"Cé hé sin" (michael-m-mouse)
06/12/2015 at 14:22 • Filed to: Napier, Nomad, Planelopnik
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"Cé hé sin" (michael-m-mouse)
06/12/2015 at 14:22 • Filed to: Napier, Nomad, Planelopnik | 7
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Yesterday we discovered the Napier Nomad, the most unusual engine ever to find its way into the air.
It looked like this so you can see how it was designed - a piston engine sitting on top of (most of) a turboprop
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Somewhat surprisingly it was made to work and was tested for about 800 hours, 160 of which was in the air. Flight testing involved bolting it into the nose of an unsuspecting four engine plane giving I suppose a pentamotor.
Like this. Yes, of course it had twin contra rotating props as well.
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The Nomad was sufficiently powerful that it could propel the plane unaided.
We can now visualise a design meeting at Napier, attended by an all-male group, many of whom wore sensible horn rimmed glasses.
Like this, but with more glasses
“Well, chaps, we’ve designed a two-stroke, horizontally opposed, turbocharged, supercharged, turbo-compound flat 12 diesel engine. How can we improve on this?”
Young Carruthers at the back, who has been reading too many science fiction comics, pipes up. “Afterburners?”
“That’s it! Well done, young man. Let us make an engine such that those who come after us will think us mad”
And it was done.
A two-stroke, horizontally opposed, turbocharged, supercharged, afterburning, turbo-compound flat 12 diesel engine.
Trevor Slattery, ACTOR
> Cé hé sin
06/12/2015 at 14:37 |
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http://oppositelock.kinja.com/napier-railton…
The Naiper engineers were not to be trifled with back in the day.
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Cé hé sin
> Trevor Slattery, ACTOR
06/12/2015 at 14:40 |
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Trevor Slattery, ACTOR
> Cé hé sin
06/12/2015 at 14:43 |
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Dude...that is NOT how the two stroke fired, is it? Please tell me you are kidding? What the heck it that???
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Cé hé sin
> Trevor Slattery, ACTOR
06/12/2015 at 14:50 |
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That’s a Deltic engine, also by Napier. Used in trains and ships. It’s also a two stroke.
james-thomas
> Cé hé sin
06/12/2015 at 14:53 |
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early flux capacitor?
ly2v8-Brian
> Trevor Slattery, ACTOR
06/12/2015 at 14:54 |
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Not this one. This worked like a typical 2stroke
Slave2anMG
> Trevor Slattery, ACTOR
06/12/2015 at 15:04 |
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As noted, it’s a Deltic opposed piston diesel. Notice no valves. One of the three crankshafts rotates rotates in the opposite direction - was found that all three in the same direction created severe vibrations. Compact as heck, two used in a 3300 hp diesel electric locomotive...
Listen to one - nothing like it:
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Trevor Slattery, ACTOR
> Cé hé sin
06/12/2015 at 15:05 |
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I could tell by the chambers and firing sequence that is was a two stroke, but the concept is just AMAZING.
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Cé hé sin
> Trevor Slattery, ACTOR
06/12/2015 at 15:14 |
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The idea came from a Junkers plane engine. Deltic trains were used for about 20 years on high speed routes and there are still a few Deltic engined minesweepers.