To all, We are currently running our program C-56 XERUS tip-jet helicopter, modern version of the Djinn here shown that I own. Follow us on www.celiergroup.com where you can see the new design. On the actual video it was tested with the old engine, not enough power due to out of TBO engine. We have replaced it with a brand new one latest edition. We have now the full power and a little more. Extremely easy to fly as torque less helicopter. No "deadman" zone, no tail rotor, no transmission that can break. But as originally built in 1960 it is noisy and fuel greedy. This is all about to change with the C-56 XERUS. It will be fully EASA certified as 4 seats (on our website at this point is presented the UL version, thus for the EASA version the MTO is 830 kg) , modern turbine engine, modern blades, Carbon Fiber fuselage, long range and higher performances. We are currently proceeding to all CFD simulations. The EASA version shall be priced around 700 K. EUR. More news to come. Stay tuned.
Very interesting project. Exciting ! But very high price. I wish it could rival the Charlie Kompress kind of which is not cheap either :-( but less than a quarter of yours. Customers will have to be extremely technology enthusiasts, and rich. Helicopter tragedy...
Very nice efficient design. Turbine produces high pressure air for rotor tip jets, very popular during WW2. Research "Airjeep" no transmission, no tail rotor 1/10th the moving parts. Cheap to operate 15gph fuel burn.
@@beeqool No, not 3 times the fuel burn, only about double, but being an experimental, you're not bound to Jet-A which is basically glorified diesel. You can run turbines on kerosene, diesel, even cooking oil, which is what we use in our Allouette turbine, cleaned and filtered used cooking oil from restaurants. In emergency cases you can even run auto fuel for a short amount of time to get out of an area and back to a diesel pump. Furthermore, the absence of the main rotor transmission and clutch assembly as well as the tail rotor gearbox and drive assembly cuts the maintenance costs Incredibly lower than a fully geared helo. More comparable to a gyrocopter in maintenance. The cost of operating any equipment, being a truck, tractor, airplane or helo, is calculated per hour with fuel burn and timed components and wear components and pre scheduled inspections. When that calculation is used, this little helo is Much more efficient and less costly to operate and maintain than a standard configuration helo, provided you can accomplish your task with what this unit can deliver.
Bonjour...moi j'était mécano dessus pendant plusieurs années...ça me rappel des supers souvenirs...ça me manque beaucoup...j'y pense très souvent...et ça fait du bien d'en revoir un... Merci pour ces belles images...
@@celierraphael471 Je veux bien mais de quelle façon...ça devrait être en privé...parce qu'il y aura beaucoup de détails concernant mon expérience pour des personnes de grande valeur...etc...
@R A Tip jet helicopters are wctually very tolerant of this... A conventional helicopter doesn't have nearly thr amount of torque these tip jet rotors can produce... I don't know about all of them but the Fairey Ultralight had a governor because overspending was an issue with small throttle application. They all suffered from noise and heavy fuel consumption (driving a gearbox is more efficient than a compressor) though I would think it could be reevaluate now... would think modern tech could bring costs down considerably
Same as a NOTAR MD500, NO TAil Rotor, but I didn't notice that on this one. ... Oh, exhaust shooting at the rudder??? Oh, I see now, It's a Tip-Jet system. No need for tail rotor. czcams.com/video/VCZ2jhE0Azk/video.html
what are you trying to do here in this video? ive read about these tip jet helicopters, from what i understand theyre better than regular ones in all ways except about twice the fuel consumption right? can you compare what their overall costs are compared to the same size conventionl helicopter?
@Joseph Smith yes me too. they appear mysterious to me. theres not much info about them. i know many companies have tried to develop them but for some reason they all failed.
I'm a fixed wing pilot . I love the Simplicity of this aircraft. If engine failure occurs how is air pressure maintained for directional control during Auto rotation?
How much cost a modern turbine able to replace the original one ? Would there be a lot of work to adapt a different one ? Was the original computed for the Djinn specificity ?
