metiz
Senior Member
Joined: April 2011
Posts: 297
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Post by metiz on May 17, 2011 9:13:16 GMT -5
Wow...
How much thrust (or Kw) is this engine expected to produce, and how heavy will it be? aditionally, could you make the same engine, only lighter?
The quality on this build is absolutely amazing, I'm thoroughly impressed.
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Post by Johansson on May 17, 2011 10:09:34 GMT -5
According to John it would be possible to reach 150hp on the power turbine shaft or 54kg of thrust. I don´t know the total weight yet since the power turbine section will contain some heavy parts like the gearbox and NGV, but somewhere in the region of 30-40kg I would guess. Thanks!  |
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Post by stoffe64 on May 17, 2011 12:26:19 GMT -5
hello Anders! soon your engine will take off from the ground by the looks of it....  |
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Post by Johansson on May 17, 2011 12:34:48 GMT -5
Nahh, it´s not that lightweight. ;D
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Post by racket on May 17, 2011 16:44:27 GMT -5
Hi Anders
Solid, she's going nowhere :-) .....................is the rear mount a "sliding" mount to accommodate engine axial expansion ??
Cheers
John
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Post by stoffe64 on May 17, 2011 16:47:01 GMT -5
john...what i meant by saying that it would take off was simply that that engine looks like an aircraft turbine engine.....and aircrafts fly as you know ;D
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Post by racket on May 17, 2011 17:37:52 GMT -5
Hi Stephan
LOL, no, I didn't mean it couldn't fly , just that the mounts were nice and strong and wouldn't have any problems holding the engine in place in whatever it was mounted , ............ "regional expression" :-)
Cheers
John
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Post by Johansson on May 18, 2011 0:59:13 GMT -5
Yup, and once the power turbine is made I will use the gearbox/power turbine as the fixed point and ream up the compressor housing mount holes so it too becomes sliding.
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Post by racket on May 18, 2011 4:21:43 GMT -5
Hi Anders
yeh , that gearbox will need to be firmly mounted , much easier to provide some flexibility in the gas producer mounting :-)
Cheers
John
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Post by Johansson on May 18, 2011 9:46:20 GMT -5
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Post by racket on May 18, 2011 16:16:26 GMT -5
Hi Anders
Thats going to be a nice test stand :-)
Heh heh , you might need to return that P2 gauge and get a decent sized one, .................it only reads up to 2.5 bar ..................I can see you going a bit more than that as development progresses ;-)
Cheers
John
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Post by Johansson on May 18, 2011 23:10:00 GMT -5
You know John, when that day comes I will gladly buy a new Autometer gauge.  |
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Post by racket on May 19, 2011 4:11:53 GMT -5
Hi Anders
LOL......what do you mean ...."that day" .............you being a bike rider , it'll be within the first hour .......................heh heh , you won't be able to resist "seeing what she'll do " :-)
Cheers
John
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Post by Johansson on May 19, 2011 6:45:53 GMT -5
He he, you might be correct in that... ;D
Just out of curiosity, what kind of P2´s are we talking about?
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Post by Johansson on May 19, 2011 7:19:22 GMT -5
By the way, I´ve figured out a way to solve the preheat/aftcooling of the engine. I found a cheap 12V fan used for ventilating engine compartments in boats that flows 4m3/min, it will be mounted in the intake screen lid and give the engine that Allison 250 look I always dreamed of.  You won´t be able to tell the two apart:  |
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