To anyone who has done DD with a single chute and a cable cutter,
Perhaps you can help me with a sanity check on what I am planning, before I spend my hard-earned money.
I have an Estes Leviathan built for HPR. On a small H, it's going way up there. My choices? Put a tracker in it and take the recovery walk; or, do dual deployment and try to land it closer to the pad.
I thought about going with an Archetype Cable Cutter and Adept DDC22 altimeter. Not a bad solution for $60.00.
To do this, I will need to put the altimeter in the nose cone. And as I was considering how I would do this, a question came to mind that I hadn't thought of before.
How do you put sensor holes in a nose cone? Do you just drill into the sides of the ogive? Do you drill through the airframe and into the shoulder (but then how do you keep them lined up)?
Also, in terms of a switch, I am thinking that since the BP explosion that causes the cable-cutting is contained inside the cylinder, then there is no risk of injury if the charge goes off early, and as such, there is no need for an altimeter switch. Activate the altimeter before or after the RSO inspection by attaching the battery, and leave it armed. Anyone see an issue with that?
I was thinking motor ejection, and us the altimeter to cut the cable.
Things I need:
In summary:
Thanks!
Perhaps you can help me with a sanity check on what I am planning, before I spend my hard-earned money.
I have an Estes Leviathan built for HPR. On a small H, it's going way up there. My choices? Put a tracker in it and take the recovery walk; or, do dual deployment and try to land it closer to the pad.
I thought about going with an Archetype Cable Cutter and Adept DDC22 altimeter. Not a bad solution for $60.00.
To do this, I will need to put the altimeter in the nose cone. And as I was considering how I would do this, a question came to mind that I hadn't thought of before.
How do you put sensor holes in a nose cone? Do you just drill into the sides of the ogive? Do you drill through the airframe and into the shoulder (but then how do you keep them lined up)?
Also, in terms of a switch, I am thinking that since the BP explosion that causes the cable-cutting is contained inside the cylinder, then there is no risk of injury if the charge goes off early, and as such, there is no need for an altimeter switch. Activate the altimeter before or after the RSO inspection by attaching the battery, and leave it armed. Anyone see an issue with that?
I was thinking motor ejection, and us the altimeter to cut the cable.
Things I need:
- Cable Cutter Kit
- Altimeter
- Sled, inner and outer bulkheads for nose cone
- Wood glue
- Nomex
- Igniter/starter/e-match
- BP
- Terminal block
In summary:
- Where do the vent holes go in the nose cone?
- Can I go switch-free?
- Am I missing anything in my list of parts?
- Any other ideas/warnings/thoughts?
Thanks!