![]() |
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
|
Thread Tools | Display Modes |
|
#1
|
|||
|
|||
![]()
What's this "we" crap?
I've been very clear in the past many years I've been on this group that if I had $150,000, a year, and an engine dyno, I'd build an auto conversion that was turnkey and reliable. That $$$ would include testing at least 3 or 4 to engine destruction. THAT'S how you find out what's weak and what's not. Herein lies the rub. I would have no problems whatsoever with the flying Corkymobile as long as whatever information he presented was factual, full, and complete. Successes AND failures. If I'm going to by into something like an auto conversion, I want to know how it's failed in the past JUST LIKE I KNOW HOW THE LYCOMINGS AND CONTINENTALS HAVE FAILED BECAUSE IT'S PUBLIC RECORD FOR THE LAST 50 YEARS. I hope I didn't scare you with my shouting. 8-) I don't want to be flying and suddenly find that there's a cooling issue, or a heat related failing issue on the ignition or electronics, or an oiling issue on climbout only to call the people and have them tell me (as I've heard so many times before with so many products) "Gee, nobody's EVER had that problem before". Then, when you ask around with people that do have that product, they say "yep, I've been through 3 of those Frizzens on the Fratzit in the last year". I want disclosure on how things go bad, not just how they work Corky, because they might go bad while I'm at 150' on takeoff with trees 1300' ahead. I want to decide what risk level I'm taking, I don't want others to decide it for me. If I don't know what problems they've had, I can't make an informed decision. Again, this might be the best conversion since sliced bread. They surely portray it as such. But they don't give enough information to decide that on the website and my email has gone curiously unanswered. Do they only respond to supporters and not people with critical questions? I think that Bull**** flag just went up a little higher. John Stricker "Corky Scott" wrote in message ... Should all experimenting stop because some appear inadaquately thought through or improperly assembled? Or should we learn from the failures of those who tried ahead of us? In other words, should we seek solutions to known problems, or give up? Corky Scott |
#2
|
|||
|
|||
![]()
John Stricker wrote:
If I'm going to by into something like an auto conversion, I want to know how it's failed in the past JUST LIKE I KNOW HOW THE LYCOMINGS AND CONTINENTALS HAVE FAILED BECAUSE IT'S PUBLIC RECORD FOR THE LAST 50 YEARS. I hope I didn't scare you with my shouting. 8-) Not me, anyway, but I have an honest question: Do major GA engine manufacturers make data on failures *in development* available to the public? Can we see test-to-failure data on the new engines Lycoming, Superior, Mattituck, etc. are putting out for homebuilts? Where? Seems to me what an auto conversion needs is a 'sugar daddy' to put up big $$$ to fund develompent and testing testing testing. I'm not holding my breath. Dave 'enquiring mind' Hyde |
#3
|
|||
|
|||
![]()
Dave,
Can we? I don't know if FOI covers that, but the FAA certification division sure can. And they have the failure reports on file. That's the point, though. These conversions AREN'T certified. In effect WE are the certifying entity and as such the responsibility falls on us and we can't make that decision with glossed over reports of "trouble-free" service. John Stricker "Dave Hyde" wrote in message ... John Stricker wrote: If I'm going to by into something like an auto conversion, I want to know how it's failed in the past JUST LIKE I KNOW HOW THE LYCOMINGS AND CONTINENTALS HAVE FAILED BECAUSE IT'S PUBLIC RECORD FOR THE LAST 50 YEARS. I hope I didn't scare you with my shouting. 8-) Not me, anyway, but I have an honest question: Do major GA engine manufacturers make data on failures *in development* available to the public? Can we see test-to-failure data on the new engines Lycoming, Superior, Mattituck, etc. are putting out for homebuilts? Where? Seems to me what an auto conversion needs is a 'sugar daddy' to put up big $$$ to fund develompent and testing testing testing. I'm not holding my breath. Dave 'enquiring mind' Hyde |
#4
|
|||
|
|||
![]()
John Stricker wrote:
These conversions AREN'T certified. No engine installed in a homebuilt is. In effect WE are the certifying entity and as such the responsibility falls on us and we can't make that decision with glossed over reports of "trouble-free" service. I agree absolutely. I also realize and accept that the developer is hardly an impartial observer and is likely to sugar-coat their results. I'd never buy an airplane or an engine (certificated or otherwise) without digging deeper than a website. I'll never be the first to buy or fly. Dave 'caveat surfer' Hyde Lycoming-powered RV-4 |
#5
|
|||
|
|||
![]()
Dave,
