Sport Planes (Formerly I/C & Gas Conversion) Discuss I/C or Gas Conversions, Aerobatic Planes and Sport Aircraft

Tower Kaos 40 electric conversion

Old 05-23-2016, 09:25 AM
  #1  
Wrenchbody
Fullscale JetMech
Thread Starter
 
Wrenchbody's Avatar
 
Join Date: May 2016
Location: Baja Arizona
Posts: 4
Default Tower Kaos 40 electric conversion

Recently converted Tower Kaos 40 pattern plane. Built from kit back in 1999 and is now revived with nice quiet electric powerplant. Built as a taildragger from the start and has other build mods to beef up structure and attachments in the Tower design. Original install was an old Super Tigre G60 with a tuned pipe. Weight with full tank was around 6 pounds. Unlimited vertical and high top end speed was the nitro burner's forte. This airframe had not flown for about 14 years until just recently. Installed an ElectriFly Rimfire .46 with a 5S 3600mAh Lipo for new fuel tank. 80A ESC with BEC controls the new motor and feeds the receiver. All up total weight is now 5.7 pounds. The performance may not be on a par with the nitro engine but it is very close, with instant torque the G60 never had, even with its tuned pipe. Totally rebuilt the cowling, fully enclosing the electric motor and using a cooling ram air system via scoop mounted just above the tru turn spinner. Battery hatched the bottom where the fuel cell was and installed a negative pressure vent in the removable hatch to get cowling air flowing across the ESC and battery. Went from an 11x7 APC sport prop to an 11x8.5E APC prop on the Rimfire. Could handle an 11x10E without exceeding max wattage at this altitude but it has better static thrust with the lower pitch. Before and after pics attached, along with a few in progress photos.
Attached Images
File Type: jpg
RCaircraft 081sm.jpg (362.9 KB, 1528 views)
File Type: jpg
RCaircraft 071sm.jpg (352.4 KB, 836 views)
File Type: jpg
RCaircraft 072sm.jpg (276.4 KB, 732 views)
File Type: jpg
RCaircraft 110sm.jpg (415.4 KB, 676 views)
File Type: jpg
RCaircraft 120sm.jpg (346.1 KB, 674 views)
File Type: jpg
RCaircraft 132sm.jpg (381.8 KB, 694 views)
File Type: jpg
RCaircraft 143sm.jpg (329.2 KB, 693 views)
File Type: jpg
RCaircraft 166sm.jpg (406.0 KB, 1140 views)
File Type: jpg
RCaircraft 164sm.jpg (326.7 KB, 732 views)
File Type: jpg
RCaircraft 181sm.jpg (685.7 KB, 901 views)

Last edited by Wrenchbody; 05-23-2016 at 09:39 AM. Reason: Addition
Wrenchbody is offline  
Old 05-23-2016, 11:07 PM
  #2  
Porcia83
Member
 
Join Date: Feb 2010
Posts: 543
Default

Sweet! I picked up a Groovy a couple of years back that was converted to electric, similar set up with yours. Probably slower than nitro, but hauls around very nicely!
Porcia83 is offline  
Old 05-23-2016, 11:43 PM
  #3  
birdDog
Charging....
 
birdDog's Avatar
 
Join Date: Nov 2007
Location: Too close to Chicago.
Posts: 2,433
Default

So many 3d planes available. The old classics are where the grace and beauty are. Nice to see them finally running right!
birdDog is offline  
Old 05-24-2016, 05:10 AM
  #4  
P51 fan
Amazon Airspace Tester
 
P51 fan's Avatar
 
Join Date: Apr 2016
Location: MN
Posts: 182
Default

Very nice and clean install...looks great! The burn-outs in the last pic really add a "fast" look.
P51 fan is offline  
Old 05-24-2016, 05:27 AM
  #5  
Wrenchbody
Fullscale JetMech
Thread Starter
 
Wrenchbody's Avatar
 
Join Date: May 2016
Location: Baja Arizona
Posts: 4
Default

Originally Posted by P51 fan View Post
The burn-outs in the last pic really add a "fast" look.
I have no problem with sharing my runway with fast cars! This was the remaiden day post flight pic after the first electric powered circuit. Actually had a few mini bikes and quads run down the road while I was out flying. Great dead end desert road for test flights.
Wrenchbody is offline  
Old 05-24-2016, 12:25 PM
  #6  
Bald Paul
Member
 
Bald Paul's Avatar
 
Join Date: Mar 2011
Location: Boiling Springs, SC
Posts: 547
Default

Originally Posted by birdDog View Post
So many 3d planes available. The old classics are where the grace and beauty are. Nice to see them finally running right!
I couldn't agree more. That Kaos is classic, and classy. Excellent work on the conversion. I think it looks even better now without that huge pipe hanging along the side.
Bald Paul is offline  
Old 05-24-2016, 02:34 PM
  #7  
soarrich
Soarrich
 
soarrich's Avatar
 
Join Date: May 2012
Location: NJ, USA
Posts: 198
Default

Wow! That is a really nice Kaos.

I had a 40, 60, and Super Kaos in the 70's, I loved the way they flew. I was at an auction and picked up a Kaos, it was built super light, covered with dope, and I don't think the builder had any sandpaper.

It's the plane that really turned me on to electrics. I put a HK NTM Prop Drive 35-48 Series 900KV / 815W and by just changing the prop I could go from having a plane that flew like it had a 70's 40 in it, to a plane that flew like it had a piped 60 in it.
Attached Images
File Type: jpg
03 03 13_0021a.jpg (684.7 KB, 728 views)
soarrich is offline  
Old 05-24-2016, 11:13 PM
  #8  
P51 fan
Amazon Airspace Tester
 
P51 fan's Avatar
 
Join Date: Apr 2016
Location: MN
Posts: 182
Default

The old classics are where the grace and beauty are.
Agree! I had recently ran on to this mini 17" version of the Kaos, I don't have the equipment for this small of a plane but I was going to build it just to hang in my shop...love the lines of the Kaos.

http://www.outerzone.co.uk/plan_details.asp?ID=7732
P51 fan is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
AEAJR
Beginners
165
06-28-2017 05:22 PM
AEAJR
General Electric Discussions
273
01-09-2017 03:23 AM
AEAJR
Beginners
28
02-16-2016 01:19 AM
kyleservicetech
Sport Planes (Formerly I/C & Gas Conversion)
13
05-15-2013 09:50 PM
hybrid
General Electric Discussions
16
02-12-2011 10:35 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: Tower Kaos 40 electric conversion


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

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 0.09270 seconds with 27 queries