Search found 8 matches

by 90zimara
Thu Feb 11, 2021 6:12 am
Forum: Hybrid Cannons
Topic: Need help
Replies: 15
Views: 720

Re: Need help

I also have another question, I once read on this forum that the best ratio between Chamber and Barrel is 1:1 but then I also read somewhere else it was around 3:1, now, I know there is a software but it seems loke the original link is broken and I can't get a hand on it :/ I also haven't done any m...
by 90zimara
Wed Feb 10, 2021 5:41 pm
Forum: Hybrid Cannons
Topic: Need help
Replies: 15
Views: 720

Re: Need help

Simple. In my case, (this is independent of the mixture retention system that the hybrid has, rupture disc, piston with pilot, o'ring only), for a given combustion chamber volume, I measured with my pressure gauge that with 6 pumps, I have 5 bar. As long as you give 6 pumps you will have 5 bar ... ...
by 90zimara
Wed Feb 10, 2021 12:09 am
Forum: Hybrid Cannons
Topic: Need help
Replies: 15
Views: 720

Re: Need help

I agree with what they tell you. For your first hybrid barrel a rupture disc system is the simplest thing to do and is VERY EFFECTIVE! :evil: You have to draw a picture of what you have in mind, hybrid barrel size, projectile type, fill pressure and all that. On the other hand, list your specific d...
by 90zimara
Tue Feb 09, 2021 12:25 pm
Forum: Hybrid Cannons
Topic: Need help
Replies: 15
Views: 720

Re: Need help

Second here for using a burst disk and syringe metering. In terms of complexity, the next step up from that would probably be manometric (using chamber pressure to measure fuel and air) fueling. The type of fueling SB15 uses on his cannons is volumetric ("air through meter" design which is pretty a...
by 90zimara
Tue Feb 09, 2021 6:59 am
Forum: Hybrid Cannons
Topic: Need help
Replies: 15
Views: 720

Re: Need help

I am planning on using the power of hybrid cannons as a project for my thermodynamics class and pretend to be doing a lot of tests on it. Always the best excuse :) I think you can go a lot simpler by just using a burst disk and fuel by volume (with a syringe) instead of by pressure. Example of a bu...
by 90zimara
Tue Feb 09, 2021 6:58 am
Forum: Hybrid Cannons
Topic: Small semi automatic hybrid project
Replies: 122
Views: 20596

Re: Small semi automatic hybrid project

Oye, amigo. Resulta que no sé cómo enviar mensajes directos en este foro. Hace tres años había estado pidiendo ayuda para crear un cañón híbrido pero desafortunadamente tuve que pausarlo. ¿Usted me podría ayudar? Veo que habla español y que podría utilizar eso, lo siento si te importa mi comentario...
by 90zimara
Mon Feb 08, 2021 11:25 pm
Forum: Hybrid Cannons
Topic: Need help
Replies: 15
Views: 720

Need help

Hello everybody. So, I created an account on this forum and made a similar post 3 years ago and had a lot of replies from this community, thanks by the way, unfortunately I had to stop due to things that got out of my hands. But now, 3 years later I am planning on using the power of hybrid cannons a...
by 90zimara
Mon Feb 08, 2021 11:14 pm
Forum: Hybrid Cannons
Topic: Small semi automatic hybrid project
Replies: 122
Views: 20596

Re: Small semi automatic hybrid project

On the other hand, the user "Yasu" published this combustion cannon, which only makes noise because I think I remember these weapons are illegal in Japan. Just because Yasu can't use a projectile doesn't mean he can't shoot anything ... I can't find his posts here on this forum to try to learn some...