Aerospike flight

[Mike Fisher]

I'm attaching the url to a cool photo of my aerospike flight a couple of months ago. It was a 75mm L running my slow blue formula.

https://northwestrocketry.com/uploads/aero6.jpg

Special thanks to Rick Clapp for the photo and Greg Deputy for the web space.

See you at BALLS with the M aerospike.

Mike Fisher
Binder Design
https://binderdesign.com

 

[Steward]

You know... That looks like a Binder Design....

Wonder...??? LOL!!!

 

[DynaSoar]

Originally posted by Mike Fisher
I'm attaching the url to a cool photo of my aerospike flight a couple of months ago. It was a 75mm L running my slow blue formula.

https://northwestrocketry.com/uploads/aero6.jpg

Special thanks to Rick Clapp for the photo and Greg Deputy for the web space.

See you at BALLS with the M aerospike.

Mike Fisher
Binder Design
https://binderdesign.com

What's the chances you'll be able to allow open license to hobbyists that want to work with the aerospike design?

 

[Mike Fisher]

What's the chances you'll be able to allow open license to hobbyists that want to work with the aerospike design?

I've already made quite a few for other EX'ers to try. They're not cheap however. Each one takes more than two hours to machine. They are reusable as long as you use a low slag formula.

Mike Fisher

 

[daveyfire]

Originally posted by Mike Fisher
See you at BALLS with the M aerospike.

Coooool! I love that blue flame. How long was the burn time on that motor?

See you at Black Rock. 7 days... I can't wait!

 

[Mike Fisher]

How long was the burn time on that motor?

Six seconds.

Mike

 

[Johnnie]

Question:

Paraffin Hybrids burn much like a bi-prop, as the the wax melts and burns, how might an "aerospike" be of assistance?

I mean, no metals, no bi-product exiting the nozzle, except for maybe some melting un-burned wax when the nitrous is exhausted...could prove to be a match.

 

[DynaSoar]

Originally posted by Mike Fisher
I've already made quite a few for other EX'ers to try. They're not cheap however. Each one takes more than two hours to machine. They are reusable as long as you use a low slag formula.

Mike Fisher

I was just thinking of using the design. I figured it's patented.

 

[gerbs4me]

thats a really sweet loking flame

 

[Mike Fisher]

I was just thinking of using the design. I figured it's patented.

No. The aerospike has been around since the 1950's and for the most part has been ignored due to the difficulties in manufacturing and operation. It's just recently been getting attention again.

Mike Fisher

 

[Mike Fisher]

Question:

Paraffin Hybrids burn much like a bi-prop, as the the wax melts and burns, how might an "aerospike" be of assistance?

I mean, no metals, no bi-product exiting the nozzle, except for maybe some melting un-burned wax when the nitrous is exhausted...could prove to be a match.:

An aerospike should be more efficient no matter what the fuel is because it is optimally expanded from sea level to orbit. The main reason that I try to use a clean burning low metals formula is for clean up. This nozzle has a total of nine ports. You think a standard graphite nozzle is hard to clean? Just try a high metals formula at low pressures in one of these, and you'll be throwing it away in frustration after the first firing.

There's no reason it wouldn't work in your wax hybrid.

Mike Fisher