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  #1  
Old 12-10-2020, 06:13 AM
blackbeard10's Avatar
blackbeard10 blackbeard10 is offline
 
Join Date: Sep 2007
Location: OH
Posts: 212
Default $ 5000 Tug

My hangar neighbor has one of those 5 grand tank tread radio controlled tugs.
Call it my RV tug grin when I pull out my 4 with this little gem. Owe the design to another VAF contributor. Let's see... recycled Jazzie power chair wheels and motors (Ebay), recycled plywood from an old workbench, two way momentary switch for forward and reverse, 12 v car battery castoff from my wife's Volvo and a non reliable Odyssey battery for 24 total volts and some other odds and ends. Drum roll......$ 92.78.
Massive power and I still have $ 4,907.22 to spend at SteinAir.
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Mark Wyss
Madison WI
RV4
0 360 A1A Ellison throttle body
PMags
Trutrak Efis
Catto 3 Blade
FLYING

Last edited by blackbeard10 : 12-10-2020 at 06:25 AM.
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  #2  
Old 12-10-2020, 06:49 AM
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Dugaru Dugaru is offline
 
Join Date: Jan 2016
Location: Richmond VA, USA
Posts: 524
Default Awesome!

That is truly glorious. Would love to see more photos if you get a chance. None of us is getting any younger, and I'd wager few of us have improving back conditions....
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  #3  
Old 12-10-2020, 07:17 AM
Desert Rat Desert Rat is offline
 
Join Date: Aug 2018
Location: 50-50 Wichita KS & Scottsdale AZ
Posts: 560
Default

very nice!
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  #4  
Old 12-10-2020, 07:32 AM
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Snowflake Snowflake is offline
 
Join Date: Oct 2009
Location: Sidney, BC, Canada
Posts: 4,131
Default

Nice! But i'm docking 10 points for standing your cordless drill on the drill bit.
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1996 RV-6 "Tweety" C-FRBP (formerly N196RV)
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  #5  
Old 12-10-2020, 07:41 AM
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Ed_Wischmeyer Ed_Wischmeyer is offline
 
Join Date: May 2005
Location: Savannah, GA
Posts: 1,426
Default

Somehow I still have my old RV-4 tailwheel tow bar. It's looking for a home...
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  #6  
Old 12-10-2020, 08:08 AM
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Jvon811 Jvon811 is offline
 
Join Date: Mar 2014
Location: KFNT Central Michigan
Posts: 210
Default

Quote:
Originally Posted by Snowflake View Post
Nice! But i'm docking 10 points for standing your cordless drill on the drill bit.
If that's going to hurt the tool, then it's probably not a very good tool! Try a couple 10' drop tests on the tool then pass judgement, haha.
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RV-4 N249P
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  #7  
Old 12-10-2020, 08:42 AM
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blackbeard10 blackbeard10 is offline
 
Join Date: Sep 2007
Location: OH
Posts: 212
Smile RV Tug

I will post some pics and measurements later. It will work on 12 volts but does not have enough power, so two 12v batteries in series works fine. I used 12 ga. auto wire at first but it got a little warm so I doubled all of the runs and problem solved. Used a left over momentary on-off-on switch which works fine but be sure to mark the direction Forward/Reverse or you get a hard punch in the gut!!
You could get fancy and install a reostat throttle grip (Amazon) but just momentary pulsing works fine. Simplicity!
The handle is 3/4 pipe and fittings and the handle swivels on the base for storage but still works well. The key is the use of the Jazzie wheels. You will need to cruise eBay periodically for a matching pair that includes motor, wheels, and tires.
I got mine for around $ 85. I leave the tire pressure a little low to get good traction. The angle that slides under the tail easily slides under the wheel when you drive it up. At first I tried just the T handle quick release pin to keep the wheel engaged...the wheel jumped out on pulling. So I use the nylon cord wrapped around the tailwheel shaft and slip it over the bolt with carabiner for a keeper.
This could be improved (you engineers have at it) but it works fine for me and keeping with Steve Melton's theory of simplicity I'll stick with this method. I am finishing up a Zenith 750 Stol Nose dragger project and I will build an adapter to engage the nose wheel to move the 750. It should work fine. Again I want to thank the original VAF post for posting his version.
The drill fell over...not stored. :-)
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Mark Wyss
Madison WI
RV4
0 360 A1A Ellison throttle body
PMags
Trutrak Efis
Catto 3 Blade
FLYING
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  #8  
Old 12-10-2020, 02:22 PM
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blackbeard10 blackbeard10 is offline
 
Join Date: Sep 2007
Location: OH
Posts: 212
Default TUG PHOTOS ETC.

In order not to clog up Doug's site, please go to https://www.flickr.com/photos/187537445@N08/?
for more photos and measurements some measurements did not show up well width of platform 17.5 " C channel is 7' long 1.5 deep and 2.75 wide
And yes, I should have at least some shrink tubing on the switch contacts for safety reasons. Note drill :-}
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Mark Wyss
Madison WI
RV4
0 360 A1A Ellison throttle body
PMags
Trutrak Efis
Catto 3 Blade
FLYING

Last edited by blackbeard10 : 12-10-2020 at 02:30 PM. Reason: add info
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  #9  
Old 12-10-2020, 03:08 PM
AlpineYoda AlpineYoda is offline
 
Join Date: Nov 2019
Location: Boulder, CO
Posts: 271
Default

I'd suggest that you can save $92.78 just by using your 13 year old as your tug, but the grocery bill is a lot more than $92.78 a week.
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  #10  
Old 12-10-2020, 03:38 PM
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DanH DanH is offline
 
Join Date: Oct 2005
Location: 08A
Posts: 9,938
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Quote:
Originally Posted by AlpineYoda View Post
I'd suggest that you can save $92.78 just by using your 13 year old as your tug, but the grocery bill is a lot more than $92.78 a week.

If money was no object, I'd just have Ms Patti pull mine.
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