Search found 1053 matches
- Sun Nov 26, 2023 5:08 pm
- Forum: General How-To & Discussion
- Topic: Fly-K mortar - "captive piston" variation
- Replies: 14
- Views: 26564
Re: Fly-K mortar - "captive piston" variation
Nice launching system!! The Diesel hammer came to mind. I imagine that it would be impossible due to the weight of the ammunition necessary to achieve the compression necessary to achieve self-ignition of an air-fuel mixture. My inspiring system!
- Sun Nov 26, 2023 4:50 pm
- Forum: Hybrid Cannons
- Topic: Hybrid geometry
- Replies: 7
- Views: 6320
Re: Hybrid geometry
An interesting question and I thought worth investigating, so I made the following modifications to the Mini Hybrid II : Blunt endcap insert: 20231123_211452.jpg Insert bore tapered: 20231123_214925.jpg I fired two shots each with both endcap variations, for each shot I used a 63cm long 0.177" barr...
- Thu Nov 16, 2023 3:38 pm
- Forum: Hybrid Cannons
- Topic: Compression Ignition Hybrid Testbed
- Replies: 6
- Views: 5075
Re: Compression Ignition Hybrid Testbed
Good point you raise. More travel and more air improves everything here. As for the fuel, I don't think you can use anything that we have at hand, that has a much higher autoignition temperature. What you might think is some "special" ingredient to raise this point. Don't know... :roll: The informat...
- Thu Nov 16, 2023 3:29 pm
- Forum: Hybrid Cannons
- Topic: Mini Hybrid II
- Replies: 11
- Views: 28298
Re: Mini Hybrid II
That flash on the first objective was great. Good job and an inspiration to many, for sure.
I am compiling these new tests with the pure hybrid, in "Jack's Bible"
I am compiling these new tests with the pure hybrid, in "Jack's Bible"
- Tue Nov 14, 2023 1:20 pm
- Forum: Hybrid Cannons
- Topic: Compression Ignition Hybrid Testbed
- Replies: 6
- Views: 5075
Re: Compression Ignition Hybrid Testbed
What we need is a fuel with a high autoignition temperature. This is so that the compression of the hybrid chamber is significant and that the fuel does not self-ignite before
- Sun Nov 12, 2023 5:49 pm
- Forum: Hybrid Cannons
- Topic: Compression Ignition Hybrid Testbed
- Replies: 6
- Views: 5075
Re: Compression Ignition Hybrid Testbed
Another option to avoid premature ignition could be to use a high-octane fuel, but it would no longer be something you can get anywhere, and at a low price.
Vegetable oil burns very well, but it seems that it is not enough...
Vegetable oil burns very well, but it seems that it is not enough...
- Sun Nov 12, 2023 5:44 pm
- Forum: Hybrid Cannons
- Topic: Compression Ignition Hybrid Testbed
- Replies: 6
- Views: 5075
Re: Compression Ignition Hybrid Testbed
Excellent post!!! You can see all the experimental work with a single glance!!! It would be interesting for the, engineers the forum to participate, to make Jack and me aware of issues that we could not see... Any idea, concept, information or whatever, would be very welcome for this project. For my...
- Sun Nov 12, 2023 7:46 am
- Forum: Hybrid Cannons
- Topic: Hybrid disk burst pressure effect on performance
- Replies: 20
- Views: 29899
Re: Hybrid disk burst pressure effect on performance
Interesting research. Timing is also important, not just accumulating more pressure.
- Tue Nov 22, 2022 8:35 pm
- Forum: Hybrid Cannons
- Topic: Questions about pressure and flow rate
- Replies: 5
- Views: 4097
Re: Questions about pressure and flow rate
Assuming that there are two combustion chambers A and B, the volume of A is twice that of B, and the initial pressure of B is twice that of A, then theoretically, A and B should use the same amount of fuel, so their calorific values should be the same. Then the question comes, which one, A and B, c...
- Sat Nov 12, 2022 9:38 am
- Forum: Hybrid Cannons
- Topic: Is there a more active website than this?
- Replies: 8
- Views: 5209
Re: Is there a more active website than this?
It is good here. there are few of us who publish but it is all interesting for me. I guess you can continue to share qualitatively, but not quantitatively.
- Fri Nov 11, 2022 10:48 am
- Forum: Hybrid Cannons
- Topic: Is there a more active website than this?
- Replies: 8
- Views: 5209
Re: Is there a more active website than this?
I agree with the teacher (Jack). It is useless to try to resist producing holes!!
- Fri Nov 11, 2022 10:44 am
- Forum: Hybrid Cannons
- Topic: A brand-new ignition method
- Replies: 33
- Views: 28647
Re: A brand-new ignition method
You can use my mother-in-law as a target... JOKE! What I'm dying to know is if the whole concept will work well. In my opinion YES! she will do it.
- Fri Nov 11, 2022 7:14 am
- Forum: Hybrid Cannons
- Topic: A brand-new ignition method
- Replies: 33
- Views: 28647
Re: A brand-new ignition method
I would like to focus the conversation on the possibility of turning on a high pressure chamber with a lower pressure one, which is the subject of your publication. what you explain about increasing the pressure with two connected chambers, I know well, because I have already talked about it here. ...
- Thu Nov 10, 2022 6:49 pm
- Forum: Hybrid Cannons
- Topic: A brand-new ignition method
- Replies: 33
- Views: 28647
Re: A brand-new ignition method
I would like to focus the conversation on the possibility of turning on a high pressure chamber with a lower pressure one, which is the subject of your publication. what you explain about increasing the pressure with two connected chambers, I know well, because I have already talked about it here. F...
- Wed Nov 09, 2022 1:27 pm
- Forum: Hybrid Cannons
- Topic: A brand-new ignition method
- Replies: 33
- Views: 28647
Re: A brand-new ignition method
check valve and rupture disc You can use. It will be very delicate to only one check valve so that it does not open prematurely... I tried a valve in these conditions and if you adjust it too high, it does not open, and if it is too little, it loses on the side with the highest The less pressure cha...