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  #1  
Old 07-27-2021, 07:25 PM
M5fly's Avatar
M5fly M5fly is online now
 
Join Date: Mar 2019
Location: Reno, NV
Posts: 163
Default Adding a crotch strap

What does it take to add the crotch strap and where exactly does the mount go? I'd like to replace my belts soon with the kam-lock 5 point harness from Crow. I may also have to do a little modification to the mounts since the current belts use a hook and Crow bolts on.
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N642RV at KCXP
1992 RV-6A, O-320 150hp
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  #2  
Old 07-27-2021, 07:42 PM
Latech15 Latech15 is offline
 
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Location: louisiana
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I bought my plane built. It didnít come with a crotch strap. I called crow and they sold them to me for $14 per. I removed the seat panels and the infrastructure, as well as the bolts, were already there. It took about 30 minutes total to install them. Easy as pie. The seat pan and the seat, both have openings for the strap to pass through.
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  #3  
Old 07-27-2021, 08:00 PM
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M5fly M5fly is online now
 
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Location: Reno, NV
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Quote:
Originally Posted by Latech15 View Post
I bought my plane built. It didnít come with a crotch strap. I called crow and they sold them to me for $14 per. I removed the seat panels and the infrastructure, as well as the bolts, were already there. It took about 30 minutes total to install them. Easy as pie. The seat pan and the seat, both have openings for the strap to pass through.
My seat pan has a thin layer of fabric over it so I'll have to pull it up and see if mine has the infrastructure or not. I had assumed it didn't but maybe it does and that'll be easy.
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N642RV at KCXP
1992 RV-6A, O-320 150hp
Bought flying, 1/2021

Exemption waived, 2021 donation made
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  #4  
Old 07-27-2021, 08:13 PM
PCHunt PCHunt is offline
 
Join Date: Feb 2007
Location: San Diego, CA
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Vans sells a kit to retrofit a crotch strap in their webstore.

5th pt. installation kit, RV-7/7A, RV-9/9A both seats CROTCH STRAP KIT $36.00

It will work in an RV-6/6A with some TLC.

Cheers!
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  #5  
Old 07-28-2021, 12:41 AM
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MacCool MacCool is offline
 
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Location: central Minnesota
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On the 9A, the crotch strap for my Crow harnesses bolts between two cross stringers right behind the stick. I found the crotch straps to be a nuisance on my non-aerobatic airplane and never used them...removed both at condition inspection. Not hard to get to in order to install or remove as long as the floor is out.
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  #6  
Old 07-28-2021, 02:01 AM
PCHunt PCHunt is offline
 
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Location: San Diego, CA
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I like the crotch strap. In flight, it keeps the lap strap low on my hips, and prevents it from riding up.
And in the event of a "sudden stop" it prevents "submarining", where you slide under your lap strap in a crash.
I see no downside. YMMV
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  #7  
Old 07-28-2021, 05:59 AM
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RONSIM RONSIM is offline
 
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Location: Largo, FL
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Default Agree with Pete

The Van's kit for the -7 will work in the -6A. It did take some "field engineering and adjustment" to get it in. I agree the crotch strap is desireable.

Ron
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  #8  
Old 07-28-2021, 06:37 AM
WingsOnWheels WingsOnWheels is offline
 
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Location: Plano, TX
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Quote:
Originally Posted by PCHunt View Post
Vans sells a kit to retrofit a crotch strap in their webstore.

5th pt. installation kit, RV-7/7A, RV-9/9A both seats CROTCH STRAP KIT $36.00

It will work in an RV-6/6A with some TLC.

Cheers!
I used the 7/9 kit on my 6A. I had to cut off one side and replace it with some angle (the seat rib spacing is a little bit different, but otherwise an easy mod.
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  #9  
Old 07-28-2021, 01:21 PM
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DeeCee 57 DeeCee 57 is offline
 
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Quote:
I used the 7/9 kit on my 6A. I had to cut off one side and replace it with some angle
same on my -6.9. Easy to do is relative... I call myself experienced, but not sure if cutting off flanges, bending and riveting new ones, and fitting the whole thing whilst bent preaching is to be called easy

There are a couple of threads on here with similar info and a few more picts...
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  #10  
Old 07-28-2021, 02:09 PM
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azrv6 azrv6 is offline
 
Join Date: Mar 2006
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For those of you who have retrofitted a crotch strap into a flying RV6: how did you handle the already upholstered seat cushion?

It looks to me like the Van's kit would set the crotch strap coming out of the seat pan several inches aft of the control stick hole, necessitating a hole in the seat cushion.

Pictures I've seen of planes where the crotch strap was installed during the build, all have nice holes in the seat cushion done at time of upholstering.

Could you just run the crotch strap forward those few inches, under the seat cushion, and then pull it up in the notch in the cushion for the control stick.
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