Bell XV-3 - Grandfather of the Osprey and Valor
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- Опубликовано: 9 июн 2024
- The Bell XV-3 is an experimental tiltrotor aircraft developed by Bell in the mid-1950s.
The XV-3 is a flying laboratory, whose task was to study the possibilities of flying in airplane and helicopter modes with the transition from one to the other by turning the rotors. The XV-3 was the first aircraft to successfully complete this transition and continue stable flights in both modes. This makes it the world's first full-fledged tiltrotor.
However, the research program and a series of flight tests both proved the promise of the tiltrotor concept, but also showed that the aviation technologies of that time were still insufficiently developed to bring convertiplanes to actual operation. Bell did a great job with the XV-3, but after getting the available amount of data, they canceled the work.
The Bell XV-3 was a milestone, and became the first step on the path, that led to the creation of such advanced machines as the V-22 Osprey and the V-208 Valor. Of the two XV-3 prototypes, one survived - it was preserved and is kept in the museum.
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00:00 - The old idea
00:52 - Slow helicopters
02:07 - The Bell concept
04:04 - The XV-3 project
05:05 - The aircraft description
07:47 - The first prototype tests
08:47 - The second prototype
10:12 - Success
12:17 - The XV-3 program completion 
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I worked on the Osprey when I graduated from Engineering school, so it is soooo cool to see the progenitor of the line! No, I didn't do anything too exciting on it. I was an avionics software test engineer, but I still consider it "My Bird", and happy to see it out there making a name for itself.
Oh, this marathon will be interesting) Let's start it!
Thank you for the new story!
We’re waiting for the V-22 Osprey now
When I was really little (1965), my Dad worked at the 'Boeing-Vertol' plant, up in Philadelphia. He was a cowling, fiberglass specialist, working on the CH-47, Chinook. I remember having two, 'Boeing-Vertol', veterans style hats (made of felt), with 2 propellers on it, one at each end.
This is a great book about the Osprey: The Dream Machine, by Whittle. Also don't forget the other reason that helicopters are slow - as the rotors go faster (and the helicopter), the tips of the rotors can reach transsonic speeds, which is a big limiter.
Thanks for that recommendation! I already ordered a copy of it. I'm an aeronautical engineer involved in development and certification of ultralight helicopters, being my best achievement, to have worked in the Cicaré 8 project and having managed the whole certification process from the beginning till the end, ending with the type certification in Germany obtained last year.
Tilt rotors are cool.
Teaching is the most Nobel profession.
This was definitely the best documentary video I have seen on VTOL technology. I watched a few Hawker-Sidley films and listened to many debates in the '80's about funding Bell's pursuit of VTOL. It dismayed me to hear congress and the Defense Department disagree over permitting the US Army to buy the V-22 Osprey. There is definitely a future in VTOL with graphene and carbon-fiber airframe construction. The fact that toy drones can be bought today for $20 is proof that VTOL has a future in any place that runways aren't present.
Very informative content..Love from Mangalore, India🇮🇳
Finally, one day I will see the V-22 Osprey
Good stuff!! Thanks Sky!
In the 1980s I lived close to the (now defunct) Dallas Naval Air Station. As you might imagine, a Naval Air Station in north-ish Texas wasn't usually a hotbed of activity. However, one day I was driving by the NAS rubbernecking in case there were any planes taking off or landing. In the distance, I saw some version of what would become the Osprey coming in to land. I pulled over and got out of my car to watch the thing land. I was flabbergasted. I totally understood the intention of the design but seeing the actual contraption was quite memorable!
Another great vid.Thanks Sky!
Looking much cooler than the Osprey.
Just wanted to say that I love your videos!
And the main issue with helicopters is that with the rotor speed, the advancing rotor is nearing supersonic speed when added to rhe forward speed of the aircraft. That has all kinds of problems. Not so much loss of lift, blades are designed to adjust for that already.
Very good video, thank you.
Another well done video. Good work. Thank you
My backyard is the testing ground for Leonardo... I see these everyday
It's interesting to see how they've tryed to create the tiltrotor before the Osprey
The DC super Hero Plastic Man used to have a convertaplane on his old cartoon.
Комментарий в поддержку канала, скай делает отличный контент!
With the "hybrid" design being all the rage in the automotive industry, I would like to propose the idea of a hybrid tilt rotor. A machine similar in design to the V-22, but the rotors limited to a 45° rotation. This would work only in a short take off and landing configuration but would improve weight carrying capability over a helicopter, but reduce the take off run over a modern fixed wing aircraft. I could see this design supplementing and perhaps replacing the A-10. I call the design the "A-24 Peccary".
Great video and info. As usual......
The main rotor does not form a flat disc. It looks more like a V due to the advancing blade "flaps" to even out lift in forward flight. This flapping caused the advancing blade to travel a longer distance than the retreating blade which balanced the lift in forward flight.
I was in a helo squadron in the Navy. I had to know how the flight system worked to repair gripes.
I remember there is another similar aircraft called XC-142, can you make a video about that?
The XC-142 was a beast compared to the XV-3!
Ever since I’ve seen osprey, I’ve always imagined a laat gunship from Star Wars
Hello Sky. I do not know what test pilots get paid nor what their life insurance policies are but i do know it's not enough. Best regards to you Sky.
I remember reading about a German design similar to this aircraft, except the rotors tilted UP from a horizontal plane under the wings, (for vertical lift), and then rotated forward for horizontal flight. I saw images, but don't know if it was ever developed
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The V in XV-3 like the V in MV-22 and in AV-8B stands for variable not vertical because they all perform the same task by varying their thrust vectors.
Incorrect, let's check official documents:
DEPARTMENT AIR FORCE INSTRUCTION 16-401, ARMY REGULATION 70-50, NAVAIRINST 13100.16
Table A3.6. List of Aircraft Standard and Non-Standard Vehicle Type Symbol.
V (VTOL and STOL)-Aircraft designed to take off and land vertically or in a very short distance.
Would it be possible to have a pair of tilting jet turbine engines on an Osprey-like aircraft?
Yes but it doesn't make sense, tilt-rotors have their props on the edges of the wing because that's the only way to make space for them but with jet engines that's not the case so you might as well keep them near the fuselage. And that's why all jet VTOLSs have their engines in the center.
@@hedgehog3180 That makes sense, thank you.
A tilt-plane? Tilt-rotor?
the military asks for too much
Whoever thinks the tiltrotor is "latest idea" knows no history. That is only true insofar as modern tech was needed to make it work.
Опять на инглише вышло раньше...приоритеты.
На Бусти уже больше недели лежит.
Too bad you didn't bother to de-interlace the old interlaced video.
Fake info guys, the firs tilt rotor the grandfather of all designs was a german one. Weserflug P.1003
And it was never built