25 Apr 2024, 08:08 [ UTC - 5; DST ]
|
Username Protected |
Message |
Username Protected
|
Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die Posted: 14 Feb 2021, 18:51 |
|
|
|
|
|
Joined: 05/11/10 Posts: 12405 Post Likes: +11415 Location: Indiana
Aircraft: Cessna 185, RV-7
|
|
Username Protected wrote: You are making assumptions not in evidence. . . . I’m very nearly quoting him.
|
|
Top |
|
Username Protected
|
Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die Posted: 14 Feb 2021, 18:52 |
|
|
|
|
Joined: 12/03/14 Posts: 19252 Post Likes: +23622 Company: Ciholas, Inc Location: KEHR
Aircraft: C560V
|
|
Username Protected wrote: He has gone further than the vast majority of you naysayers have stated. I disagree, he hasn't even come close to the mundane performance the early critics expected he could achieve. I've seen nothing that suggests this project has any merit, at least not for how to design a airplane. As for entertainment, well... Mike C.
_________________ Email mikec (at) ciholas.com
|
|
Top |
|
Username Protected
|
Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die Posted: 14 Feb 2021, 20:25 |
|
|
|
|
|
Joined: 05/13/14 Posts: 8354 Post Likes: +6582 Location: Central Texas (KTPL)
Aircraft: PA-46-310P
|
|
Username Protected wrote: I assume he may be a fool. But not a total idiot. He has gone further than the vast majority of you naysayers have stated.
No doubt. I didn't think he'd successfully fly it. And his tenacity is at level 10. His discipline and self-awareness are near the bottom thoug.
|
|
Top |
|
Username Protected
|
Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die Posted: 14 Feb 2021, 22:03 |
|
|
|
|
|
Joined: 07/06/14 Posts: 3014 Post Likes: +1995 Location: MA
Aircraft: Cessna 340A
|
|
Username Protected wrote: Is that related to the oil leak and subsequent loss of power? I think he's saying it's unrelated, if I understood correctly. That's not what I understood. I thought he was saying that the rod failure did not cause the engine to seize (since it could still spin), he still thinks the turbo failing suffocated the engine and that's why it stopped. I believe he assumed that the rod failure was related to the loss of oil, though he didn't state that explicitly. Myself, I'd guess that one reason the rod could break would be if the piston was no longer sliding well inside the cylinder, due to the loss of oil and increased friction. And the increase in friction could be what caused the engine to seize. In any case, it's good that the problems with this engine were obvious enough that he is moving on to a new one. If it had started and run, it's not clear what his plan would have been.
|
|
Top |
|
Username Protected
|
Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die Posted: 15 Feb 2021, 00:58 |
|
|
|
|
Joined: 03/15/16 Posts: 450 Post Likes: +346 Location: NC
Aircraft: Looking for one
|
|
Username Protected wrote: I suspect the guy is learning and the second plane will solve most problems and create some new ones. The current aircraft is not marketable even as a kit. I’ve never heard him mention a 2nd prototype. He plans on going straight into production. He has some major hurdles with the weight loss program. The Fuse was flexing so bad he was having to use angle iron to stiffen areas up. According to turbo experts, he has the wrong setup up. There’s not many things he doesn’t need to work on. It’s going to take another $3 million.
|
|
Top |
|
Username Protected
|
Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die Posted: 15 Feb 2021, 09:21 |
|
|
|
|
|
Joined: 04/26/13 Posts: 19966 Post Likes: +19716 Location: Columbus , IN (KBAK)
Aircraft: 1968 Baron D55
|
|
Username Protected wrote: In any case, it's good that the problems with this engine were obvious enough that he is moving on to a new one. If it had started and run, it's not clear what his plan would have been. It's pretty clear to me. Until he couldn't get it to start he was assuming that the problem was with the turbocharger that he just overhauled. Problem solved. If it ran he was going to fly it. As to what he's doing now, I'd like to correct one thing that everyone seems to be saying. He is not getting a new engine. He is getting a replacement engine. He apparently did what we did last week and looked online for Audi Diesel engines from 2014 A7s and picked one that he liked the sound of for around $5000. This is a used car engine of unknown history. The only thing that can be said for it is that it likely runs. What he's saying about the forty hours and going to production, in light of what all we know, sounds more and more like a race against the clock for him. It's feeling a bit like the house of cards that it is, and I think he wants to get something packaged up and salable before the whole thing collapses and he has nowhere to go.
