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brs install

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pbuttles(at)charter.net
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Posted: Mon Mar 10, 2008 6:16 am Post subject: brs install

has anybody installed the brs chute canister in the extended bagage copartment on a 701? how big do you make the plastic cover openin gin the skin and how deep do you score the plastic so that it will break open when deployed?

thanks

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lgold(at)quantum-associat
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Posted: Mon Mar 10, 2008 9:00 am Post subject: brs install

Tracy

I installed a BRS soft-pack behind the  baggage compartment rather than following BRS's suggested installation forward  of this bulkhead. I did this because a deployment so close to my head would  probably blow out my eardrums and because I didn't want to loose a lot of  baggage space. In my opinion, the the BRS design for 701 installation is  inadequate so I made some mods. Regardless or whether you install the chute  forward or behind the baggage bulkhead you will need to add extra supports  gussets to top and bottom the bulkhead. I also added a 1/8th inch "L"  horizontally side-to-side. The force exerted by the rocket on the the tube  (and subsequently to the bulkhead would probably distort an unsupported  bulkhead. This could prevent the chute from deploying. BRS approved my mods  based upon information I sent them and should include these mods with their  installation instructions for 701s.



One concern I had was that placing  the 35-pound chute so far back would push the CG too far aft. However, my  empty CG (with 912 ULS power plant) came out 373mm aft of the front of the  slats. (the allowed loaded range is 280 to 500mm). Even fully loaded, I can  add up to 50# of baggage without exceeding 500mm. If I carefully keep  the baggage CG forward (using a cargo net) with  my strengthened baggage compartment, I can have over 50# of cargo  without going over 500mm. 

I can send you pictures of my installation if  you email me; lgold(at)quantum-associates.com (lgold(at)quantum-associates.com)

Les 



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Mark Colbeck

Joined: 04 Nov 2007
Posts: 29
Location: Cochrane, Alberta, Canada

Posted: Tue Apr 01, 2008 3:47 am Post subject: Re: brs install

I too am considering the BRS chute and would love to see your details on your install. What made you decide to go with the soft pack vs hard pack?

mark(at)masterpieceliving.ca

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