2015, 10:13 PM
uncle twist's Avatar
uncle twist uncle twist is online now
Registered User
 
Join Date: Feb 2010
Posts: 2,118
Gotta love your signature Legoman. I believe it started with the F-4 Phantom, keep up the great work..
__________________
Why do today, what you can put off `till tomorrow
Reply With Quote
  #14  
Old 05-31-2015, 12:38 PM
legoman's Avatar
legoman legoman is online now
Registered User
 
Join Date: Feb 2011
Location: SW, Florida
Posts: 1,540
Quote:
Originally Posted by uncle twist View Post
Gotta love your signature Legoman. I believe it started with the F-4 Phantom, keep up the great work..
Thanks
__________________
Even pigs and bricks will fly with enough thrust.
Reply With Quote
  #15  
Old 05-31-2015, 12:42 PM
legoman's Avatar
legoman legoman is online now
Registered User
 
Join Date: Feb 2011
Location: SW, Florida
Posts: 1,540
Yuck, this is a lot of stuff shoved in to one spot
Attached Images
File Type: jpg Tu-95 exhaust.jpg (480.6 KB, 18 views)
__________________
Even pigs and bricks will fly with enough thrust.
Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 10:38 PM.