Search found 1190 matches
- Fri May 22, 2009 9:20 pm
- Forum: Tools and Construction
- Topic: A Better Fuel Alternative for Testing?
- Replies: 4
- Views: 4709
Re: A Better Fuel Alternative for Testing?
I wonder how long a cylinder would last in __ application. I have a little gas forge I run off the natural gas line headed to my BBQ, doesnt work as well as it did on propane though had to repipe the whole thing.
- Sat May 16, 2009 8:06 pm
- Forum: Tools and Construction
- Topic: Can you spin metal on a regular metal lathe?
- Replies: 7
- Views: 6648
Re: Can you spin metal on a regular metal lathe?
Thank you, ive seen the site but will need to order the dvd.
- Sat May 16, 2009 6:20 pm
- Forum: Tools and Construction
- Topic: Can you spin metal on a regular metal lathe?
- Replies: 7
- Views: 6648
Re: Can you spin metal on a regular metal lathe?
Thank you, good advice. Im trying to do some copper work and the video I watched where they worked on copper involved a big torch keeping the metal hot while they spun it at low speed. I cant find a chart to show what rpm to use for what metal but first steps first find some tools and make the toolr...
- Sat May 16, 2009 5:40 pm
- Forum: Tools and Construction
- Topic: Can you spin metal on a regular metal lathe?
- Replies: 7
- Views: 6648
Re: Can you spin metal on a regular metal lathe?
Their lathe looks like more than just a toolrest and special set of tools...hmm
- Sat May 16, 2009 4:55 am
- Forum: Tools and Construction
- Topic: Can you spin metal on a regular metal lathe?
- Replies: 7
- Views: 6648
Can you spin metal on a regular metal lathe?
Subject kinda states it, was wondering if I can use my hobby lathe to spin small pieces without major modifications.
- Sat May 16, 2009 4:54 am
- Forum: Unconventional, Multi-Mode and Hybrid Jets
- Topic: "Afterburners on valveless pulse jets
- Replies: 3
- Views: 8221
Re: "Afterburners on valveless pulse jets
In the ramjet forums somewhere is a ramjet being pumped by a valveless PJ, similar kinda but it worked very well if I recall.
- Tue May 12, 2009 10:36 pm
- Forum: Gas turbine forum
- Topic: Parallel Spool engine - Has this been tried?
- Replies: 3
- Views: 5619
- Fri Dec 05, 2008 11:34 pm
- Forum: Ramjet forum
- Topic: Thinking about ram-rockets
- Replies: 9
- Views: 14011
Re: Thinking about ram-rockets
Producing thrust =/= net thrust, especially in something I build. So even if the ramjet makes thrust its probably not enough to keep it moving skyward. This and all projects are on hold while I'm at school cant burn down the new house!!
- Wed Nov 12, 2008 12:26 am
- Forum: Ramjet forum
- Topic: Thinking about ram-rockets
- Replies: 9
- Views: 14011
Re: Thinking about ram-rockets
I wonder if at apogee, all the forces so go poof for a split second or so right? Doin some more research
- Mon Nov 10, 2008 6:59 pm
- Forum: Ramjet forum
- Topic: Thinking about ram-rockets
- Replies: 9
- Views: 14011
Re: Thinking about ram-rockets
Im concerned about fuel shut off if the thing noses over, any ideas?
- Mon Nov 10, 2008 3:51 pm
- Forum: Ramjet forum
- Topic: Thinking about ram-rockets
- Replies: 9
- Views: 14011
Re: Thinking about ram-rockets
Hmm, gotta rethink it then.
Would the compressed air bottom out in a tank too at these accelerations?
Would the compressed air bottom out in a tank too at these accelerations?
- Mon Nov 10, 2008 8:17 am
- Forum: Off topic forum
- Topic: I have received a rude reminder
- Replies: 4
- Views: 5176
Re: I have received a rude reminder
I injured my knee last summer, its not bad enough to need surgery but not good enough to handle the stairs at my new place. I'm out of pain meds, do I go purposely mess up my knee to get surgery covered (make it looks like an accident :P ) or bite my lip and suffer through it Totally kidding about i...
- Mon Nov 10, 2008 8:11 am
- Forum: Ramjet forum
- Topic: Thinking about ram-rockets
- Replies: 9
- Views: 14011
Thinking about ram-rockets
Took a good long look at my propane torch today and wondered if it was the key to making a hobby ramjet-boosted rocket. Even if the ramjet doesnt boost the rocket any higher would be cool to have a giant controlled torch shoot out the back. I stuck this in the ramjet forum b/c I fear the ramjet's fu...
- Mon Nov 10, 2008 7:43 am
- Forum: Unconventional, Multi-Mode and Hybrid Jets
- Topic: Pressure gain combustion ?'s
- Replies: 17
- Views: 21198
Re: Pressure gain combustion ?'s
Just been thinking and playing around in the garage.... At what point is induced flow "bad" for a pj? Partial chokes could be setup to restrict the high-speed/flow of air so the pj continues to run at a good pace but the turbine is allowed to do as it wishes even if thats just push air through that ...
- Thu Oct 09, 2008 12:07 am
- Forum: Ramjet forum
- Topic: Flight SFRJ Paraffin Development
- Replies: 9
- Views: 12458
Re: Flight SFRJ Paraffin Development
CoE seems a bit topheavy? I wanna build one!
I probably meant CoP but am too drunk to know...
I probably meant CoP but am too drunk to know...