Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

Electric Weston Magnum video

Reply

Old 04-29-2007, 09:03 PM
  #1  
Rudeboy
Thread Starter
 
Rudeboy's Avatar
 
Join Date: Dec 2002
Location: Kortessem, BELGIUM
Posts: 3,508
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Electric Weston Magnum video

[link=http://www.tanicpacks.com/files/FastPlaneVideo.wmv]E-Magnum[/link]

I love this guys take-off technique
Rudeboy is offline  
Reply With Quote
Old 04-29-2007, 09:20 PM
  #2  
angelrcdesign
My Feedback: (40)
 
Join Date: Feb 2004
Location: Weehawken, NJ
Posts: 544
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Electric Weston Magnum video

What the set up ?
angelrcdesign is offline  
Reply With Quote
Old 04-29-2007, 09:34 PM
  #3  
Rudeboy
Thread Starter
 
Rudeboy's Avatar
 
Join Date: Dec 2002
Location: Kortessem, BELGIUM
Posts: 3,508
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Electric Weston Magnum video

Neu 1521/1.5 (presumably a Y)
Tanic 9S 4350 lipo pack
Castle Creations HV 85 controller
Hercules HBEC ( up to 11S and switchable 5 or 6 volts)
Berg 7 rx by Castle Creations
6 x 9 APC prop

Performance numbers:
RPM in excess of 32,000
Watts in excess if 3400
amps 102 +
thrust 288 oz +
estimated speed 220+
Plane weight 5 1/2 pounds
Rudeboy is offline  
Reply With Quote
Old 04-30-2007, 12:49 AM
  #4  
Kmot
My Feedback: (24)
 
Kmot's Avatar
 
Join Date: Jun 2003
Location: Northridge, CA
Posts: 10,941
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Electric Weston Magnum video

Very impressive! [X(]
Kmot is offline  
Reply With Quote
Old 04-30-2007, 10:03 AM
  #5  
MJD
My Feedback: (1)
 
MJD's Avatar
 
Join Date: May 2003
Location: Orangeville, ON, CANADA
Posts: 8,629
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Electric Weston Magnum video

ORIGINAL: Rudeboy

[link=http://www.tanicpacks.com/files/FastPlaneVideo.wmv]E-Magnum[/link]

I love this guys take-off technique
Boy he nearly planted it. Can you say "torque reaction"? I think I'll pass on trying that with my glow Magnum!
MJD is offline  
Reply With Quote
Old 04-30-2007, 12:04 PM
  #6  
Bob.R
Senior Member
My Feedback: (2)
 
Bob.R's Avatar
 
Join Date: Jun 2004
Location: Canyon Lake, TX
Posts: 788
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Electric Weston Magnum video

Good reflexes!

Rudeboy, any additional info, such as web links, on this project? Any idea how the 220 mph estimated top speed is derived? Looks like landing speed is about half the top speed.
Bob.R is offline  
Reply With Quote
Old 04-30-2007, 09:45 PM
  #7  
freakingfast
Senior Member
My Feedback: (3)
 
Join Date: Jan 2005
Location: Mather, CA
Posts: 2,222
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Electric Weston Magnum video

I tried that kind of take-off with a coroplast delta.....it wasn't pretty[:@]
freakingfast is offline  
Reply With Quote
Old 04-30-2007, 11:43 PM
  #8  
Razor-RCU
Senior Member
My Feedback: (50)
 
Razor-RCU's Avatar
 
Join Date: Mar 2002
Location: Mira Mesa, CA
Posts: 5,405
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Electric Weston Magnum video

Aw spit, every time I try to open and view the link that pane freezes and I get kicked out of all my web pages---
Razor-RCU is offline  
Reply With Quote
Old 05-05-2007, 10:52 AM
  #9  
Strykaas
Senior Member
 
Join Date: Mar 2003
Location: New York, NY
Posts: 4,571
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Electric Weston Magnum video

Awesome, but can you imagine the price of that setup ??

Razor,
Download the file and try "Media Player classic" @ http://sourceforge.net/projects/guliverkli/
It might help you.
Strykaas is offline  
Reply With Quote
Old 05-05-2007, 01:34 PM
  #10  
Isaac F
Senior Member
 
Isaac F's Avatar
 
Join Date: Dec 2001
Location: Panama Republic. of Panama , PANAMA
Posts: 387
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Electric Weston Magnum video

ORIGINAL: Strykaas
Awesome, but can you imagine the price of that setup ??
I was going to say the same! How much it cost that set up? Just the battery is like $300.oo
[X(]

Isaac
Isaac F is offline  
Reply With Quote
Old 05-05-2007, 02:21 PM
  #11  
Rudeboy
Thread Starter
 
Rudeboy's Avatar
 
Join Date: Dec 2002
Location: Kortessem, BELGIUM
Posts: 3,508
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Electric Weston Magnum video

The powersystem works out to about 1000 USD... battery will be about half of that...
Rudeboy is offline  
Reply With Quote
Old 05-05-2007, 02:30 PM
  #12  
Isaac F
Senior Member
 
Isaac F's Avatar
 
Join Date: Dec 2001
Location: Panama Republic. of Panama , PANAMA
Posts: 387
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Electric Weston Magnum video

ORIGINAL: Rudeboy
The powersystem works out to about 1000 USD... battery will be about half of that...

There is nothing like the smell of nitro


Isaac
Isaac F is offline  
Reply With Quote
Old 05-05-2007, 05:58 PM
  #13  
Strykaas
Senior Member
 
Join Date: Mar 2003
Location: New York, NY
Posts: 4,571
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Electric Weston Magnum video

Isaac, at this price, I would say "kero"
Strykaas is offline  
Reply With Quote
Old 05-11-2007, 09:26 AM
  #14  
balsaeater
Senior Member
 
Join Date: May 2005
Location: p, ANDORRA
Posts: 283
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Electric Weston Magnum video

Saw that vidio somewhere else eletric flight forum i think

From memory jhvent time to verify it with motor calc or similarTo get 220 mph at 100% prop efiency with a 9 inch pitch prop I think you need some 35K

alowing for normal 70% rule that reguires closer to 45 k RPM

I figure realy with a 40 mph folowing tailwind and down wind dive doing real speed in the air of 180mph and thats the 220 mph explained


Balsaeater
balsaeater is offline  
Reply With Quote
Old 05-11-2007, 10:11 AM
  #15  
Mike Connor
Senior Member
My Feedback: (5)
 
Mike Connor's Avatar
 
Join Date: Jan 2002
Location: Tulsa, OK
Posts: 2,025
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Electric Weston Magnum video

rpm x pitch speed for a 9 pitch prop at 32000 is 272 mph. A 6" prop on a magnum seems a little small to me and I am sure drag would keep it from getting anywhere close to 272 mph. ThrustHP calculates just under 4 lbs of thrust. I think that take off shows it had more then that considering it is a 5 1/2 lb plane.

Overall I think it is neat and makes me consider electrics. I wonder how well that $1000 motor and battery holds up in a crash?
Mike Connor is offline  
Reply With Quote
Old 05-14-2007, 08:14 PM
  #16  
cncswiss1
Senior Member
 
Join Date: Jul 2004
Location: Indianapolis, IN
Posts: 261
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Electric Weston Magnum video

can someone doppler that setup, it sounds way in excess of 32k
cncswiss1 is offline  
Reply With Quote

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


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service