@m1217k I mounted the blades Thursday to do a static balance and lead lag. I got the positive and negative pitch set. I changed the coolant sender and put in an oxygen sensor today. I plan to pull it out of the garage and run it tomorrow (Sunday) without the blades and if everything is running good and the rain holds off then I will mount the blades and run everything Monday during tethered testing. Then after 5 hours of tethered operation i will start hover testing.
@donold009 The blades that I have were made for my helicopter by Precision rotors. The root end is 2.8" thick for my larger rotor hub, the blades are 12' 1'" long for a diameter of 25' 10" , 8" chord, 1.1 inch thick. I ran it today at 510 rpm after geting the lead/lag close to where it needs to be. The Subaru engine runs great now that I have all the wiring sorted out.
@@jonb9428 you've inspired me to get another RW. I have a subaru to rebuild out of a outback I own. I'd be willing to pay you for how you did all this. Your dash looks great too. I plan to throw out the old dash and built a standard T console. I had to sell my first one during a divorce. I lost the house but won the dog so I won that little spat. Anyway, I'm an old army pilot that's just crazy enough to do something like this so I could use some help.
Miclair Miclair The gear reduction needs to be suited to your machine. Too small and it won’t be able to handle the torque, too big and it will be too heavy.
Wow, that's a old heli.... I remember back in the late '70's one of these came through Starkville, MS airport on a trailer for sale $700 - $800....... I sure wish I would have bought that thing.......
It looks old but the only things original on my helicopter are the cabin, seats and parts of the frame. Everything else I came up with on my own. I see original scorpions for sale occasionally.
@truthadvance I finished all the minor things today finally. I will be drilling the blades and mounting the blade straps tomorrow. I hope to have a video with the main rotors turning by the end of this week if everything goes well.
Hi, great job. What is the total weight of the helicopter and how much do you think it will be able to carry more cargo? I ask because I'm starting to build a coaxial helicopter, I'm thinking of using an EJ 25 engine, so I'm interested in some winning characteristics? For me, only the main shaft with gears will weigh close to 100 kg. :( Thank you very much...
Hi, Empty weight is 1460 pounds. I can fly with me (200pounds) and passenger (200pounds) plus 15 gallons of gas if the outside temperature is less than 70 degrees F. At 100 degrees F outside temperature it will barely lift me. My transmission and rotor system without blades weighs 180 pounds. Feel free to email me at jonb9428@msn.com
@JTGolden250 It is a series 100 from superior gearbox with 1:1.4 ratio speed increaser. There are several different versions to choose from just find the one that suits your needs. My gearbox temp has never gone above 160*. What are you working on?
So cool... There's one of these for sale in my town it's in peices it needs full restoration I was thinking about buying it but i didn't see the swash plate set up in the pics. Static balance and lead lag sounds like theres quite a bit to know to put one of these together. How long did it take you to put this together? how much do you have invested?
What is the diameter of your main shaft? In my case, the diameter is 35 mm (round bar, material 4140) for the central one, because it is coaxial. I hope it will be enough because the mlment is divided into two shafts??? Thanks
@@jonb9428 your main rotor system swash plate rotor head main rotor shaft is that stock road away if not where can I go to purchase these items also the intermediate gearbox for the tail rotor I believe it's like a 30 or 35 degree angle what kind of modifications were done to the Chevrolet differential where can I go to get this information to build this
@@markoneal1764 I machined the rotor system myself, using 7075 t6 aluminum and 4130 steel. I made the ring gear spool for the gearbox too, there is not one commercially available that I know of. I used two universal joints for the 25 degree upward angle on the tailboom. My email address is jonb9428@msn.com
@jonb9428 Thats Great J.. Any more video to share of it? What did you come up with empty weight on it? Did the subaru engine wheigh more or less than the rotorway 152? I believe the 152 is listed in my manual at 175 pounds? Might have to double check that.... Look forward to seeing more..... Mike
What blades are you using? Rotorway blades rotate clockwise and your system turns counterclockwise. That is the problem I ran into, it would be nice to see someone get a Subaru engine to work.
The engine is a Subaru EJ257 with modified SOHC heads and intake. The main gearbox is a front differential from a 97 Chevrolet 4x4, modified internally to run at 90 degrees offset.
