Delta & Flying Wings Discuss electric powered delta (flying wing) style aircraft here.

Another F27 w/ EDF Power

Old 03-25-2006, 08:51 AM
  #1  
Kosh
Super Contributor
Thread Starter
 
Kosh's Avatar
 
Join Date: Jan 2006
Location: Bothell, Washington (by Seattle)
Posts: 3,445
Smile Another F27 w/ EDF Power

I have seen a few others on here and had to try one for myself. The EDF55 motor and nacelle are from a GWS A-10. Had a brushless Park400 inrunner 2025-4200 I wanted to use in something other than a slow stick so in it went. While I haven't tried this yet it has plenty of thrust to fly the plane if I can get it up on step. I didn't think about it too much when mounting the nacelle and it has a slight downward angle at about 5 degrees. After thinking this over I would want it pointed up a few degrees right? Not really even sure if it will make a big difference one way or another.
The 2025-4200 has a good heatsink with some great thermal past to dissipate the heat I hope. A Jeti 18+ ESC and TP-2100 3 cell battery should handle the amp draw ok. The only mods were to cut the intakes and remove some foam from the battery bay and where the nacelle rests.
Now I now this wont be a speed demon but I wanted something different and if it flys ok on 2/3rd throttle I will be a happy camper.
By the way, MY Navy has F-27s in it so why doesn't your?
Attached Thumbnails Click image for larger version

Name:	F27a.jpg
Views:	295
Size:	103.5 KB
ID:	9140   Click image for larger version

Name:	F27b.jpg
Views:	263
Size:	87.5 KB
ID:	9141   Click image for larger version

Name:	F27c.jpg
Views:	241
Size:	72.6 KB
ID:	9142   Click image for larger version

Name:	F27d.jpg
Views:	218
Size:	67.4 KB
ID:	9143  
Kosh is offline  
Old 03-28-2006, 07:32 AM
  #2  
Kosh
Super Contributor
Thread Starter
 
Kosh's Avatar
 
Join Date: Jan 2006
Location: Bothell, Washington (by Seattle)
Posts: 3,445
Default

Well the weather was not the best but I did get to test it and WOW.
I did 2 short flights with the second on video here. While getting it trimmed out I had MAJOR wing flutter, I mean this thing looked like a friggin humming bird on a flyby at 50mph ... lol
I took it easy for the video and have imbeded C/F rods in the LE and hope that fixxes some of the problem. Glass coated balsa control areas I guess is sure to come. Never went beyond 2/3 throttle even for vertical climb.
This looks like just what I was after with a few minor tweeks.
Please right click in links and "Save Targer As"

http://www.cascadeap.com/F27EDFa.wmv Dailup 3.45 MB

http://www.cascadeap.com/F27EDF.wmv Hi Speed 19.5 MB

Last edited by Kosh; 03-28-2006 at 07:54 AM.
Kosh is offline  
Old 03-28-2006, 02:01 PM
  #3  
Crash Test Dummy
Super Contributor
 
Crash Test Dummy's Avatar
 
Join Date: Aug 2005
Location: Sugar Grove
Posts: 2,748
Default

Kosh,

Lookin good. I have thought about doing a EDF Stryker but just have'nt got around to it. It was a good idea to use the GWS A-10 nacel with the EDF55. Did you change the thrust angel before your maiden?

CTD
Crash Test Dummy is offline  
Old 03-28-2006, 09:25 PM
  #4  
Kosh
Super Contributor
Thread Starter
 
Kosh's Avatar
 
Join Date: Jan 2006
Location: Bothell, Washington (by Seattle)
Posts: 3,445
Default

CTD, I didn't change anything and flew it just as in the photos. I guess the thrust line is not as important when using a EDF. I just V sanded the foam where the nacel lays and used some 20 minute epoxy to mount it.
Other uses besides scarring the heck out of the cat include, Its great for dusting the house and makes a fair leaf blower.
Kosh is offline  
Old 03-31-2006, 06:46 AM
  #5  
Crash Test Dummy
Super Contributor
 
Crash Test Dummy's Avatar
 
Join Date: Aug 2005
Location: Sugar Grove
Posts: 2,748
Default

LOL, I'm going to have to try one of those some day soon. For sure I'll do one B-4 fall, to help with leaf blowing. LOL.

CTD
Crash Test Dummy is offline  
Old 04-25-2006, 05:41 AM
  #6  
Kosh
Super Contributor
Thread Starter
 
Kosh's Avatar
 
Join Date: Jan 2006
Location: Bothell, Washington (by Seattle)
Posts: 3,445
Default

So I added some landing gear to it with the rear from a BN2 and the front is just a 1/2A setup. Nose gear steering is with rudder control and it worked very good so far. Now remember down thrust I was wondering about before? It seems that anything above 1/3 throttle will lift the rear tires off the ground leaving the nose wheel still firmly planted. After a little testing I was able to run the throttle up slowly to get the ground speed needed for takeoff. About 80 to 90 feet of runway was needed but it did work. Touch and go's were very easy once airborne and the gear even held up fine on grass landings. While I like this plane the nacelle is pretty draggy and I was thinking of just using the 2025-4200 w/ a 3x3 direct drive prop.
Should be plenty of ground clearance for it to work OK with landing gear.
Any thoughts on this setup?
Attached Thumbnails Click image for larger version

Name:	LG.jpg
Views:	185
Size:	57.3 KB
ID:	10467   Click image for larger version

Name:	LG1.jpg
Views:	198
Size:	48.4 KB
ID:	10468  
Kosh is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Destroyer of airplanes
Power Systems
8
05-24-2008 09:02 PM
mbt1760
Electric Ducted Fan Jets
13
11-12-2007 02:10 PM
Chris44
General Electric Discussions
4
08-23-2007 01:52 PM
Grumman
Electric Ducted Fan Jets
17
03-21-2007 12:42 PM
Dirk
Electric Ducted Fan Jets
54
07-10-2006 07:50 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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


Quick Reply: Another F27 w/ EDF Power


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.

Page generated in 0.12381 seconds with 20 queries