![]() |
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
|
|||
|
|||
![]()
Morgans wrote:
Tell us about your relationship with the Rotax company, and how they felt about the use of their engine, at the power levels it was expected to run in the 500. What was that percentage of maximum power, anyway? Sure, be glad to answer. My relationship with Rotax, at the close of Revolution Helicopter, went back over 18 years. In fact, I was the one that opened Rotax to the gyroplane engine sales market, being the first to accomplish flying a gyroplane with a Rotax engine. I sold over 1,200 engines for them just in gyros alone. They sent me the first 532 liquid cooled Rotax to see if I could make it fly. I did, and opened their market for the larger engines. Rotax and their customers were having over heating problems with the 532. They told everyone it was ok to run the engine at 210 F. I showed them how to run the engine at 160 F, and how it would last longer and be more reliable. They changed to that, and had their airplane builders call me for advice on how to change to running cooler. They sent me the first 582 ever built, to see how it would fly. I did, told them what to change and they did, opening their market for that engine as well. I was the first to use mass amounts 582 engines in helicopters, buying over 500 engines from them. I had, and have a very good working relationship with Rotax. Rotax is the best, and only engine as far as I'm concerned, in the world for lite aviation use. As for the power levels used on the Mini-500 and how much the Rotax 582 could handle, I already wrote and posted all that here on the newsgroups many times. You may want to do some research. Once such post is copied below: "Jul 25, 4:47 pm The 582 Rotax is a good choice for the Mini-500. It has the power necessary to do the job, at the price people will pay. The engine was only ran at 6600 RPM's, which is still a 100% duty cycle for the engine at 70% power reduction. Remember, the same engine in the snowmobile industry will produce 110 hp at 8500 rpm's. Rotax simply derated the engine for aircraft by lowering the RPM's. If you look at the power charts of the snowmobile, the output HP at 6500 rpm is 64HP. No Rotax in a Mini-500 has ever failed due to overexertion, if operated properly. Only to improper installation or improper (or lack of) maintenance. It is the finest light-aircraft engine ever made." The short answer to your question is; the Mini-500 cruses at 70% power available at it's operational RPM, which is at 90% of it's total duty cycle. That is normal for most helicopters. Dennis Fetters Designer of; Air Command 1/plcs Gyroplanes Air Command 2/plcs Gyroplanes Mini-500 1/Plcs Helicopter Voyager-500 2/Plcs Helicopter Excalibur 5/Plcs Turbine Helicopter Star-Lite-A VTUAV Helicopter Star-Lite-B VTUAV Helicopter |
#2
|
|||
|
|||
![]() "Dennis Fetters" wrote The short answer to your question is; the Mini-500 cruses at 70% power available at it's operational RPM, which is at 90% of it's total duty cycle. Hummm, you or someone else is not being truthful, about the percent power and RPM's the engine had to run at. Also, the factory being eager to sell engines for the 500 is not quite what I heard. I know who I will believe. -- Jim in NC |
#3
|
|||
|
|||
![]()
Morgans wrote:
"Dennis Fetters" wrote The short answer to your question is; the Mini-500 cruses at 70% power available at it's operational RPM, which is at 90% of it's total duty cycle. Hummm, you or someone else is not being truthful, about the percent power and RPM's the engine had to run at. He's truthful about the duty cycle! The engine ran for 90% of the flight. |
#4
|
|||
|
|||
![]()
VaVoom wrote:
Morgans wrote: "Dennis Fetters" wrote The short answer to your question is; the Mini-500 cruses at 70% power available at it's operational RPM, which is at 90% of it's total duty cycle. Hummm, you or someone else is not being truthful, about the percent power and RPM's the engine had to run at. He's truthful about the duty cycle! The engine ran for 90% of the flight. I hope you are trying to be funny, or you need to learn what a duty cycle consists of. Don't be ashamed, I find that many people do not know. Also, you cut the important part off...."That is normal for most helicopters". Dennis Fetters Designer of; Air Command 1/plcs Gyroplanes Air Command 2/plcs Gyroplanes Mini-500 1/Plcs Helicopter Voyager-500 2/Plcs Helicopter Excalibur 5/Plcs Turbine Helicopter Star-Lite-A VTUAV Helicopter Star-Lite-B VTUAV Helicopter |
#5
|
|||
|
|||
![]()
Hey, dumbass.
