Archibald said:Since it is painted black, it should be called the Dark Valor (runs for cover)
AeroFranz said:I bet the transmission is blurred because other companies might have IP that this could be seen as infringing.
I can already see lawyers sharpening their knives...
AeroFranz said:I bet the transmission is blurred because other companies might have IP that this could be seen as infringing.
I can already see lawyers sharpening their knives...
VTOLicious said:AeroFranz said:I bet the transmission is blurred because other companies might have IP that this could be seen as infringing.
I can already see lawyers sharpening their knives...
Good point!
https://docs.google.com/viewer?url=patentimages.storage.googleapis.com/pdfs/US6276633.pdf
https://docs.google.com/viewer?url=patentimages.storage.googleapis.com/pdfs/US20150048213.pdf
flateric said:Can anyone explain me wtf is Rotor Turn Time (RTT)?
NASHVILLE, Tennessee—As the Bell V-280 Valor continues cruising through test cards in Amarillo, Texas, the company now expects to meet all the key performance parameters set by the U.S. Army under the Joint Multi-Role Technology Demonstrator (JMR-TD) initiative “by the end of summer.”
Jeffrey Schloesser, Bell’s executive vice president of strategic pursuits, tells Aerospace DAILY the next-generation tiltrotor prototype so far has achieved a speed of 140 kt. (half speed) with proprotors 60-deg. forward. Valor first flew on Dec. 18, 2017.
“We’re at the point now where we’re switching to an L-39 chase jet rather than a chase helicopter, because we’ll be going faster than helicopter speeds,” he says. “During the summer, we plan on reaching most of the required performance parameters that were part of the test program. One of those is cruise mode, also known as ‘airplane mode’ or ‘zero-degree pylon.’”
Once the company has met the Army’s requirements under JMR-TD, it will begin working through its own test objectives, including autonomous flight and potentially going above 300 kt. (the objective speed is 280 kt.). Bell will install a mission equipment package provided by key supplier Lockheed Martin, including a Pilot Distributed Aperture System. Just like the Lockheed Martin F-35 Lightning II’s AAQ-37 Electro-Optical Distributed Aperture System, Valor’s “PDAS” will provide V-280 operators with 360-deg. unobstructed visibility.
Bell won’t give an exact month for when it expects to hit cruise mode, nor will it confirm flying autonomously this year or next.
“We’re following our test cards, as you’d expect for an all-new, clean-sheet design,” Schloesser says. “Eventually you’ll see us flying autonomously; that’s something we’ve set as a goal for the program. That won’t be this summer, but it’s not years away—it’s imminent. If not this year, early next year.”
As confidence in the V-280 swells at Bell, the company is actively encouraging government test pilots to come and fly it. Many service members have already visited Bell’s facilities in Dallas/Fort Worth, Texas, to fly the simulator and see the systems integration laboratory, but the company also wants government experimental test pilots at the controls during the test program.
Schloesser confirms that an Army pilot already has flown the V-280 during testing and provided a debriefing to the JMR-TD program team at Huntsville, Alabama’s Redstone Arsenal. The warrant officer is an experimental test pilot from the “Night Stalkers” 160th Special Operations Aviation Regiment.
Now that an Army aviator has taken the reins, Schloesser also encourages the Marine Corps to get involved. Valor is one of several candidates for the Pentagon’s Future Vertical Lift-Medium, an Army-led, multiservice acquisition program aimed at eventually replacing the Army Sikorsky H-60 Black Hawk and Marine Corps Bell H-1 Huey. Since JMR-TD is a risk-reduction exercise for FVL, Bell encourages both services to monitor testing, review the data, and fly.
“We’d like to invite other experimental test pilots from the Marine Corps to also play a role,” Schloesser says. “The more they get to fly the aircraft in all its modes—hover through cruise—the better. As much as the test data will prove out what we believe to be the facts, having service test pilots who can give a subjective analysis from the reality of them flying is really important.”
While the Marines are already believers in tiltrotor technology, having adopted the Bell-Boeing V-22 Osprey, Bell has a ways to go in convincing the Army that tiltrotors are safe, affordable, producible in large numbers, and as agile as a helicopter.