Now you're parsing words, sort of. You can put a certified, new from Lycoming engine in a homebuilt. Vans sells them all the time. You're right, though, that once it's in there it's no longer certified in that aircraft. That's not the point. The point is that part of that cost is what's left of original R&D as well as ongoing development of the engine. A lot of it is also maintaining the standards of parts, assembly, and QA that's required to make it a certified engine, regardless of whether or not it's certified in that airframe. That costs money and infers a certain standard of testing and reliability, even though we all know that machines can and do break at any time. I'll take the odds on a certified engine over an auto conversion any time. I didn't infer that a website should be all the research one should do. It is often the FIRST source of information for those on the list and when it shows such a one sided view, then your "caveat surfer" tag is definitely in order. John Stricker "Dave Hyde" wrote in message ... John Stricker wrote: These conversions AREN'T certified. No engine installed in a homebuilt is. In effect WE are the certifying entity and as such the responsibility falls on us and we can't make that decision with glossed over reports of "trouble-free" service. I agree absolutely. I also realize and accept that the developer is hardly an impartial observer and is likely to sugar-coat their results. I'd never buy an airplane or an engine (certificated or otherwise) without digging deeper than a website. I'll never be the first to buy or fly. Dave 'caveat surfer' Hyde Lycoming-powered RV-4 |
#6
|
|||
|
|||
![]() "Dave Hyde" wrote in message ... John Stricker wrote: These conversions AREN'T certified. No engine installed in a homebuilt is. Am I reading you correctly? Has the rule changed? I remember 25 hours fly-off time on a certified engine in a new experimental and 40 in an experimental aircraft with a non-certified engine. If the certified engine later comes out of the experimental, as long as it has been maintained as a certified engine, it can go back into a certified aircraft, right? But if you do something to the engine to cause it to lose its certification, like using non-approved parts, you must remove the data plate. Back to the FARs. In effect WE are the certifying entity and as such the responsibility falls on us and we can't make that decision with glossed over reports of "trouble-free" service. I agree absolutely. I also realize and accept that the developer is hardly an impartial observer and is likely to sugar-coat their results. I'd never buy an airplane or an engine (certificated or otherwise) without digging deeper than a website. I'll never be the first to buy or fly. Dave 'caveat surfer' Hyde Lycoming-powered RV-4 |
#7
|
|||
|
|||
![]()
On Tue, 28 Oct 2003 20:02:59 -0600, John Stricker wrote:
Dave, Can we? I don't know if FOI covers that, but the FAA certification division sure can. And they have the failure reports on file. That's the point, though. These conversions AREN'T certified. In effect WE are the certifying entity and as such the responsibility falls on us and we can't make that decision with glossed over reports of "trouble-free" service. John Stricker If the failures happen during development, and they make design changes to address the failure before they present the engine to the FAA for type certification, then the FAA may very well not have anything on file. The FAA makes a very big point about not getting out the microscope until they are presented a test article that conforms to the type design. The definition of the type design evolves during the development process as problems are found and fixed. "Dave Hyde" wrote in message ... John Stricker wrote: If I'm going to by into something like an auto conversion, I want to know how it's failed in the past JUST LIKE I KNOW HOW THE LYCOMINGS AND CONTINENTALS HAVE FAILED BECAUSE IT'S PUBLIC RECORD FOR THE LAST 50 YEARS. I hope I didn't scare you with my shouting. 8-) Not me, anyway, but I have an honest question: Do major GA engine manufacturers make data on failures *in development* available to the public? Can we see test-to-failure data on the new engines Lycoming, Superior, Mattituck, etc. are putting out for homebuilts? Where? Seems to me what an auto conversion needs is a 'sugar daddy' to put up big $$$ to fund develompent and testing testing testing. I'm not holding my breath. Dave 'enquiring mind' Hyde -- Kevin Horton RV-8 (finishing kit) Ottawa, Canada http://go.phpwebhosting.com/~khorton/rv8/ e-mail: khorton02(_at_)rogers(_dot_)com |
#8
|
|||
|
|||
