Hello, and thanks for viewing. In fact I did something like that. Mine only needed collective, so that made it easier. I didn't need to articulate the device, so in a since it is half a helicopter swash plate!
Because with my later venture into the designing and manufacturing helicopters, I learned a great deal about the efficient transmission of power. Hydraulics in this case is a very inefficient way to do the job. Look at the heat it produces in just one minute. Heat is loss of power. Now I could build a simple mechanical device that would transmit even more power, and do so without overheating. It would be smaller and lighter, less expensive to build, with less maintenance and easier to operate.
Hello Bob, Flex cables are an easy way to transfer power, but not very efficient compared to a mechanical gear drive, like in helicopters. If I did do it again, then I would use a real transmission. I learned a lot over my helicopter designing days.
The prerotator also weights about 25 pounds. So we had around a 50 pound system. But, that gyro in this film was not a 254 pound gyro, it was much heavier. It had a more powerful Rotax 532, not the little Rotax 447 that made the gyro only 253 pounds. You need the extra horsepower to do jump takeoffs. Even then, I would not do it again with hydraulics.
I had an idea for a helicopter which is fitted with 2 short blades perpendicular to the long blades, this might improve the overall efficiency of the disc because airspeed is faster toward the outer rim. What are your thoughts on this? If rocket drives where fitted to the tips of the short rotors they would only need to travel half the distance per revolution than if they where fitted on the long blades, possibly improving fuel economy, like driving in a higher gear.
I think it was some military procurement company, I guess needing the technology for something they were already working on. It wouldn't have been Robinson, I know old Frank, and he certainly can engineer his own stuff, he don't need me! He is on the list of the top-five people I respect most in the world. Thank for watching.
Why not do it again with Hydraulics? It sounded like a decent method to jump the gyro. Looks like the closest thing we have for a jump gyro now is the MLS by Larry Neal, and the Carter Copter demonstrator. Looks like it will be s few years yet until a reliable modular jump system can be incorporated into gyroplanes.
It was a very old idea I built in the late 1980's. Since then I know better ways to accomplish it, but since I no longer wish to do business with the public, I had no need to develop it further.
thanks!so what did the prerotator weigh?Im thinking if a gyro without all this weighs 254 pounds or so,how much extra is the whole jump takeoff add to a barebones gyro.thanks.
YES QUITE TRUE ,BUT IF YOU MISSED UP YOUR STEPS YOU WILL END UP CRASHING,YOU NEED TO PRACTICE THIS A LOT ON THE GROUND ,BEFORE T/O,OR YOU END UP SPINNING THE COPTER IN THE AIR AND CRASHING
There were two reasons I never came out with another jump-takeoff gyro after this one. 1. The people that paid me to develop it made me sign an agreement not to use the technology for 10 years. 2. After flying the prototype, I realized there would be a lot of people crashing it, so I would have needed to first design one that was a two-place for instruction, and at that time there were no engines suitable to design around. I ended up selling the company and got into designing helicopters, so I never went back to the jump-take-off gyro again...... YET! ;-)
Fred, I’m going to go out on a limb here and make a guess that you are a Democrat. Why would I say that? Because like a democrat, you throw out unfounded and untrue accusations with absolutely no substance to back up what you are saying. The fact is that when I owned Air Command and built the Commanders, there had never been a crash or death caused by the failure of a component, nor someone who received proper training and flew the aircraft within its envelope of performance. That’s a very good record for any aircraft to boast. Sure, some people had killed themselves in a Commander, but each and every one of them was attempting self-training, ignoring our warnings not to do so, or through pilot error and flew the aircraft into obstacles. So, your insults are meaningless without offering receipts for your unfounded statement.
The brave die but one death, the fearful die a thousand deaths. It's not verbatim, that would hurt the feelings of those who live in fear, there's a difference between recklessness and skill.
Hello, and thanks for viewing. In fact I did something like that. Mine only needed collective, so that made it easier. I didn't need to articulate the device, so in a since it is half a helicopter swash plate!
Because with my later venture into the designing and manufacturing helicopters, I learned a great deal about the efficient transmission of power. Hydraulics in this case is a very inefficient way to do the job. Look at the heat it produces in just one minute. Heat is loss of power. Now I could build a simple mechanical device that would transmit even more power, and do so without overheating. It would be smaller and lighter, less expensive to build, with less maintenance and easier to operate.
