Parachute attachment

If I want to put the parachute in the same cord as rocket and cone (the shock cord), what distance it should be from those? 1/3 from the cone and 2/3 from the rocket body?

I put the chute on the end of the cord and the NC about 12" below that on my MPR's. This means it all hangs straight when the chute deploys and the NC isn't swinging around or banging into the BT. You could even attach both the chute and the cord to the anchor on the NC.

ThreeJsDad said:

I put the chute on the end of the cord and the NC about 12" below that on my MPR's. This means it all hangs straight when the chute deploys and the NC isn't swinging around or banging into the BT. You could even attach both the chute and the cord to the anchor on the NC.

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This is brilliant and I'm kicking myself for not thinking of it.

I saw the idea of putting the 'chute at the end of the shock cord posted, I think, in TRF some time ago. It is the way I do it now (when I remember ... habits are hard to break).

Antares JS said:

This is brilliant and I'm kicking myself for not thinking of it.

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Thank You Sir.
Even a blind squirrel finds an acorn from time to time....LOL

ThreeJsDad said:

Thank You Sir.
Even a blind squirrel finds an acorn from time to time....LOL

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can you show me a photo if you have. thanks

Rocketbegg said:

can you show me a photo if you have. thanks

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Of a blind squirrel getting a nut......LOL That could be tough, the other is easy I will shoot a pic of one of my rockets.

ThreeJsDad said:

I put the chute on the end of the cord and the NC about 12" below that on my MPR's. This means it all hangs straight when the chute deploys and the NC isn't swinging around or banging into the BT. You could even attach both the chute and the cord to the anchor on the NC.

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Like this...

lakeroadster said:

Like this...

View attachment 409607

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Yup except my rocket isn't as cool looking. Most of the time I just make a larks head and attach the nose cone.

lakeroadster said:

Like this...

View attachment 409607

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thanks so much!!

lakeroadster said:

Like this...

View attachment 409607

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How many times the rocket lengh is the total lengh of the cord? Do you put 1/3 elastic and 2/3 of the total cord not elastic, yes?

lakeroadster said:

Like this...

View attachment 409607

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How well does something like this translate over to high power? Would this configuration work? My concern is that it could present an issue in an incomplete chute deployment. I would imagine you would need a much more energetic charge to get the chute out.

Nodroc said:

How well does something like this translate over to high power? Would this configuration work? My concern is that it could present an issue in an incomplete chute deployment. I would imagine you would need a much more energetic charge to get the chute out.

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It works fine for larger rockets. I suspect an extra heavy nosecone might cause issues, but I have successfully used this rigging for larger rockets.

It shouldn't affect the size of the ejection charge that us needed. Regardless of where the 'chute is attached, everything has to come out at ejection.