Tender Descender Alternatives

[Random Flying Object]

I currently use a couple of Tender Descenders as a redundant release to deploy my main chute. Does anyone know of any alternatives?


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[JohnCoker]

The Archetype cable cutter looks like a simple and inexpensive option.

 

[conman13]

I have a cable cutter, I love it. It's simple to use and most importantly works!

 

[HeavyLight]

I gotta admit, I was looking for an alternative too and came across this. I cam across this a while ago.
https://www.apogeerockets.com/education/downloads/Newsletter258.pdf

 

[Bat-mite]

Ditto on the Archetype Cable Cutter. Very easy and not expensive.

 

[Random Flying Object]

A cable cutter won't work in my configuration. The line it separates holds the full force of the drogue on a 70lb rocket. The main stays tucked away in a chute tube until the tender decenders fire and the push charges force the main out of the chute tube.



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[dixontj93060]

I believe you can still order these from Eric at Baddazz: https://baddazzrocketry.com/BAR/Partzz.html.

 

[Reinhard]

Take a look at the Rattworks ARRD and the SpaceTec Servo Release Mechanism.

You could also use the line cutters, that are part of an automatic activation device for parachutists. They are basically a high performance version of the Archetype Cable Cutter that can cut much stronger lines. For example, Airtec advertises it's CYPRES cutter as being able to cut steel wire (not a word about the thickness or alloy, though). Unfortunately, they are quite expensive (~$100, single use).

Reinhard

 

[Random Flying Object]

Take a look at the Rattworks ARRD and the SpaceTec Servo Release Mechanism.

You could also use the line cutters, that are part of an automatic activation device for parachutists. They are basically a high performance version of the Archetype Cable Cutter that can cut much stronger lines. For example, Airtec advertises it's CYPRES cutter as being able to cut steel wire (not a word about the thickness or alloy, though). Unfortunately, they are quite expensive (~$100, single use).

Reinhard

The Rattworks ARRD is exactly what I need. Thank you.



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