banner
banner

29 Mar 2024, 08:37 [ UTC - 5; DST ]


Concorde Battery (banner)



Reply to topic  [ 4045 posts ]  Go to page Previous  1 ... 220, 221, 222, 223, 224, 225, 226 ... 270  Next
Username Protected Message
 Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die
PostPosted: 14 Feb 2021, 18:51 
Offline


User avatar
 Profile




Joined: 05/11/10
Posts: 12365
Post Likes: +11354
Location: Indiana
Aircraft: Cessna 185, RV-7
Username Protected wrote:
You are making assumptions not in evidence. . . .

I’m very nearly quoting him.


Top

 Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die
PostPosted: 14 Feb 2021, 18:52 
Offline


 WWW  Profile




Joined: 12/03/14
Posts: 19252
Post Likes: +23615
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

 Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die
PostPosted: 14 Feb 2021, 19:10 
Offline




User avatar
 Profile




Joined: 12/10/07
Posts: 30432
Post Likes: +10539
Location: Minneapolis, MN (KFCM)
Aircraft: 1970 Baron B55
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.
I suspect several of the cynics could not design a kite.

Well, I'm a cynic and I have successfully designed and built a kite or two. Nothing I'd want to fly in though. :peace:

_________________
-lance

It's easier to fool people than to convince them that they have been fooled.


Top

 Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die
PostPosted: 14 Feb 2021, 20:25 
Offline


User avatar
 Profile




Joined: 05/13/14
Posts: 8308
Post Likes: +6508
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

 Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die
PostPosted: 14 Feb 2021, 22:03 
Offline


User avatar
 Profile




Joined: 07/06/14
Posts: 2978
Post Likes: +1967
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

 Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die
PostPosted: 14 Feb 2021, 22:17 
Offline



 Profile




Joined: 03/05/14
Posts: 2848
Post Likes: +2868
Company: WA Aircraft
Location: Fort Worth, TX (T67)
Aircraft: 1969 Bonanza E33C
I think he is ignoring the elephant in the room with respect to his rod failure.

250 degree oil temps wherever it’s getting measured spinning 3200 RPMs and about 275HP with overheating water temps.

Not good on the ol journal bearings. Journal bearings rely on the hydraulic wedge to operate properly. It needs the proper viscosity to do so effectively. Oil breaks down under those kind of temp and pressures. When was the last oil change? And expecting it to continue to run high power, high pressures, high temperatures and high rpms is a serious long shot.

Some had doubts of running a car engine 80%+ continuous reliably.

Here’s your sign.


Top

 Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die
PostPosted: 15 Feb 2021, 00:58 
Offline


 Profile




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

 Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die
PostPosted: 15 Feb 2021, 09:21 
Offline



User avatar
 Profile




Joined: 04/26/13
Posts: 19768
Post Likes: +19436
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

 Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die
PostPosted: 15 Feb 2021, 09:47 
Offline


User avatar
 Profile




Joined: 05/17/10
Posts: 4402
Post Likes: +1719
Location: canuck
Aircraft: x23mouse
turbo O ring failure ~ 1:26 in the vid

_________________
nightwatch...


Top

 Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die
PostPosted: 15 Feb 2021, 10:50 
Offline



 Profile




Joined: 12/04/09
Posts: 1132
Post Likes: +418
Location: phoenix, AZ (KDVT)
Aircraft: 1968 Bonanza V35A
Does he have a day job or did he inherit a butt load of money?


Top

 Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die
PostPosted: 15 Feb 2021, 15:30 
Offline


 Profile




Joined: 11/03/08
Posts: 14529
Post Likes: +22860
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

 Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die
PostPosted: 15 Feb 2021, 16:22 
Offline


 WWW  Profile




Joined: 12/03/14
Posts: 19252
Post Likes: +23615
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

 Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die
PostPosted: 15 Feb 2021, 16:27 
Offline


User avatar
 Profile




Joined: 05/01/14
Posts: 8706
Post Likes: +13324
Location: Операционный офис КГБ
Aircraft: TU-104
40 hours is what he needs before the FAA will let him fly cross country to relocate the plane outside his approved test area. It should in no way be related to the amount of testing done before offering a kit for sale to the general public.

I would hope that once he “goes into production” that the first “production” aircraft, which will presumably have some MAJOR redesign efforts baked in, will get significantly more than 40 hours worth of testing for both the airframe and power plant. I can’t imagine his company would get any form of liability insurance without testing, but who knows what Peter is planning.

_________________
Be kinder than I am. It’s a low bar.
Flight suits = superior knowledge


Top

 Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die
PostPosted: 15 Feb 2021, 18:05 
Offline


 Profile




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

 Post subject: Re: Raptor Aircraft 5 Seat Pressurized 3,600 NM Range Die
PostPosted: 15 Feb 2021, 18:16 
Offline


 Profile




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

Display posts from previous:  Sort by  
Reply to topic  [ 4045 posts ]  Go to page Previous  1 ... 220, 221, 222, 223, 224, 225, 226 ... 270  Next




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

Jump to:  

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

.geebee-85x50.jpg.
.kingairnation-85x50.png.
.dbm.jpg.
.daytona.jpg.
.Marsh.jpg.
.cav-85x50.jpg.
.gallagher_85x50.jpg.
.chairmanaviation-85x50.jpg.
.bullardaviation-85x50-2.jpg.
.blackwell-85x50.png.
.lucysaviation-85x50.png.
.concorde.jpg.
.camguard.jpg.
.blackhawk-85x100-2019-09-25.jpg.
.Wentworth_85x100.JPG.
.avionwealth-85x50.png.
.jandsaviation-85x50.jpg.
.wat-85x50.jpg.
.planelogix-85x100-2015-04-15.jpg.
.avfab-85x50-2018-12-04.png.
.traceaviation-85x150.png.
.tat-85x100.png.
.shortnnumbers-85x100.png.
.Genesys_85x50.jpg.
.wilco-85x100.png.
.one-mile-up-85x100.png.
.AAI.jpg.
.centex-85x50.jpg.
.pure-medical-85x150.png.
.CiESVer2.jpg.
.ei-85x150.jpg.
.stanmusikame-85x50.jpg.
.headsetsetc_Small_85x50.jpg.
.tempest.jpg.
.Foreflight_85x50_color.png.
.temple-85x100-2015-02-23.jpg.
.airmart-85x150.png.
.kingairacademy-85x100.png.
.ssv-85x50-2023-12-17.jpg.
.aeroled-85x50-2022-12-06.jpg.
.kadex-85x50.jpg.
.saint-85x50.jpg.
.aircraftassociates-85x50.png.
.pdi-85x50.jpg.
.sierratrax-85x50.png.
.boomerang-85x50-2023-12-17.png.
.SCA.jpg.
.ABS-85x100.jpg.
.midwest2.jpg.
.bpt-85x50-2019-07-27.jpg.
.aircraftferry-85x50.jpg.
.Wingman 85x50.png.
.Rocky-Mountain-Turbine-85x100.jpg.
.jetacq-85x50.jpg.
.aviationdesigndouble.jpg.
.MountainAirframe.jpg.
.Latitude.jpg.