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  #1  
Old 05-27-2018, 10:58 AM
MConner MConner is offline
 
Join Date: Mar 2018
Location: Snead Island, Florida
Posts: 96
Default Removable ballast

I spend most of the time flying with one or two folks and little baggage. The CG is always just barely at the forward limit.

I know some folks toss in unsecured shot bags in the baggage compartment but that could seriously injure someone if there was a sudden deceleration. I considered a much smaller weight that mounts as far back as possible but was easily removable when the mission called for four seats and bags.

I am wondering if the tail tie down boltís nutplate and structure would be strong enough for around 5# of conformal weight.

Mark
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  #2  
Old 05-27-2018, 11:13 AM
togaflyer togaflyer is offline
 
Join Date: Apr 2013
Location: Cleveland Ga
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A liter of water is 2.2 pounds. Carry a couple bottles of drinking water in the back.
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  #3  
Old 05-27-2018, 11:52 AM
MConner MConner is offline
 
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Yes many sailplanes have a water tank in the tail for CG control. Not a bad idea but still needs to be secured and at the tail.
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  #4  
Old 05-27-2018, 12:24 PM
Mousse Mousse is offline
 
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Location: Deux-Montagnes, Qc, Canada
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I just bought a Swiss Army water bag for this purpose. Its holds up to 20 litres and is made of strong rubber with two handles that can be easily fastened. Available from Army surplus stores for $18.

Michel
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  #5  
Old 05-27-2018, 01:18 PM
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Larry DeCamp Larry DeCamp is offline
 
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Location: Clinton, Indiana
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Default Similar profile !

I fly mostly solo so plan to make a tail wheel spring weight to put my RV at most rearwardACRO limit for solo flying. It will come off with one bolt for dual flight....FWIW
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  #6  
Old 05-27-2018, 01:46 PM
Kyle Boatright Kyle Boatright is offline
 
Join Date: Aug 2005
Location: Atlanta, GA
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Quote:
Originally Posted by Larry DeCamp View Post
I fly mostly solo so plan to make a tail wheel spring weight to put my RV at most rearwardACRO limit for solo flying. It will come off with one bolt for dual flight....FWIW
Be careful. That could drastically change the aircraft's spin and recovery characteristics.
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  #7  
Old 05-27-2018, 02:22 PM
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plehrke plehrke is offline
 
Join Date: Sep 2006
Location: Defiance, MO
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Quote:
Originally Posted by Kyle Boatright View Post
Be careful. That could drastically change the aircraft's spin and recovery characteristics.
And make sure you remove when carrying load with aft CG.
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  #8  
Old 05-27-2018, 02:42 PM
rv7charlie rv7charlie is offline
 
Join Date: May 2006
Location: Pocahontas MS
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And report back after your 1st long solo cross country...
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  #9  
Old 05-27-2018, 03:47 PM
MConner MConner is offline
 
Join Date: Mar 2018
Location: Snead Island, Florida
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Quote:
Originally Posted by Mousse View Post
I just bought a Swiss Army water bag for this purpose. Its holds up to 20 litres and is made of strong rubber with two handles that can be easily fastened. Available from Army surplus stores for $18.

Michel
How and where will you secure your water ballast bag?

Mark
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  #10  
Old 05-27-2018, 03:53 PM
MConner MConner is offline
 
Join Date: Mar 2018
Location: Snead Island, Florida
Posts: 96
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Quote:
Originally Posted by Kyle Boatright View Post
Be careful. That could drastically change the aircraft's spin and recovery characteristics.
Kyle, caution noted. I am not planning to load the plane outside the normal CG limit but right now it is at or ahead of the forward limit with no baggage/ballast.
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