Wattflyer RC Network: RC Universe :: RCU Magazine :: RCU Forums :: RCU Classifieds :: RCU User Reviews :: RCU YouTube
Home Who's Online Calendar Today's Posts RealTime Post Spy Mark Forums Read
Go Back   WattFlyer RC Electric Flight Forums - Discuss radio control eflight > Electric R/C Airplanes > Warbird Electrics
Register Members List Wattflyer Extras Articles Search Today's Posts Mark Forums Read Social Groups

Warbird Electrics Discuss e-powered warbirds in here!

Thank you for your support (hide ads)
Reply
 
Thread Tools Display Modes
Old 01-08-2014, 09:49 AM   #1
andy120
Member
 
Join Date: Jul 2006
Posts: 27
Thanked 0 Times in 0 Posts
iTrader: (0)
Friends: (0)
Default Top Flite Gold P-47

Hi all
Any tips or alterations recommended to the TF P-47 (72") kit for electric conversion?
Im hoping to do a fast build.

Andy
andy120 is offline  
  Reply With Quote
Old 01-08-2014, 06:20 PM   #2
road king 97
old hat
 
road king 97's Avatar
 
Join Date: Nov 2010
Location: joliet il
Posts: 2,843
Thanked 219 Times in 215 Posts
Club: joliet rc club rt 66
Awards Showcase

Scratchbuilders Award  Outstanding Contributor Award 
iTrader: (0)
Friends: (15)
Default

Originally Posted by andy120 View Post
Hi all
Any tips or alterations recommended to the TF P-47 (72") kit for electric conversion?
Im hoping to do a fast build.

Andy
I built the older topflight AT6 from a kit and there was nothing fast about it. It was long ago before electrict so OS 90 four cycle and i built her with fowler flaps and hand made spring loaded landing gear . Fun build and learned alot but it was on my bench for a while. Good luck on the conversion. joe
road king 97 is offline  
  Reply With Quote
Old 01-09-2014, 01:25 PM   #3
fly20
Member
 
Join Date: Feb 2007
Posts: 22
Thanked 2 Times in 2 Posts
iTrader: (2)
Friends: (0)
Default

First, if it's the gold kit your talking about it's 63" wing span not 72". I agree with road king it's not a quick build. The only real hurdle is battery placement. I made a top hatch right behind the firewall and mounted my batteries vertical. I placed the esc on the firewall inside the cowl. I still needed about 1/2 pound of nose weight. There are many detailed build threads as this is a very popular build/conversion.
fly20 is offline  
  Reply With Quote
Old 01-11-2014, 10:31 PM   #4
andy120
Member
 
Join Date: Jul 2006
Posts: 27
Thanked 0 Times in 0 Posts
iTrader: (0)
Friends: (0)
Default

Ooops, my bad, 63". Found a few interesting builds. I like the vertical battery idea.
Andy
andy120 is offline  
  Reply With Quote
Old 01-12-2014, 04:48 PM   #5
road king 97
old hat
 
road king 97's Avatar
 
Join Date: Nov 2010
Location: joliet il
Posts: 2,843
Thanked 219 Times in 215 Posts
Club: joliet rc club rt 66
Awards Showcase

Scratchbuilders Award  Outstanding Contributor Award 
iTrader: (0)
Friends: (15)
Default

I think a hatch could be built in front of the canopy without making the firewall weak. You need to get the batterys to the front of the plane. I also think you need to run a extra battery pack for the servos and reciever and no bec ,this extra pack up in the nose plus the lipo pack or 2 lipo packs will help with your CG proplems. I run 2 - 3 cell 3200 lipo packs plus a 2700 c size sanyo nimph pack shoved in the nose of my seaplane to get my CG good ,with the sanyo pack up in front i have about 1 1/2 i can slide my lipos back and forth to adjust things. Start a build thread Andy would love to see one converted . joe
road king 97 is offline  
  Reply With Quote
Old 01-13-2014, 10:41 AM   #6
andy120
Member
 
Join Date: Jul 2006
Posts: 27
Thanked 0 Times in 0 Posts
iTrader: (0)
Friends: (0)
Default

I have trolled 4 or 5 builds and got a couple of good tips. Would it be worth replacing some of the aft fuse frames with balsa laminate? There's not a lot back there to lighten up. Fibreglassing it isnt going to help cog much.
andy120 is offline  
  Reply With Quote
Old 01-13-2014, 04:27 PM   #7
road king 97
old hat
 
road king 97's Avatar
 
Join Date: Nov 2010
Location: joliet il
Posts: 2,843
Thanked 219 Times in 215 Posts
Club: joliet rc club rt 66
Awards Showcase

Scratchbuilders Award  Outstanding Contributor Award 
iTrader: (0)
Friends: (15)
Default

