Amazing machine work
Moderator: Harold_V
- neanderman
- Posts: 896
- Joined: Mon Jan 09, 2012 7:15 pm
- Location: Cincinnati, Ohio, USA
Re: Amazing machine work
You guys amaze me...
Ed
LeBlond Dual Drive, 15x30
US-Burke Millrite MVI
Atlas 618
Files, snips and cold chisels
Proud denizen of the former "Machine Tool Capitol of the World"
LeBlond Dual Drive, 15x30
US-Burke Millrite MVI
Atlas 618
Files, snips and cold chisels
Proud denizen of the former "Machine Tool Capitol of the World"
Re: Amazing machine work
That reminds me of an inside joke that was common during the waning days of airliners powered by radial engines. The Wright Turbo-Compound engine, in particular, was noted for emitting flames from the exhaust at higher power settings. A fanciful safety announcement before takeoff would include “Ladies and gentlemen, do not be concerned about the flames coming from the engines...unless they go out.”
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Music isn’t at all difficult. All you gotta do is play the right notes at the right time!
Music isn’t at all difficult. All you gotta do is play the right notes at the right time!
- Bill Shields
- Posts: 10464
- Joined: Fri Dec 21, 2007 4:57 am
- Location: 39.367, -75.765
- Contact:
Re: Amazing machine work
Or crawl up the wing toward the fuel tank ..
Too many things going on to bother listing them.
Re: Amazing machine work
LOL@BigDumbDinosaur
Vision is not seeing things as they are, but as they will be.
Re: Amazing machine work
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Music isn’t at all difficult. All you gotta do is play the right notes at the right time!
Music isn’t at all difficult. All you gotta do is play the right notes at the right time!
Re: Amazing machine work
That was the province of the B-36 bomber.
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Music isn’t at all difficult. All you gotta do is play the right notes at the right time!
Music isn’t at all difficult. All you gotta do is play the right notes at the right time!
- neanderman
- Posts: 896
- Joined: Mon Jan 09, 2012 7:15 pm
- Location: Cincinnati, Ohio, USA
Re: Amazing machine work
Is that the piston-based internal combustion equivalent to 'after burners?'BigDumbDinosaur wrote: ↑Sat Apr 30, 2022 3:15 am
Exhibit A:
https://www.youtube.com/watch?v=taU6qu5pXBo
Ed
LeBlond Dual Drive, 15x30
US-Burke Millrite MVI
Atlas 618
Files, snips and cold chisels
Proud denizen of the former "Machine Tool Capitol of the World"
LeBlond Dual Drive, 15x30
US-Burke Millrite MVI
Atlas 618
Files, snips and cold chisels
Proud denizen of the former "Machine Tool Capitol of the World"
- Bill Shields
- Posts: 10464
- Joined: Fri Dec 21, 2007 4:57 am
- Location: 39.367, -75.765
- Contact:
Re: Amazing machine work
Nah...these flanes provide no extra thrust..unless they reach the fuel tank..-> in which case the thrust is usually omnidirectional.
Too many things going on to bother listing them.
Re: Amazing machine work
I used to communicate with the chief Aerodynamicist on the Mustang, now deceased, and he had numbers on the thrust produced by the exhaust and the radiator outlet. Cold air enters the front of the belly scoop, is heated going through the radiator, and expelled through a reduced opening. A simple turbine engine.
There is quite a bluish white glow seen from the cockpit from the exhaust when flying one at night.
Somewhere, I have a pile of little reports in folders that he used to compile and sent me on areas such as this.
There is quite a bluish white glow seen from the cockpit from the exhaust when flying one at night.
Somewhere, I have a pile of little reports in folders that he used to compile and sent me on areas such as this.
Glenn
Operating machines is perfectly safe......until you forget how dangerous it really is!
Operating machines is perfectly safe......until you forget how dangerous it really is!
Re: Amazing machine work
Bill Shields wrote: ↑Sat Apr 30, 2022 6:39 am Nah...these flanes provide no extra thrust..unless they reach the fuel tank..-> in which case the thrust is usually omnidirectional.
Well, one can always benefit from a little heat to the wings to keep them from icing.
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Music isn’t at all difficult. All you gotta do is play the right notes at the right time!
Music isn’t at all difficult. All you gotta do is play the right notes at the right time!
Re: Amazing machine work
neanderman wrote: ↑Sat Apr 30, 2022 3:45 amIs that the piston-based internal combustion equivalent to 'after burners?'BigDumbDinosaur wrote: ↑Sat Apr 30, 2022 3:15 am
Exhibit A:
https://www.youtube.com/watch?v=taU6qu5pXBo
Well, sort of...
The Wright Turbo-Compound has “power-recovery” turbines (PRT) in the exhaust system that are analogous to the turbine of a turbocharger. However, in the Turbo-Compound design, the three PRTs are connected via hydrodynamic couplings and gear reduction to the crankshaft. An estimated 550 horsepower is added to the engine’s output at maximum continuous throttle (which is less than full throttle) by this arrangement, despite the exhaust backpressure added by the PRTs. For about the same fuel burn rate, some “free” horsepower was obtained, which made the engine more economical to operate during cruise flight.
Getting the right fuel mixture with this arrangement was somewhat tricky. Takeoff is typically done with a relatively rich mixture. Following initial climb-out, engine power is reduced and the mixture is leaned accordingly. Occasionally, pilots would lean out the mixture too much during climb, causing exhaust valve overheating. As the exhaust valves were sodium-filled, they were not made from a single piece of steel and thus more vulnerable to failure.
Once a valve got hot enough, it would break and depending on the cylinder’s position (higher than or lower than the crankshaft centerline), pieces would either end up flying around in the cylinder or being ejected out the exhaust port and into one of the PRTs. Either way, a lot of expensive stuff would get trashed and the engine would now be just along for the ride. This happened often enough that the Lockheed Super Constellation was once referred to as the finest three-engine airliner ever built. A&P mechanics who had to clean up the mess (sometimes a failed engine was salvageable) referred to the PRTs as “parts recovery turbines.”
Given the extraordinary complexity of the Turbo-Compound and the maintenance headaches that went with it, many airlines had a hard time making money with Turbo-Compound-powered planes. I flew once on a Super Connie and also on a Douglas DC-7 (Turbo-Compound powered). In both cases, it was a noisy, vibrating experience. However, I must say watching the exhaust flames was a bit entrancing.
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Music isn’t at all difficult. All you gotta do is play the right notes at the right time!
Music isn’t at all difficult. All you gotta do is play the right notes at the right time!
Re: Amazing machine work
brilliant! Eliminates the need to worry about burnt out light bulbs in the strobes.BigDumbDinosaur wrote: ↑Sat Apr 30, 2022 3:15 am
Exhibit A:
https://www.youtube.com/watch?v=taU6qu5pXBo
Vision is not seeing things as they are, but as they will be.