If you dont mind me asking why is epoxy used? it doesnt seem like a good idea as I wouldnt trust using it on my car. im no expert, im just a machinist so i dont really know anything about this stuff.
Ive been working on a small pulse jet in my garage, along with a small turbine jet.UTA is just right down the street from me. Which classes are most of these engine projects for? This looks like a fun class.
@redsamuraidragon These typically aren't tested as part of a class - mostly research projects conducted by graduate students. You can learn more about what is going on by studying compressible flow and propulsion, which are junior/senior level mechanical and aerospace engineering courses.
Agreed. What supersonic craft would be "stealthy" if it left a contrail so dramatic like this? Perhaps this technology should be put on the after .... I mean .... "backburner" and anti-gravity be the propulsion de jour.
If you were flying a PDE with a single tube that diverged at the end, the pressure gradient presumably could cause the formation of a vortex ring with each detonation wave. I think this is why the 'string of puffs' and 'donuts on a rope' PDE contrail speculation developed. Although physically plausible, I don't think a single divergent tube engine is a good design. Consequently, I am very skeptical of the contrail pictures online that are supposedly from PDEs.
Need a fire suppression system and emergency stop button.
unambitious 1 week ago
If you dont mind me asking why is epoxy used? it doesnt seem like a good idea as I wouldnt trust using it on my car. im no expert, im just a machinist so i dont really know anything about this stuff.
Would a braised joint or weld be better?
neogastropoda1 3 weeks ago
@neogastropoda1 ohhh i just realised its part of the clamp, or is it? lol
neogastropoda1 3 weeks ago
Ive been working on a small pulse jet in my garage, along with a small turbine jet.UTA is just right down the street from me. Which classes are most of these engine projects for? This looks like a fun class.
redsamuraidragon 1 year ago
@redsamuraidragon These typically aren't tested as part of a class - mostly research projects conducted by graduate students. You can learn more about what is going on by studying compressible flow and propulsion, which are junior/senior level mechanical and aerospace engineering courses.
emb8 1 year ago
@emb8 Ahh... Right on.. Thank you..
redsamuraidragon 1 year ago
what are all those hoses there?
JPK1990 1 year ago
Agreed. What supersonic craft would be "stealthy" if it left a contrail so dramatic like this? Perhaps this technology should be put on the after .... I mean .... "backburner" and anti-gravity be the propulsion de jour.
smilingpug 2 years ago
If there is a dramatic contrail then the aircraft can presumably just be flown at night.
emb8 2 years ago
Isn't the PDWE supposed to leave the "string of puffs" as its contrail? One would think this engine would be more erratic.
smilingpug 2 years ago
If you were flying a PDE with a single tube that diverged at the end, the pressure gradient presumably could cause the formation of a vortex ring with each detonation wave. I think this is why the 'string of puffs' and 'donuts on a rope' PDE contrail speculation developed. Although physically plausible, I don't think a single divergent tube engine is a good design. Consequently, I am very skeptical of the contrail pictures online that are supposedly from PDEs.
emb8 2 years ago
Lol, second run did sound a little rough...i suppose splashing slag is never a good sign.
Awesome videos and it looks like a great project. Keep 'em coming!!! :)
jcims 3 years ago