18 Nov 2025, 14:52 [ UTC - 5; DST ]
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Post subject: Re: P&W Jet Engine 30 yrs in the making comes to market  Posted: 21 Oct 2015, 18:30 |
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Joined: 01/01/10
Posts: 3503
Post Likes: +2476
Location: Roseburg, Oregon
Aircraft: Citation Mustang
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Username Protected wrote: Lear 23 does two things well, crash and climb. Add a third: Burn lots of fuel!
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Previous A36TN owner
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Post subject: Re: P&W Jet Engine 30 yrs in the making comes to market Posted: 21 Oct 2015, 19:29 |
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Joined: 09/29/10
Posts: 5660
Post Likes: +4882
Company: USAF Simulator Instructor
Location: Wichita Valley Airport (F14)
Aircraft: Bonanza G35
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Username Protected wrote: Ah the good old days. Can't imagine why we'd want to improve on this... The fact the gear is already about 3 seconds into the up cycle suggest a really anemic climb! The large amount of smoke is due to a "wet" takeoff, using water/alcohol injection to allow higher engine power. A consequence is lots of carbon in the exhaust from unburned fuel when the water affects the combustion. Note how similar a KC-135 looks doing a "wet" takeoff: Attachment: 800px-Boeing_KC-135_J57_wet_takeoff.jpg Mike C.
Note also that we are at the departure end of the runway and the KC-135 is just getting airborne. In a hot day at Kadena AB, Okinawa (field elevation about 10 feet), the tankers would use most of the 13,000 foot runway if they were heavy. Those guys were ecstatic when they got the turbofans.
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FTFA RTFM
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Post subject: Re: P&W Jet Engine 30 yrs in the making comes to market Posted: 21 Oct 2015, 22:58 |
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Joined: 11/01/08
Posts: 2713
Post Likes: +733
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Username Protected wrote: Lear 23 does two things well, crash and climb. Add a third: Burn lots of fuel!
And make noise!
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Post subject: Re: P&W Jet Engine 30 yrs in the making comes to market Posted: 22 Oct 2015, 02:52 |
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Joined: 02/01/13
Posts: 291
Post Likes: +37
Aircraft: C35
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Username Protected wrote: Quote: "Up to a 16% reduction in fuel and 75% reduction in ground noise." So, less pollution and quieter. This is what we call innovation and technology in 2015? 45 years ago we had a supersonic transport aircraft flying passengers, we had the SR-71 running around at Mach 3 and 80,000 feet, we had spacecraft capable of landing on the moon, we had the first business jets with climb performance better than their modern competitors ... I'm sorry, but this is NOT groundbreaking or innovative. This just furthers the proof that we have become a society of spineless pansies. You do know we have satellites running around at 600,000 feet at 17,000 mph that can take a picture of your face while you water your grass at night? We’ve also landed on the planet Mars, which is a tad further out than the moon, approximately 200 times the distance. Oh and we have the sexiest jet ever built, the Boeing 787, which can easily accommodate the biggest of asses – have you seen the business class section?
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Post subject: Re: P&W Jet Engine 30 yrs in the making comes to market Posted: 22 Oct 2015, 15:58 |
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Joined: 10/11/14
Posts: 558
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Company: Retired
Location: mostly airborne
Aircraft: Twin Bonanza
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Username Protected wrote: I actually have zero problems with things getting more efficient, even if it means going slower. Aviation is crazily expensive and overpriced - if going a little bit slower saves in costs so that more people can do it, I'm all for it.
I can't wait for electric airplanes with virtual zero engine maintenance and low hourly costs. That might just save GA right there. Fuel guzzling, elitist and overpriced planes won't. Have you thought about an airship? 
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Post subject: Re: P&W Jet Engine 30 yrs in the making comes to market Posted: 24 Oct 2015, 12:49 |
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Joined: 05/23/08
Posts: 6063
Post Likes: +715
Location: CMB7, Ottawa, Canada
Aircraft: TBM - C185 - T206
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Give me a PT6 thats 16% more fuel efficient and the TBM will do 2000 nm on the same fuel.
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Former Baron 58 owner.
Pistons engines are for tractors.
Marc Bourdon
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Post subject: Re: P&W Jet Engine 30 yrs in the making comes to market Posted: 24 Oct 2015, 18:20 |
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Joined: 12/09/13
Posts: 241
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Location: KICT/KFFZ/KLAS
Aircraft: CE25B+/CE25C/DA40
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Username Protected wrote: Give me a PT6 thats 16% more fuel efficient and the TBM will do 2000 nm on the same fuel. It's called a Garrett TPE Marc. 