![]() Kevin Horton wrote: Dave, Can we? I don't know if FOI covers that, but the FAA certification division sure can. And they have the failure reports on file. That's the point, though. These conversions AREN'T certified. In effect WE are the certifying entity and as such the responsibility falls on us and we can't make that decision with glossed over reports of "trouble-free" service. John Stricker If the failures happen during development, and they make design changes to address the failure before they present the engine to the FAA for type certification, then the FAA may very well not have anything on file. The FAA makes a very big point about not getting out the microscope until they are presented a test article that conforms to the type design. The definition of the type design evolves during the development process as problems are found and fixed. ++++++++++++++++++++++++++++ Picking nits are we? g Barnyard BOb -- |
#9
|
|||
|
|||
![]()
That's a valid point. Let's say we have a couple of early versions break
crankshafts. The cranks are changed, or maybe the balance is changed and all appears to be well. The article is submitted with test results for certification. It is certified. A couple dozen are placed into service. Crankshafts start breaking. Think the FAA will have any problems getting those pre-presentation test results? Not if that manufacturer ever wants to sell anything as certified again, they won't. Certified Manufacturers are that way and charge what they do for a reason. That reason IS the certification. If it was easy to be certified, their SeaBee conversion would be certified, but it's not an easy thing to do or maintain. John Stricker "Kevin Horton" wrote in message news ![]() On Tue, 28 Oct 2003 20:02:59 -0600, John Stricker wrote: Dave, Can we? I don't know if FOI covers that, but the FAA certification division sure can. And they have the failure reports on file. That's the point, though. These conversions AREN'T certified. In effect WE are the certifying entity and as such the responsibility falls on us and we can't make that decision with glossed over reports of "trouble-free" service. John Stricker If the failures happen during development, and they make design changes to address the failure before they present the engine to the FAA for type certification, then the FAA may very well not have anything on file. The FAA makes a very big point about not getting out the microscope until they are presented a test article that conforms to the type design. The definition of the type design evolves during the development process as problems are found and fixed. "Dave Hyde" wrote in message ... John Stricker wrote: If I'm going to by into something like an auto conversion, I want to know how it's failed in the past JUST LIKE I KNOW HOW THE LYCOMINGS AND CONTINENTALS HAVE FAILED BECAUSE IT'S PUBLIC RECORD FOR THE LAST 50 YEARS. I hope I didn't scare you with my shouting. 8-) Not me, anyway, but I have an honest question: Do major GA engine manufacturers make data on failures *in development* available to the public? Can we see test-to-failure data on the new engines Lycoming, Superior, Mattituck, etc. are putting out for homebuilts? Where? Seems to me what an auto conversion needs is a 'sugar daddy' to put up big $$$ to fund develompent and testing testing testing. I'm not holding my breath. Dave 'enquiring mind' Hyde -- Kevin Horton RV-8 (finishing kit) Ottawa, Canada http://go.phpwebhosting.com/~khorton/rv8/ e-mail: khorton02(_at_)rogers(_dot_)com |
#10
|
|||
|
|||
![]()
On 28 Oct 2003 03:49 PM, Dave Hyde posted the following:
John Stricker wrote: If I'm going to by into something like an auto conversion, I want to know how it's failed in the past JUST LIKE I KNOW HOW THE LYCOMINGS AND CONTINENTALS HAVE FAILED BECAUSE IT'S PUBLIC RECORD FOR THE LAST 50 YEARS. I hope I didn't scare you with my shouting. 8-) Not me, anyway, but I have an honest question: Do major GA engine manufacturers make data on failures *in development* available to the public? Can we see test-to-failure data on the new engines Lycoming, Superior, Mattituck, etc. are putting out for homebuilts? Where? Seems to me what an auto conversion needs is a 'sugar daddy' to put up big $$$ to fund develompent and testing testing testing. I'm not holding my breath. I doubt if anybody would be willing to pay the sort of prices that would be required to give the sugar daddy a decent return on his investment. Probably cheaper to buy a new lycoming at that point. Also, getting deep pockets involved would most likely only lead to those pockets being picked by the lawyers for the grieving widow. I'd like to be wrong. ---------------------------------------------------- Del Rawlins- Remove _kills_spammers_ to reply via email. Unofficial Bearhawk FAQ website: http://www.rawlinsbrothers.org/bhfaq/ |
|
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
human powered flight | patrick timony | Home Built | 10 | September 16th 03 03:38 AM |
Illusive elastic powered Ornithopter | Mike Hindle | Home Built | 6 | September 15th 03 03:32 PM |
Pre-Rotator Powered by Compressed Air? | nuke | Home Built | 8 | July 30th 03 12:36 PM |
Powered Parachute Plans | MJC | Home Built | 4 | July 15th 03 07:29 PM |
Powered Parachute Plans- correction | Cy Galley | Home Built | 0 | July 11th 03 03:43 AM |