Originally Posted by andy120 View Post
I have trolled 4 or 5 builds and got a couple of good tips. Would it be worth replacing some of the aft fuse frames with balsa laminate? There's not a lot back there to lighten up. Fibreglassing it isnt going to help cog much.
Elecrtic motors dont stress the frame as much as nitro so you can lighten up the rear with balsa stick framing and carbon fiber . I like a builder who thinks BIG Andy and if converting these over was simple every one would have one. I kept braking my elev while framing it so i put carbonfiber strips behind the leading edge and trailing edges to stop it and recut the ribs around the strips . Its been 4 years of flying and bumbing it into stuff and its not broken again. joe


Attached Thumbnails
Click image for larger version

Name:	DSCN0203.jpg
Views:	54
Size:	81.7 KB
ID:	172871   Click image for larger version

Name:	DSCN0196.jpg
Views:	66
Size:	77.3 KB
ID:	172872  
road king 97 is offline  
  Reply With Quote
Old 01-13-2014, 06:53 PM   #8
fly20
Member
 
Join Date: Feb 2007
Posts: 22
Thanked 2 Times in 2 Posts
iTrader: (2)
Friends: (0)
Default

I agree with the king. If I had done something similar I wouldn't have needed that lump of lead in the nose.
fly20 is offline  
  Reply With Quote
Old 01-13-2014, 08:27 PM   #9
road king 97
old hat
 
road king 97's Avatar
 
Join Date: Nov 2010
Location: joliet il
Posts: 2,843
Thanked 219 Times in 215 Posts
Club: joliet rc club rt 66
Awards Showcase

Scratchbuilders Award  Outstanding Contributor Award 
iTrader: (0)
Friends: (15)
Default

I think all builders should build one of Ivans planes from plans ,you will get a new way of thinking about building very light planes. http://www.rcgroups.com/forums/showthread.php?t=710485 Links plus videos and build threads are here. joe
road king 97 is offline  
  Reply With Quote
Old 01-14-2014, 04:04 AM   #10
andy120
Member
 
Join Date: Jul 2006
Posts: 27
Thanked 0 Times in 0 Posts
iTrader: (0)
Friends: (0)
Default

I like the CF ideas, I have the same breakage issues on my 69" spitty. I didn't have any idea how far to go on something this big without weakening it too much.
andy120 is offline  
  Reply With Quote
Old 01-15-2014, 04:34 PM   #11
road king 97
old hat
 
road king 97's Avatar
 
Join Date: Nov 2010
Location: joliet il
Posts: 2,843
Thanked 219 Times in 215 Posts
Club: joliet rc club rt 66
Awards Showcase

Scratchbuilders Award  Outstanding Contributor Award 
iTrader: (0)
Friends: (15)
Default

Originally Posted by andy120 View Post
I like the CF ideas, I have the same breakage issues on my 69" spitty. I didn't have any idea how far to go on something this big without weakening it too much.
http://www.rcgroups.com/forums/showthread.php?t=192622 Keeeping the weight down with minwax. joe
road king 97 is offline  
  Reply With Quote
Old 01-23-2014, 01:08 PM   #12
andy120
Member
 
Join Date: Jul 2006
Posts: 27
Thanked 0 Times in 0 Posts
iTrader: (0)
Friends: (0)
Default

In a nut shell, this is the plan. Move the firewall much further forward, to around 30mm from the cowl face (motor mount dependent).
Dont laminate the forward frames,
No fuel tank crutches or roof,
All formers aft of the cockpit replaced with Stick/sheet balsa,
Retract tail wheel,
Relocate main wheel wells for 4 1/4" dia.,
Split main spar over 3 ribs around wheel well,
Lighten tail plains & fin w rib holes and CF reinforcing.
The motor will be a Scorpion HKIII-5020-520 on 6S5000.
The battery box position will be determined by the CoG after glassing, possibly under a hatch in the top of the cowl (vertically stored).

Andy
andy120 is offline  
  Reply With Quote
Reply

  WattFlyer RC Electric Flight Forums - Discuss radio control eflight > Electric R/C Airplanes > Warbird Electrics

« Previous Thread | Next Thread »

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

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Top Flite SE5a power suggestions? Tarasdad WWI Era 22 10-14-2013 08:04 AM
Top Flite Contender EP ARF rcers General Electric Discussions 16 01-23-2013 09:14 PM
My new toy! Top Flite Cessna firemanbill Scale E-Powered Aircraft 27 02-27-2012 03:38 AM
Top Flite Yellow Box P-51 Electric Conversion ScottVan Warbird Electrics 3 12-03-2011 07:24 PM
Flite Test Videos: Appreciation Thread FlyingMonkey Off Topic Chit Chat 66 04-04-2011 05:58 AM


All times are GMT +1. The time now is 11:00 AM.


Powered by: vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 2005 WattfFlyer.com
RCU Eflight HQ

Charities we support Select: Yorkie Rescue  ::  Crohn's & Colitis Foundation



Page generated in 0.32838 seconds with 45 queries