_________________ My last name rhymes with 'geese'.
|
|
Top |
|
Username Protected
|
Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die Posted: 15 Feb 2021, 15:30 |
|
|
|
|
Joined: 11/03/08 Posts: 14582 Post Likes: +22963 Location: Peachtree City GA / Stoke-On-Trent UK
Aircraft: A33
|
|
Been there. Rod failure last year, low hours. Stopped deliveries, quarantined engines for 100 serial numbers either side. Flew some people to the other side of the world to investigate. Flew parts to a met lab. Sat in endless meetings. Built the customer a new engine and a lot more. Did a partial teardown of the customer's other new engines. Babysat them all through an additional 10k km fault free running demo.
What kind of business plan is it to limp through all of 40 hours with multiple parts changes along the way and think something has been accomplished ????? 40 hours is what you or I do after we build a well proven kit design. It's not the bar for a manufacturer.
Please login or Register for a free account via the link in the red bar above to download files.
|
|
Top |
|
Username Protected
|
Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die Posted: 15 Feb 2021, 16:22 |
|
|
|
|
Joined: 12/03/14 Posts: 19252 Post Likes: +23622 Company: Ciholas, Inc Location: KEHR
Aircraft: C560V
|
|
Username Protected wrote: Rod failure last year, low hours. Stopped deliveries, quarantined engines for 100 serial numbers either side. Flew some people to the other side of the world to investigate. Flew parts to a met lab. Sat in endless meetings. Built the customer a new engine and a lot more. Did a partial teardown of the customer's other new engines. Babysat them all through an additional 10k km fault free running demo. And the root cause was? Mike C.
_________________ Email mikec (at) ciholas.com
|
|
Top |
|
Username Protected
|
Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die Posted: 15 Feb 2021, 18:05 |
|
|
|
|
Joined: 12/12/20 Posts: 656 Post Likes: +573
|
|
Username Protected wrote:
Some had doubts of running a car engine 80%+ continuous reliably.
Here’s your sign. This whole venture predates my following this forum and this thread. I can't imagine any car engine run at a duty cycle like that.
|
|
Top |
|
Username Protected
|
Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die Posted: 15 Feb 2021, 18:16 |
|
|
|
|
Joined: 05/11/18 Posts: 59 Post Likes: +10 Location: SBA
Aircraft: T-34A
|
|
Does the new/used engine require a time re-set of the 40 hours? Or can he get it signed off since it may be same model of engine?
_________________ 1955 T-34A Mentor (IO-550-B)
|
|
Top |
|
|
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot post attachments in this forum
|
Terms of Service | Forum FAQ | Contact Us
BeechTalk, LLC is the quintessential Beechcraft Owners & Pilots Group providing a
forum for the discussion of technical, practical, and entertaining issues relating to all Beech aircraft. These include
the Bonanza (both V-tail and straight-tail models), Baron, Debonair, Duke, Twin Bonanza, King Air, Sierra, Skipper, Sport, Sundowner,
Musketeer, Travel Air, Starship, Queen Air, BeechJet, and Premier lines of airplanes, turboprops, and turbojets.
BeechTalk, LLC is not affiliated or endorsed by the Beechcraft Corporation, its subsidiaries, or affiliates.
Beechcraft™, King Air™, and Travel Air™ are the registered trademarks of the Beechcraft Corporation.
Copyright© BeechTalk, LLC 2007-2024
|
|
|
|