Best 70mm Ducted Fan Unit - Page 2 - RC Groups
Thread Tools
Jan 13, 2010, 09:18 AM
Team White Llama!
gundamnitpete's Avatar
The lander rotors are wemo copies. I've ran my wemo's and HET's to 60,000 rpm out of the box, I don't know how much power a lander rotor can take. Although if your just sport flying and not pushing 2kw through them, I think they'd be fine.
Sign up now
to remove ads between posts
Jan 13, 2010, 05:46 PM
Registered User
Living in Germany I ordered one on Monday this week at wemotec.com and got it one day later - no idea about shipment costs to US..

One of the guys in Germany compared 4 impellers. Here the results:
http://www.rc-network.de/forum/showt...t=85850&page=3

Translated:

Trust at 1000W:
HET 6903 (copy of Schuebeler DS30dia): 975W, 1675g 1,72g/W
HET 6904: 1025W, 1700g, 1,66g/W
Wemotec MF 480: 1025W, 1700g, 1,66g/W
WM 400: 1030W, 1600g 1,55g/W
"Smoothness":
  1. HET 6903 (copy of Schuebeler DS30dia)
  2. WM 400
  3. MF480
  4. HET 6904

Rainer
Jan 13, 2010, 10:41 PM
Registered User

Exit airspeed matters too


I believe that guy that published these data has left out the exit speed too.

Anthony

Quote:
Originally Posted by husel
Living in Germany I ordered one on Monday this week at wemotec.com and got it one day later - no idea about shipment costs to US..

One of the guys in Germany compared 4 impellers. Here the results:
http://www.rc-network.de/forum/showt...t=85850&page=3

Translated:

Trust at 1000W:
HET 6903 (copy of Schuebeler DS30dia): 975W, 1675g 1,72g/W
HET 6904: 1025W, 1700g, 1,66g/W
Wemotec MF 480: 1025W, 1700g, 1,66g/W
WM 400: 1030W, 1600g 1,55g/W
"Smoothness":
  1. HET 6903 (copy of Schuebeler DS30dia)
  2. WM 400
  3. MF480
  4. HET 6904

Rainer
Jan 14, 2010, 08:28 AM
AKA Terry Till
ex-racr's Avatar
Quote:
Originally Posted by velocity-rc
I believe that guy that published these data has left out the exit speed too.

Anthony
-The data is from February 2007(!) This is with the Mk 1 rotor. Hopefully this weekend I can do a few tests with the MK 2 and compare. Hopefully


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Sold WeMoTec Mini 480 Ducted Fan Unit!! xtremeRCpilot Aircraft - Electric - Jets (FS/W) 2 Nov 12, 2009 11:53 AM
Wanted 70mm fan unit with or without motor gotboostedvr6 Aircraft - Electric - Jets (FS/W) 9 Nov 10, 2009 02:31 AM
For Sale brushless 70mm fan unit hobby lobby f-16 abapitcher712 Aircraft - Electric - Jets (FS/W) 3 Nov 04, 2009 01:47 PM
Sold Aveox brushless motor, Aveox 48amp ESC & Wemotec HW609 ducted fan unit smokeytbear Aircraft - Electric - Power Systems (FS/W) 1 Oct 25, 2009 11:40 AM
New Product New !! 70mm Electric Ducted Fan Unit AirPower RC Electric Ducted Fan Jet Talk 25 Jun 29, 2006 02:51 PM