First flight of the Djinn occurred on 2 January 1953; first flight of the Ultralight occurred on 14 August 1955. The Djinn rotor was driven by cold pressure jets (unburnt air); the Ultralight rotor was driven by weak mixture hot pressure jets (burnt air). Theodore Laufer, who designed the Djinn rotor drive, and Freidrich von Doblhoff, who designed the Ultralight rotor drive, worked together on early tip jet driven rotors at Wiener Neustädter Flugzeugwerke (Vienna Aircraft Factory) during WW2, after which the team was split up between Britain, France, and USA.
This is not a gyrocopter or an autogyro. It is a tip jet driven helicopter. Driving the rotor by means of tip jets means that that there is no need for a tail rotor, as there is no drive shaft producing torque reaction on the fuselage. The rudder provides directional control, even at low speed, as the engine exhaust is passing over it. This design uses compressed air without any fuel combustion to drive the rotor. A similar British design the Fairey Ultralight used tip jet drive but also burned fuel in the tips for extra thrust.
There is no anti torque required. Because the rotor is driven by the tip jets, there is no conventional rotor drive shaft so there is no torque reaction on the fuselage. This is the whole idea of tip jet drive. The rudder is there purely for directional control. At zero or low sped the exhaust gases from the engine pass over the rudder surface providing flow for the rudder to generate side force when deflected from the neutral position, and as airspeed increases the ruder becomes more effective.
The bar below the rotor is a stabilising device. The centrifugal forces on the tip weights tend to keep the stabiliser bar perpendicular to the axis of the rotor. It is mechanically connected between the pilots flight controls and the inputs to the pitch change arms on the rotor blades. If the rotor is deflected by wind gusts, the effect of the stabiliser bar is to make automatic correction to the rotor to compensate. This system was perfected by Bell on the Bell 47. It was designed by Arthur Middleton Young using self built models.
@@alanwhitfield1907 thank you for the information. The last time I heard 'tip jet' is during my traning as and aircraft technician 1986. Forgot all about it. Your explanation bring back memories. 👍🇧🇳
Oui, la turbine est totalement usée, elle a été remplacée peu après et tout fonctionnait parfaitement avec le nouvelle turbine, dommage qu'il n'y a pas eu de vidéo pour l'illustrer
Haven't heard anything yet. Ready to go when they reply. We'll definitely do a few videos, and the mods we have prepared for the pressure system, which will allow sustained hover, and quieter operation
Se splendide SO-1221 Djinn en état de vol sont rare de nos jour! Merci pour le partage.
To all,
We are currently running our program C-56 XERUS tip-jet helicopter, modern version of the Djinn here shown that I own. Follow us on www.celiergroup.com where you can see the new design.
On the actual video it was tested with the old engine, not enough power due to out of TBO engine. We have replaced it with a brand new one latest edition.
We have now the full power and a little more. Extremely easy to fly as torque less helicopter. No "deadman" zone, no tail rotor, no transmission that can break.
But as originally built in 1960 it is noisy and fuel greedy. This is all about to change with the C-56 XERUS.
It will be fully EASA certified as 4 seats (on our website at this point is presented the UL version, thus for the EASA version the MTO is 830 kg) , modern turbine engine, modern blades, Carbon Fiber fuselage, long range and higher performances. We are currently proceeding to all CFD simulations.
The EASA version shall be priced around 700 K. EUR.
More news to come. Stay tuned.
Very interesting project. Exciting !
But very high price. I wish it could rival the Charlie Kompress kind of which is not cheap either :-( but less than a quarter of yours. Customers will have to be extremely technology enthusiasts, and rich.
Helicopter tragedy...
@@soliv27 just go find an old army "airjeep", tipjet single or dual seat, very popular back then. Should be some available.
Very nice efficient design. Turbine produces high pressure air for rotor tip jets, very popular during WW2. Research "Airjeep" no transmission, no tail rotor 1/10th the moving parts. Cheap to operate 15gph fuel burn.
Correct.
so about 3 times the fuel regular helis use. do you know how its overall cost compares to regular helis?
@@beeqool No, not 3 times the fuel burn, only about double, but being an experimental, you're not bound to Jet-A which is basically glorified diesel. You can run turbines on kerosene, diesel, even cooking oil, which is what we use in our Allouette turbine, cleaned and filtered used cooking oil from restaurants. In emergency cases you can even run auto fuel for a short amount of time to get out of an area and back to a diesel pump.
