Project Icarus MK. I

[hinshelwood]

Hello All,

This is my first post and project. Since I've learned to use machine tools I have always wanted to design make my own motor/nozzle. For this I've designed a de Laval nozzle with a 60 degree convergent section and a 12 degree divergent section. The nozzle OD is 2" and made of 1018 carbon steel. Here are some pics of the project thus far.



For fuel I've opted to use the Flexi-Fuel mix described by WizzBang75 on youtube. From the bates grain calcualtor the motor will have 14 2.54" grains with an OD of 1.61 inches and core of 0.25". Max Kn for this motor should be 403. To keep the weight down the main body and bulk head will be made of aluminium. Initally I plan on static test of the motor design and may build another nozzle out of stainless if I can afford the material. That's all for now up next is internal threads in the nozzle and threading the motor body.

 

[Maxwelljets]

https://www.rocketryforum.com/showt...eur-Rocket-Motors-belong-in-the-Reseach-Forum

 

[MClark]

Steel motor parts (other than screws and retaining rings) are not allowed at a Tripoli launch.
If you are launching elsewhere good luck to you.
I would check your numbers.

M

 

[Syclone]

...the motor will have 14 2.54" grains with an OD of 1.61 inches and core of 0.25"

That should give a nice erosive thrust spike. :y:

 

[claytonbirchenough]

Nice to have you!

1. This does definitely belong in the research section.

2. As Syclone mentioned, look into what erosive burning is... You very much have to.

Here's a good place to start: https://rasaero.com/dloads/Erosive Burning Design Criteria.pdf

 

[MClark]

Interesting, the OP has not commented to this thread or posted anything else.

M

 

[hinshelwood]

Well I have been busy! I won't go into more details since this belongs in the research section except to say thanks for the advice. Here is a picture of the finished product.

 

[hinshelwood]

Static Test was successful.

[video=youtube;mj4gFUURwzU]https://www.youtube.com/watch?v=mj4gFUURwzU[/video]