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  #1  
Old 05-26-2018, 12:12 AM
wfinnell wfinnell is offline
 
Join Date: Jun 2006
Location: tucson, az
Posts: 99
Default Tail weight while hanging engine

Hi Guys,

How much weight do I need to add to the tail of the aircraft to hang the engine? I don't have the empinage or wings on yet.

Thanks,
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RV-8 Fuselage
Tucson AZ
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  #2  
Old 05-26-2018, 12:23 AM
Robin8er Robin8er is offline
 
Join Date: Sep 2015
Location: Oahu HI
Posts: 226
Default

You dont need much, probably 30 pounds towards the tailwheel. I put some small paint cans and some junk I had laying around in the back.

You really dont need any, but it is pretty neutrally balanced with the tail and canopy off. As long as you add some weight you will be good. You will need more weight if you have the fuselage leveled.
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  #3  
Old 05-26-2018, 02:53 AM
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goatflieg goatflieg is offline
 
Join Date: Jul 2013
Location: Clarkston, MI
Posts: 405
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Quote:
Originally Posted by Robin8er View Post
You dont need much, probably 30 pounds towards the tailwheel. I put some small paint cans and some junk I had laying around in the back.

You really dont need any, but it is pretty neutrally balanced with the tail and canopy off. As long as you add some weight you will be good. You will need more weight if you have the fuselage leveled.
Good to know. I'll be hanging mine soon and was wondering the same thing.
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RV-8 #83507 - empennage complete (except fiberglass)
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  #4  
Old 05-26-2018, 10:08 AM
wfinnell wfinnell is offline
 
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Location: tucson, az
Posts: 99
Default Thanks!

Thanks for the quick reply. You guys are great.
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  #5  
Old 05-26-2018, 11:54 AM
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wjb wjb is offline
 
Join Date: Nov 2012
Location: Half Moon Bay, CA
Posts: 782
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+1 for the info; I'm at the same point, too!
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N430WB (reserved) RV-7 #74152, tip-up. Working the baffles
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  #6  
Old 05-26-2018, 01:37 PM
skyking902001 skyking902001 is offline
 
Join Date: Oct 2009
Location: Gunter, TX
Posts: 285
Default

I laid a bag of sand over the tail wheel stinger--worked great.
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  #7  
Old 05-26-2018, 07:52 PM
MeAndMyToys MeAndMyToys is offline
 
Join Date: Jan 2011
Location: Hillsboro,OR
Posts: 133
Default Depends on the engine and prop

On my Rv-7 a 25 lb bag of shot is not quite enough without emp or wings. 50 lbs will do ok though. That is with IO-360 angle valve and Hartzell c/s prop. With the empanage on it is ok. Very light though so I left a 25 lb bag of shot back there until I put the wings on.
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  #8  
Old 05-26-2018, 11:45 PM
rv8ch rv8ch is offline
 
Join Date: Feb 2005
Location: LSGG
Posts: 2,339
Default 2 ways

I've done it two ways:
  1. 20+ liter jug strapped to the little tailwheel sawhorse when I want the aircraft level
  2. a pair of old car batteries in the baggage area when I want the tailwheel down.

Without them, it would be on its nose, that's for sure!
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Last edited by rv8ch : 06-06-2018 at 11:05 AM.
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  #9  
Old 06-05-2018, 05:11 PM
Berchmans Berchmans is offline
 
Join Date: Nov 2009
Location: Anchorage, Alaska
Posts: 416
Default Tail weight

With the empennage installed I found no additional weight was necessary to hang a YIO360M1B with Hartzell C/S prop.
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  #10  
Old 06-06-2018, 08:15 AM
Terry Lutz Terry Lutz is offline
 
Join Date: Dec 2005
Posts: 139
Default Weight On The Tail

We used an old inner tube, cut it in thirds, took one piece and folded one end together and held it with a hose clamp, filled it with sand, then sealed the other end the same way with a hose clamp. Laid it on the tail spring, and it worked great. Works good, lasts a long time, still use it on other jobs.
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