10 років тому+1
Hello sir Jonb 9428.'m in Brazil, I have a dream of building an experimental helicopter, however I intend to use a VW 2.0 liter carbureted, I wonder what kind of transmission was used in their helicopter, to connect the engine to the main rotor and syrup. would be a replacement or a differential pick-up. take my doubt. I await your return. have a nice day grateful .Jair
Nice copter! Did you converted this subaru engine to aero engine? May be the cooling system? In my mind a motor engine can not run as high RPM for long times, just few minutes it will overheat. Did it really happened?
Wow. That sound really messed with my head... i.e. That was the best sounding helo I've heard to date :) Not to mention you have a bench-grinder mounted to the front, wink! Thanks for sharing.
O companheiro do vídeo, por favor, nós próximos aproxime mais das peças pra se ver os detalhes construtivos. Pra quem tem "sinho" de construir um, é importante a visualização das peças principalmente o "swashplate" e as pás do rotor, assim como os material de que são feitas e como são feitas, do contrário não ajuda os iniciantes. Ok?
watching this gave me goose bumps
@m1217k I mounted the blades Thursday to do a static balance and lead lag. I got the positive and negative pitch set. I changed the coolant sender and put in an oxygen sensor today. I plan to pull it out of the garage and run it tomorrow (Sunday) without the blades and if everything is running good and the rain holds off then I will mount the blades and run everything Monday during tethered testing. Then after 5 hours of tethered operation i will start hover testing.
@donold009 The blades that I have were made for my helicopter by Precision rotors. The root end is 2.8" thick for my larger rotor hub, the blades are 12' 1'" long for a diameter of 25' 10" , 8" chord, 1.1 inch thick. I ran it today at 510 rpm after geting the lead/lag close to where it needs to be. The Subaru engine runs great now that I have all the wiring sorted out.
Had a Scorpion in 2004 but it never sounded like that! That's amazing!!!
This one is quite a bit different from the original scorpion.
@@jonb9428 you've inspired me to get another RW. I have a subaru to rebuild out of a outback I own. I'd be willing to pay you for how you did all this. Your dash looks great too. I plan to throw out the old dash and built a standard T console. I had to sell my first one during a divorce. I lost the house but won the dog so I won that little spat. Anyway, I'm an old army pilot that's just crazy enough to do something like this so I could use some help.
Tiger 181 My email is jonb9428@msn.com , send me your phone number and I will give you a call. I would be happy to help if I can.
@@jonb9428 hi man, can a any gear reduction transmission be used?.
Miclair Miclair The gear reduction needs to be suited to your machine. Too small and it won’t be able to handle the torque, too big and it will be too heavy.
Awesome job! amazing
Wow, that's a old heli.... I remember back in the late '70's one of these came through Starkville, MS airport on a trailer for sale $700 - $800....... I sure wish I would have bought that thing.......
It looks old but the only things original on my helicopter are the cabin, seats and parts of the frame. Everything else I came up with on my own. I see original scorpions for sale occasionally.
@truthadvance I finished all the minor things today finally. I will be drilling the blades and mounting the blade straps tomorrow. I hope to have a video with the main rotors turning by the end of this week if everything goes well.
Congratulation SR this is awesome,please post more videos
Hi,
great job.
What is the total weight of the helicopter and how much do you think it will be able to carry more cargo?
I ask because I'm starting to build a coaxial helicopter, I'm thinking of using an EJ 25 engine, so I'm interested in some winning characteristics?
For me, only the main shaft with gears will weigh close to 100 kg. :(
Thank you very much...
Hi, Empty weight is 1460 pounds. I can fly with me (200pounds) and passenger (200pounds) plus 15 gallons of gas if the outside temperature is less than 70 degrees F. At 100 degrees F outside temperature it will barely lift me. My transmission and rotor system without blades weighs 180 pounds. Feel free to email me at jonb9428@msn.com
Thanks...
i would love to make a helicopter but i dont know how to make a swashplate
@JTGolden250 It is a series 100 from superior gearbox with 1:1.4 ratio speed increaser. There are several different versions to choose from just find the one that suits your needs. My gearbox temp has never gone above 160*. What are you working on?
