Minnie Maag 2 stage under 1500gms

[OzHybrid]

Soooooo. I was told it was impossible to build a Minnie Maag ready for flight under 1500gms. If you use the kit, it is possible, but only just....
However if you make your own lighter tube..... It's well possible.

https://www.rocketryforum.com/threads/making-spiral-wound-paper-tubing.178953/post-2534995
This was a 6 1/2"OD tube. The Minnie Maag is 5 ish...

But is it possible to make a 2 stage Minnie Maag under 1500gms.

Lets find out....

This is the start of the build where I lay out the scope.
Staging=CHAD
Motor=G64 x2
Ejection=Electronic probably ALTS2-50k (we're not going to 50K I just have one and it's light....)

Next will be the OR sim... Initiating Hamster wheel.........

 

[OzHybrid]

Quick sim with the known knowns.
As I now know the mass of my own tube..... 150gms to spare. Luxury. Might modify the fins back to more Minnie Maag shape, But I have these and know what they weigh.(300gms for the fins)

 

[NTP2]

I believe in you!!

Ps I’ll say I never said that if you can’t BTW

 

[Tractionengines]

Staging=CHAD
Motor=G64 x2

How are you CHAD staging G64's? They are composite motors and need ignition of 2nd stage at the top of the motor...What am I missing?

 

[rharshberger]

How are you CHAD staging G64's? They are composite motors and need ignition of 2nd stage at the top of the motor...What am I missing?

That was my question as well, composite motor usually dont fit the description of C.H.A.D. " CHeap and Dirty", they are more like expensive and complicated to stage (sorry no cool acronym).

 

[OzHybrid]

I have to test the idea. But it's cheap and it's dirty .. And it's been used in firework display industry for 50+ years. You'll have to wait........ Till end of March when I can get to a bigger launch as I'm pretty sure I won't get permission to launch this at our normal monthly launch site.

 

[3stoogesrocketry]

I have to test the idea. But it's cheap and it's dirty .. And it's been used in firework display industry for 50+ years. You'll have to wait........

Cannon/visco fuse ignited at the same time as motor ignition?

 

[OzHybrid]

Cannon/visco fuse ignited at the same time as motor ignition?

They're slow. Even the fast visco.

 

[3stoogesrocketry]

They're slow. Even the fast visco.

Not if you contain it in a tight sheething. Ive used visco shrink wrapped tightly at almost 4 inches per second....

 

[OzHybrid]

Rolled the cardboard for the tube. Sprayed with water and let it set at roughly the correct diameter. Made a mandrel by rolling cardboard around 110mm OD PVC pipe until got to the correct ID for the tube. Wrapped and glued the cardboard for the tube and gave it a wrap of a single layer of white 50mm gummed
tape. Gave all that a spray and compressed it down onto the mandrel with 2 layers of stretched cling film