Your record of lies and deceit is a matter of public record. Do you remember the chronology of your little helicopter project I put together a while back? I'm sure that you would like to forget about it, wouldn't you? Also, how much mileage do you think you can get out of the FAA's finding of pilot error? |
#6
|
|||
|
|||
![]()
C.D.Damron wrote:
Hey, dumbass. Nice. I can see already what we're dealing with.... Your record of lies and deceit is a matter of public record. You are welcome to prove this statement by posting a little thing called facts. If you don't have facts, and I know you don't, then you are just another faceless big mouth coward using the newsgroups to spew unfounded statements. I have always backed up anything I said with facts and figures. Please, post what ya got. Do you remember the chronology of your little helicopter project I put together a while back? I'm sure that you would like to forget about it, wouldn't you? You give yourself to much credit. I don't even remember you. But, why don't you look it up and re-post it here again, but please also post my responses I made, and save me the trouble of proving you wrong again. I am quite busy these days. Also, how much mileage do you think you can get out of the FAA's finding of pilot error? Well, sticking to the FACTS is always been best, and I have always done that. So, I guess to answer your question, forever. Try it some time for yourself. Dennis Fetters Designer of; Air Command 1/plcs Gyroplanes Air Command 2/plcs Gyroplanes Mini-500 1/Plcs Helicopter Voyager-500 2/Plcs Helicopter Excalibur 5/Plcs Turbine Helicopter Star-Lite-A VTUAV Helicopter Star-Lite-B VTUAV Helicopter |
#7
|
|||
|
|||
![]() "Dennis Fetters" wrote in message et... You are welcome to prove this statement by posting a little thing called facts. FACT: In your literature, you claimed 2000 hour TBO for non-engine parts while you had never tested any parts for anything approaching 2000 hours. |
#8
|
|||
|
|||
![]()
"Planeman" Fetters wrote:
VaVoom wrote: Morgans wrote: "Dennis Fetters" wrote The short answer to your question is; the Mini-500 cruses at 70% power available at it's operational RPM, which is at 90% of it's total duty cycle. Hummm, you or someone else is not being truthful, about the percent power and RPM's the engine had to run at. He's truthful about the duty cycle! The engine ran for 90% of the flight. I hope you are trying to be funny, or you need to learn what a duty cycle consists of. Don't be ashamed, I find that many people do not know. Also, you cut the important part off...."That is normal for most helicopters". I didn't cut anything off, planeman. |
#9
|
|||
|
|||
![]()
Morgans wrote:
"Dennis Fetters" wrote The short answer to your question is; the Mini-500 cruses at 70% power available at it's operational RPM, which is at 90% of it's total duty cycle. Hummm, you or someone else is not being truthful, about the percent power and RPM's the engine had to run at. I can't speak for what others have told you, nor their honesty about the topic or how gullible you are to believe them. However, me as the designer and manufacturer of the aircraft is stating to you the numbers I given here are correct. I don't care if you believe me, no skin off my teeth. Also, the factory being eager to sell engines for the 500 is not quite what I heard. I can't answer to what you heard, nor can I help what other people tell you, and I can't help what you choose to believe, nor do I care. I can only warrant that I said the above, and I stand behind what I said. Dennis Fetters Designer of; Air Command 1/plcs Gyroplanes Air Command 2/plcs Gyroplanes Mini-500 1/Plcs Helicopter Voyager-500 2/Plcs Helicopter Excalibur 5/Plcs Turbine Helicopter Star-Lite-A VTUAV Helicopter Star-Lite-B VTUAV Helicopter |
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
American nazi pond scum, version two | bushite kills bushite | Naval Aviation | 0 | December 21st 04 10:46 PM |
Hey! What fun!! Let's let them kill ourselves!!! | [email protected] | Naval Aviation | 2 | December 17th 04 09:45 PM |
rec.aviation.aerobatics FAQ | Dr. Guenther Eichhorn | Aerobatics | 0 | November 1st 03 06:27 AM |
Conspiracy Theorists (amusing) | Grantland | Military Aviation | 1 | October 2nd 03 12:17 AM |
rec.aviation.aerobatics FAQ | Dr. Guenther Eichhorn | Aerobatics | 0 | October 1st 03 07:27 AM |