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Post subject: Re: P&W Jet Engine 30 yrs in the making comes to market Posted: 24 Oct 2015, 20:49 |
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Joined: 12/03/14
Posts: 20748
Post Likes: +26220
Company: Ciholas, Inc
Location: KEHR
Aircraft: C560V
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Username Protected wrote: It's called a Garrett TPE Marc. :duck: It is more like 20%. I've measured my engines in cruise at 0.49 lbs/shp/hr. That doesn't include the jet thrust, include that and it is about 0.45 lbs/eshp/hr. A really well tuned aircraft piston engine is around 0.38 lbs/hp/hr, so I'm getting pretty close. Mike C.
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Email mikec (at) ciholas.com
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Post subject: Re: P&W Jet Engine 30 yrs in the making comes to market Posted: 24 Oct 2015, 21:34 |
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Joined: 10/11/14
Posts: 558
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Company: Retired
Location: mostly airborne
Aircraft: Twin Bonanza
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Username Protected wrote: It's called a Garrett TPE Marc. It is more like 20%. I've measured my engines in cruise at 0.49 lbs/shp/hr. That doesn't include the jet thrust, include that and it is about 0.45 lbs/eshp/hr. A really well tuned aircraft piston engine is around 0.38 lbs/hp/hr, so I'm getting pretty close. Mike C.
Speaking of well tuned piston engines & SPEED (and the exhaust thrust is used on that plane too):
Great, efficient engineering is also always ELEGANT.
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Post subject: Re: P&W Jet Engine 30 yrs in the making comes to market Posted: 24 Oct 2015, 21:39 |
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Joined: 12/03/14
Posts: 20748
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Company: Ciholas, Inc
Location: KEHR
Aircraft: C560V
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Username Protected wrote: Speaking of well tuned piston engines & SPEED What type is that? Edit: Republic XF-12. Only 2 built, never made it. Mike C.
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Post subject: Re: P&W Jet Engine 30 yrs in the making comes to market Posted: 24 Oct 2015, 21:55 |
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Joined: 06/25/10
Posts: 13186
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Company: Summerland Key Airport
Location: FD51
Aircraft: P35, GC1B
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Username Protected wrote: 10 Billion? 30 years? Holy crap! making a better engine is a good idea but if innovation takes this long and costs this much, what does that mean for the future of jet engines? This is why I tend to laugh at millennials who feel that the timeline for innovation of motive power is comparable to things like the advances in iPhones. I think we've come very close to extracting the last bit of power and efficiency out of gasoline/kerosene. Until we turn our eyes and our ambition back to the heavens, we will continue to spend billions on "advances" like the F-35 and quieter jet engines. 
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Last edited on 24 Oct 2015, 22:36, edited 1 time in total.
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Post subject: Re: P&W Jet Engine 30 yrs in the making comes to market Posted: 24 Oct 2015, 22:01 |
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Joined: 06/25/10
Posts: 13186
Post Likes: +21109
Company: Summerland Key Airport
Location: FD51
Aircraft: P35, GC1B
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Username Protected wrote:
So, less pollution and quieter. This is what we call innovation and technology in 2015?
45 years ago we had a supersonic transport aircraft flying passengers, we had the SR-71 running around at Mach 3 and 80,000 feet, we had spacecraft capable of landing on the moon, we had the first business jets with climb performance better than their modern competitors ...
I'm sorry, but this is NOT groundbreaking or innovative. This just furthers the proof that we have become a society of spineless pansies.
You do know we have satellites running around at 600,000 feet at 17,000 mph that can take a picture of your face while you water your grass at night?
So? No one gives a $#!^ until it's a person taking the pic.
Quote: We’ve also landed on the planet Mars, which is a tad further out than the moon, approximately 200 times the distance.
We did?!? What was the name of that astronaut? It wasn't Matt Damon, was it?
Quote: Oh and we have the sexiest jet ever built, the Boeing 787, which can easily accommodate the biggest of asses – have you seen the business class section?
You definition of sexy is as impaired as your belief that landing a multi-billion-dollar hunk of aluminum on another rock qualifies as human exploration.
Until we get back to MANNED space exploration and colonization, the human race is literally doomed to drown in our own excrement.
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Being right too soon is socially unacceptable.
— Heinlein
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Post subject: Re: P&W Jet Engine 30 yrs in the making comes to market Posted: 24 Oct 2015, 22:24 |
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Joined: 10/11/14
Posts: 558
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Company: Retired
Location: mostly airborne
Aircraft: Twin Bonanza
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Username Protected wrote: Ah the good old days. Can't imagine why we'd want to improve on this...  How I love smokin' things!
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