Furthermore, the absence of the main rotor transmission and clutch assembly as well as the tail rotor gearbox and drive assembly cuts the maintenance costs Incredibly lower than a fully geared helo. More comparable to a gyrocopter in maintenance.
The cost of operating any equipment, being a truck, tractor, airplane or helo, is calculated per hour with fuel burn and timed components and wear components and pre scheduled inspections. When that calculation is used, this little helo is Much more efficient and less costly to operate and maintain than a standard configuration helo, provided you can accomplish your task with what this unit can deliver.
@@timmorris3056 thanks for first hand info. do you know why nobody makes these? could these be made with ice engine to make it even cheaper?
@@beeqool Watch "One Man Helicopter Jet Jeep Invention Newsreel PublicDomainFootage.com" on CZcams
czcams.com/video/MSDZ2x1LgMc/video.html
Bonjour...moi j'était mécano dessus pendant plusieurs années...ça me rappel des supers souvenirs...ça me manque beaucoup...j'y pense très souvent...et ça fait du bien d'en revoir un...
Merci pour ces belles images...
xavier-marc benoit
Au plaisir de se parler en direct.
@@celierraphael471 Je veux bien mais de quelle façon...ça devrait être en privé...parce qu'il y aura beaucoup de détails concernant mon expérience pour des personnes de grande valeur...etc...
xavier-marc benoit raphael.celier@celiergroup.com
There might be an electrochemical fuel/engine option that would make the jet moot.
The most conceptually elegant helicopter: the transmission is just ducting. A shame it never caught on.
I suspect the "majors" of the day didn't need any foreign innovative competitor to breach into the business. The US Army tested it I think .
Lookup Airjeep, US military
@ryan allemand fly it just like a gyrocopter and you're fine, don't try hovering more than enough to land.
I thing it's that the fuel consumption is just to great . czcams.com/video/lDOuoG6ljZA/video.html and maybe this You Tube post is just to grainy.
@R A Tip jet helicopters are wctually very tolerant of this... A conventional helicopter doesn't have nearly thr amount of torque these tip jet rotors can produce... I don't know about all of them but the Fairey Ultralight had a governor because overspending was an issue with small throttle application.
They all suffered from noise and heavy fuel consumption (driving a gearbox is more efficient than a compressor) though I would think it could be reevaluate now... would think modern tech could bring costs down considerably
Have never seen this type of helicobacter it's using a jet blow to councel torque, it's amazing
Same as a NOTAR MD500, NO TAil Rotor, but I didn't notice that on this one. ... Oh, exhaust shooting at the rudder??? Oh, I see now, It's a Tip-Jet system. No need for tail rotor. czcams.com/video/VCZ2jhE0Azk/video.html
Almost there!!! Need a little more bleed-air. Try the next engine size up. That should do it. Nice job!!!
Also needs a tail rotor to prevent the spin!
@@GaryNumeroUno No spin on the Djinn. This is a tip-jet rotor system.
Super ! Le Djinn est l'ancêtre des Alouette...
what are you trying to do here in this video?
ive read about these tip jet helicopters, from what i understand theyre better than regular ones in all ways except about twice the fuel consumption right?
can you compare what their overall costs are compared to the same size conventionl helicopter?
@Joseph Smith yes me too. they appear mysterious to me. theres not much info about them. i know many companies have tried to develop them but for some reason they all failed.
Perfect machine except that droop! No vibe , big strong rotors ! Who is the Broker?✨👍🏻
Il n'y a pas d'anti couple pour corriger le lacet ??
Significant rotor rpm droop.
I'm a fixed wing pilot . I love the Simplicity of this aircraft. If engine failure occurs how is air pressure maintained for directional control during Auto rotation?
The rudder would work as long as the helicopter is moving forward but the rudder would become less effective as airspeed/air flow reduces.
Great for hover autos
COOL!
Finally, a revival of a dropped technology? I don't have a clue about airworthy survivors.
Yes it is. Besides about only 5 remaining in flight condition.
