Double or triple parachutes?

brockrwood

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Well played.

Does it need the boosters or are they just for show?
It needs ‘em. A C6-5 might get it off the pad without the boosters, but the weight is right at a C6-5’s maximum lift off weight. Three A8-3’s gets it moving quickly. It needs that big initial thrust to get off the pad. If a C11 came in an 18mm form factor, that might work.
 

GlenP

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So all the chutes are in the main central body tube? Was kind of confused by the first post without a picture to help in visualizing the recovery configuration. The side strap on parallel/cluster “boosters” don’t have any chutes in their tubes, they only contain the zero delay motors and vent directly outside?
 

brockrwood

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So all the chutes are in the main central body tube? Was kind of confused by the first post without a picture to help in visualizing the recovery configuration. The side strap on parallel/cluster “boosters” don’t have any chutes in their tubes, they only contain the zero delay motors and vent directly outside?
That is correct. Before I painted the rocket, the booster tubes each had a small parachute in it. But that left scorch marks on the side of the sustainer tube. Didn’t like he scorching. When it was unpainted, it had three parachutes. One in each booster and one in sustainer.

Now the only place for a parachute is the sustainer tube. I am trying to get two parachutes in there. It is a tight fit. I am scared the ejection charge won’t blow out all of that laundry.
 

brockrwood

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So all the chutes are in the main central body tube? Was kind of confused by the first post without a picture to help in visualizing the recovery configuration. The side strap on parallel/cluster “boosters” don’t have any chutes in their tubes, they only contain the zero delay motors and vent directly outside?
Each parachute is 11.5 inches in diameter (circle).

Three engine cluster. I love clusters.

:)

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GlenP

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Ok, now I understand, you were talking about a before and after configuration, two different set ups of the same rocket that was modified. Thanks for the clarification.

I think if you continue to pack the two chutes carefully you shouldn't have any problem. If you pull the nose cone out partially and turn it upside down, the weight of the nose should be able to pull the chutes out, if not then maybe they were packed too tightly in the tube. I would worry more about just getting them out of the tube first, then not worry so much about the unfurling.
 

brockrwood

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Ok, now I understand, you were talking about a before and after configuration, two different set ups of the same rocket that was modified. Thanks for the clarification.

I think if you continue to pack the two chutes carefully you shouldn't have any problem. If you pull the nose cone out partially and turn it upside down, the weight of the nose should be able to pull the chutes out, if not then maybe they were packed too tightly in the tube. I would worry more about just getting them out of the tube first, then not worry so much about the unfurling.
Here is the previous configuration where each booster tube had its own parachute. See the scorch marks the ejection charges in the boosters left on the sustainer tube? That is what I didn’t like. So I decided to just glue on the booster tube nose cones and use only plugged or booster engines in the two booster tubes.

But that left only the sustainer tube to hold parachutes.

Post in thread 'Starting Build on Unnamed Spare Parts Monstrosity'
https://www.rocketryforum.com/threa...d-spare-parts-monstrosity.173392/post-2292467
 
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