Hello Bob, Flex cables are an easy way to transfer power, but not very efficient compared to a mechanical gear drive, like in helicopters. If I did do it again, then I would use a real transmission. I learned a lot over my helicopter designing days.
ooh.Ididnt think about extra hp for jumps.Thanks, this is very useful info.Ihope we see more jump takeoff equipped gyros in the future.
The prerotator also weights about 25 pounds. So we had around a 50 pound system. But, that gyro in this film was not a 254 pound gyro, it was much heavier. It had a more powerful Rotax 532, not the little Rotax 447 that made the gyro only 253 pounds. You need the extra horsepower to do jump takeoffs. Even then, I would not do it again with hydraulics.
I had an idea for a helicopter which is fitted with 2 short blades perpendicular to the long blades, this might improve the overall efficiency of the disc because airspeed is faster toward the outer rim. What are your thoughts on this? If rocket drives where fitted to the tips of the short rotors they would only need to travel half the distance per revolution than if they where fitted on the long blades, possibly improving fuel economy, like driving in a higher gear.
If I remember, the jump systen was about 25 pounds more then the normal prerotator.
I think it was some military procurement company, I guess needing the technology for something they were already working on. It wouldn't have been Robinson, I know old Frank, and he certainly can engineer his own stuff, he don't need me! He is on the list of the top-five people I respect most in the world.
Thank for watching.
Why not do it again with Hydraulics? It sounded like a decent method to jump the gyro. Looks like the closest thing we have for a jump gyro now is the MLS by Larry Neal, and the Carter Copter demonstrator. Looks like it will be s few years yet until a reliable modular jump system can be incorporated into gyroplanes.
great video
Do you know how much extra weight this jump takeoff feature added to the craft?
thats a great idea. so you are not allowd to change it a little better and sell a newer version.
It was a very old idea I built in the late 1980's. Since then I know better ways to accomplish it, but since I no longer wish to do business with the public, I had no need to develop it further.
thanks!so what did the prerotator weigh?Im thinking if a gyro without all this weighs 254 pounds or so,how much extra is the whole jump takeoff add to a barebones gyro.thanks.
How much would a Gryro cost?
Why not use a swash plate an collective like a helicopter?
YES QUITE TRUE ,BUT IF YOU MISSED UP YOUR STEPS YOU WILL END UP CRASHING,YOU NEED TO PRACTICE THIS A LOT ON THE GROUND ,BEFORE T/O,OR YOU END UP SPINNING THE COPTER IN THE AIR AND CRASHING
There were two reasons I never came out with another jump-takeoff gyro after this one. 1. The people that paid me to develop it made me sign an agreement not to use the technology for 10 years. 2. After flying the prototype, I realized there would be a lot of people crashing it, so I would have needed to first design one that was a two-place for instruction, and at that time there were no engines suitable to design around. I ended up selling the company and got into designing helicopters, so I never went back to the jump-take-off gyro again...... YET! ;-)
OK GREAT THANK YOU FOR THE ANSWER,I AGREE
"Death trap"
Fred, I’m going to go out on a limb here and make a guess that you are a Democrat. Why would I say that? Because like a democrat, you throw out unfounded and untrue accusations with absolutely no substance to back up what you are saying. The fact is that when I owned Air Command and built the Commanders, there had never been a crash or death caused by the failure of a component, nor someone who received proper training and flew the aircraft within its envelope of performance. That’s a very good record for any aircraft to boast. Sure, some people had killed themselves in a Commander, but each and every one of them was attempting self-training, ignoring our warnings not to do so, or through pilot error and flew the aircraft into obstacles. So, your insults are meaningless without offering receipts for your unfounded statement.
@@fettersbuiltco Come on man look at the thing😂 ..Only a Progressive harris supporter would get in that thing and strap on a helmet🤣
@@fredliperson9171 THEN YOU ARE IN LUCK. I'll DONATE ONE FOR YOU HERE TO TRY OUT!! Auh, go ahead. I'm sure you will be the exception to self-training!
The brave die but one death, the fearful die a thousand deaths. It's not verbatim, that would hurt the feelings of those who live in fear, there's a difference between recklessness and skill.