@@celierraphael471 How does it fly with only one main rotor and no tail rotor?
@@Justwantahover jet tips
How much cost a modern turbine able to replace the original one ?
Would there be a lot of work to adapt a different one ? Was the original computed for the Djinn specificity ?
The cost from a turbine is gigantic, and why replace to original turbine? It's a Turbomeca turbine, world best brand for helicopter turbines...
No tail rotor??
Not necessary ! Because air jet from the blades cancels tail rotor complexity French helicopter to pilot
Really struggles with maintaining rotor head speed.....no mechanical connection I'm guessing might be the reason.
no, the turbine is out of TBO, was replaced after this flying test
It looks like a Fairey Ultralight knock off
First flight of the Djinn occurred on 2 January 1953; first flight of the Ultralight occurred on 14 August 1955. The Djinn rotor was driven by cold pressure jets (unburnt air); the Ultralight rotor was driven by weak mixture hot pressure jets (burnt air). Theodore Laufer, who designed the Djinn rotor drive, and Freidrich von Doblhoff, who designed the Ultralight rotor drive, worked together on early tip jet driven rotors at Wiener Neustädter Flugzeugwerke (Vienna Aircraft Factory) during WW2, after which the team was split up between Britain, France, and USA.
Bleed air is not enough power, in my opinion or get bigger engine
not a bad gyrocopter
This is not a gyrocopter or an autogyro. It is a tip jet driven helicopter. Driving the rotor by means of tip jets means that that there is no need for a tail rotor, as there is no drive shaft producing torque reaction on the fuselage. The rudder provides directional control, even at low speed, as the engine exhaust is passing over it. This design uses compressed air without any fuel combustion to drive the rotor.
A similar British design the Fairey Ultralight used tip jet drive but also burned fuel in the tips for extra thrust.
Why is it losing rotor rpm when taking off
turbine is out of TBO, will be replaced after this test
🤔 How does it compensate anti torque. Is it with the bar just beneath the main rotor?
I'd say the rudder, from a big blower blowing on it. and no mr transmission only mr tip jets.
@@sparkyr22 thanks for the info, first I thought was kind of co-axil.
There is no anti torque required. Because the rotor is driven by the tip jets, there is no conventional rotor drive shaft so there is no torque reaction on the fuselage. This is the whole idea of tip jet drive. The rudder is there purely for directional control. At zero or low sped the exhaust gases from the engine pass over the rudder surface providing flow for the rudder to generate side force when deflected from the neutral position, and as airspeed increases the ruder becomes more effective.
The bar below the rotor is a stabilising device. The centrifugal forces on the tip weights tend to keep the stabiliser bar perpendicular to the axis of the rotor. It is mechanically connected between the pilots flight controls and the inputs to the pitch change arms on the rotor blades. If the rotor is deflected by wind gusts, the effect of the stabiliser bar is to make automatic correction to the rotor to compensate. This system was perfected by Bell on the Bell 47. It was designed by Arthur Middleton Young using self built models.
@@alanwhitfield1907 thank you for the information. The last time I heard 'tip jet' is during my traning as and aircraft technician 1986. Forgot all about it. Your explanation bring back memories. 👍🇧🇳
it look like the rpm is down
ฉันอยากจะถามวิศวกรการบินการเอาเครื่องยนต์วางแนวตั้งเครื่องยนต์กับใบพัดหมุนสลับทิศทางกันมันจะแก้อาการเอียงได้ไหมหมายถึงอาการหมุนรอบตัวเอง
il perd pas mal de tours en vol, non?
Oui, la turbine est totalement usée, elle a été remplacée peu après et tout fonctionnait parfaitement avec le nouvelle turbine, dommage qu'il n'y a pas eu de vidéo pour l'illustrer
We are selling my father's Djinn. with two spare engine. Any one interested in Malta?
Please call 208-886-0301 in the states thank you Ed
Ok, trashman269@gmail.com
@@landtrust7341 did you get it yet?
Haven't heard anything yet. Ready to go when they reply. We'll definitely do a few videos, and the mods we have prepared for the pressure system, which will allow sustained hover, and quieter operation