So cool... There's one of these for sale in my town it's in peices it needs full restoration I was thinking about buying it but i didn't see the swash plate set up in the pics. Static balance and lead lag sounds like theres quite a bit to know to put one of these together. How long did it take you to put this together? how much do you have invested?
What is the diameter of your main shaft? In my case, the diameter is 35 mm (round bar, material 4140) for the central one, because it is coaxial. I hope it will be enough because the mlment is divided into two shafts??? Thanks
@@aleksandarbrankovic3482 It depends on what the total weight is, but 35mm should be good . The diameter of mine is 1.5” or 38.1mm
@jonb9428
Thanks.. :)
looking Great! Any more videos? :)
Hey J..
Hows the progress coming.... Have you done a empty weight of helicopter in completion form? More videos? Mike
@jonb9428 Hows the heli coming? Blades mounted yet? Look forward to flight video's..:)
M
Could you give me some information as to where you got your gearboxes and tail rotor gearboxes
Sure, the main transmission is a modified front differential from a GM 1500 4x4. The tail gearbox is a Superior series 100 1:1.4 speed increaser.
@@jonb9428 your main rotor system swash plate rotor head main rotor shaft is that stock road away if not where can I go to purchase these items also the intermediate gearbox for the tail rotor I believe it's like a 30 or 35 degree angle what kind of modifications were done to the Chevrolet differential where can I go to get this information to build this
@@markoneal1764 I machined the rotor system myself, using 7075 t6 aluminum and 4130 steel. I made the ring gear spool for the gearbox too, there is not one commercially available that I know of. I used two universal joints for the 25 degree upward angle on the tailboom. My email address is jonb9428@msn.com
@jonb9428 Thats Great J.. Any more video to share of it? What did you come up with empty weight on it? Did the subaru engine wheigh more or less than the rotorway 152? I believe the 152 is listed in my manual at 175 pounds? Might have to double check that.... Look forward to seeing more.....
Mike
Nice job! How far have you got with that bird? Got it in the air yet?
do you have any videos of the build?? if so can u up load them?
What blades are you using? Rotorway blades rotate clockwise and your system turns counterclockwise. That is the problem I ran into, it would be nice to see someone get a Subaru engine to work.
I want to know the tansmission you use thank you
Which Subaru engine are you using? What is the rotor gearbox out of?
The engine is a Subaru EJ257 with modified SOHC heads and intake. The main gearbox is a front differential from a 97 Chevrolet 4x4, modified internally to run at 90 degrees offset.
Hello sir Jonb 9428.'m in Brazil, I have a dream of building an experimental helicopter, however I intend to use a VW 2.0 liter carbureted, I wonder what kind of transmission was used in their helicopter, to connect the engine to the main rotor and syrup. would be a replacement or a differential pick-up. take my doubt.
I await your return. have a nice day
grateful .Jair
Hi how i can have the plan please
Nice copter! Did you converted this subaru engine to aero engine? May be the cooling system? In my mind a motor engine can not run as high RPM for long times, just few minutes it will overheat. Did it really happened?
I modified a Subaru EJ257 engine for helicopter use. The engine does not overheat.
Could you provide more details?
Hi Mike, what details would you like to know? Lots of details here: www.rotaryforum.com/forum/showthread.php?t=27088
muy buenas noches me encantaria saber cuantos caballos tiene el motor
Wow. That sound really messed with my head... i.e. That was the best sounding helo I've heard to date :) Not to mention you have a bench-grinder mounted to the front, wink! Thanks for sharing.
i realize it is pretty off topic but does anyone know of a good place to watch new movies online?
@Jordan Keith flixportal :D
@Matias Edward thank you, I signed up and it seems like they got a lot of movies there :) I really appreciate it!
@Jordan Keith glad I could help xD
John do you work on other aircraft on the side ?
Isaiah Gove Sorry Isaih, I just saw your question. Yes I have worked on several experimental and certified helicopters.
O companheiro do vídeo, por favor, nós próximos aproxime mais das peças pra se ver os detalhes construtivos. Pra quem tem "sinho" de construir um, é importante a visualização das peças principalmente o "swashplate" e as pás do rotor, assim como os material de que são feitas e como são feitas, do contrário não ajuda os iniciantes. Ok?
❤️❤️❤️❤️❤️❤️❤️❤️
Tolong liatin fungsi baling2nya
oh matche power your engine
160 hp