[roc-chat] Re: Ejection canisters
- From: Mike Ostby <mdostby@xxxxxxxxxxxxxx>
- To: roc-chat@xxxxxxxxxxxxx
- Date: Mon, 22 Oct 2012 18:14:10 -0700
Won't be pointing them radially then. The body tubes are 4" blue tube. Both
separation points have 3 2-56 nylon shear pins with pieces of sheet copper on
the nose shoulder and the e-bay to help the shear. I was concerned that just
letting the drogue charge hang wasn't ideal. I was considering fastening a
short rod or piece of allthread to each end of my electronics bay to which I
would simply tape the ejection canister to. The parachutes would be protected
by nomex blankets. Going to do ground testing soon.
Jim - TFJ <jim@xxxxxxxxxxxxxxx> wrote:
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>
>>>>Don't point them radially. I have heard that in some situations they can
>>>>breach the airframe instead of deploying the laundry.
>
>I can personally confirm that this is true.
>
>Fortunately, it was a backup charge and our Thumper “Vicki Hanson and the
>Gurlymen, in Shades of Pink, featuring Cassandra” made it back safely.
>
>
>
>Yes, Vicki did get to name the Rocket and it’s color scheme.
>
>
>
>I need to post that picture of Doc testing out the parachute in our street.
>
>
>
>
>
>Jim G.
>
>
>
>From: roc-chat-bounce@xxxxxxxxxxxxx [mailto:roc-chat-bounce@xxxxxxxxxxxxx] On
>Behalf Of Lakestake Rocketry
>Sent: Monday, October 22, 2012 3:56 PM
>To: roc-chat@xxxxxxxxxxxxx
>Subject: [roc-chat] Re: Ejection canisters
>
>
>
>Don't point them radially. I have heard that in some situations they can
>breach the airframe instead of deploying the laundry.
>
>I always use a piston to protect the fabric. Others have successfully used
>baffles and 'protectors' (scraps of nomex or kevlar). On larger projects I
>place each system in it's own 4 or 6 inch airframe inside the recovery bay.
>
>Matt
>
>On Oct 22, 2012 7:39 AM, "Mike Ostby" <mdostby@xxxxxxxxxxxxxx> wrote:
>
>Looking for advice on placement of ejection canisters within the body tubes.
>They are the twiggy's that Jack sells.
>
>Thanks in advance!
>Mike Ostby
>
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