“While speed and range are absolutely critical to this program, I can’t overemphasize that the agility at hover, near-hover, and slow speeds is absolutely critical. We’ll prove that, too,” Schloesser explains. “The Army is the one we have to convince, and they have very stringent requirements for operations on the ‘X,’ in the objective area. Level 1 handling is going to be critical to demonstrate.
“I don’t expect the Army to trust our word, but take a hard look at the test results. We’re going to prove this aircraft is every bit as agile as a helicopter on the 'X'."
fredymac said:Those oversized tails are reminiscent of the YF-22. V-280 art work shows much smaller ones so it will be interesting to see how production versions wind up.
fredymac said:Those oversized tails are reminiscent of the YF-22. V-280 art work shows much smaller ones so it will be interesting to see how production versions wind up.
Very possible. Also possible these prototypes are taking no chances, and after compiling a bunch of data from the flight test program they'll be able to shave a bit off.Skyblazer said:fredymac said:Those oversized tails are reminiscent of the YF-22. V-280 art work shows much smaller ones so it will be interesting to see how production versions wind up.
It is not unusual through the course of aviation history to see optimistic artist's concepts with small tails becoming production aircraft with enlarged tails. It happened quite often in fact... Once a paper design has been thoroughly tested in wind-tunnels and/or in flight, modifying the tail is often a way to fix some aerodynamic or stability problems that were not envisaged in the drafting stages. So my opinion on this is that the enlarged tail is here to stay...
Moose said:Very possible. Also possible these prototypes are taking no chances, and after compiling a bunch of data from the flight test program they'll be able to shave a bit off.
I imagine that the small stabilizers are optimistic, since weight is king. That said the current design represents the design stage when the engineering effort was frozen to build the demonstrator/prototype. There are likely a number of changes in the base design just from the ongoing flight testing.Moose said:Very possible. Also possible these prototypes are taking no chances, and after compiling a bunch of data from the flight test program they'll be able to shave a bit off.Skyblazer said:fredymac said:Those oversized tails are reminiscent of the YF-22. V-280 art work shows much smaller ones so it will be interesting to see how production versions wind up.
It is not unusual through the course of aviation history to see optimistic artist's concepts with small tails becoming production aircraft with enlarged tails. It happened quite often in fact... Once a paper design has been thoroughly tested in wind-tunnels and/or in flight, modifying the tail is often a way to fix some aerodynamic or stability problems that were not envisaged in the drafting stages. So my opinion on this is that the enlarged tail is here to stay...
ARLINGTON: How new is Bell Helicopter’s shiny showroom — excuse me, Advanced Vertical Lift Center — minutes from the Pentagon and the Capitol? Between the time I arrived this morning and the time I headed out, they installed two huge mockups of their high-speed V-280 Valor tilrotor. But these aren’t land-based troop transports like the prototype Bell’s already flying for the Joint Multi-Role (JMR) demonstration program. They’re heavily armed gunships.
bobbymike said:https://breakingdefense.com/2018/08/bell-pushes-v-280-gunship-shipboard-variants-recon-in-works/
ARLINGTON: How new is Bell Helicopter’s shiny showroom — excuse me, Advanced Vertical Lift Center — minutes from the Pentagon and the Capitol? Between the time I arrived this morning and the time I headed out, they installed two huge mockups of their high-speed V-280 Valor tilrotor. But these aren’t land-based troop transports like the prototype Bell’s already flying for the Joint Multi-Role (JMR) demonstration program. They’re heavily armed gunships.
AeroFranz said:Depends how hard they want to make life on the FCS guys. The AW609 people thought they could get away with no rudder, and its absence contributed to the loss of a prototype. I'm not saying it can't be done, but whatever they do, they'd better prove it's a robust solution.
litzj said:what is the missile like cuda? on the pylon
TomS said:litzj said:what is the missile like cuda? on the pylon
Looks like a generic SACM stand-in.
Moose said:It's pretty interesting how much better Bell has been in pushing this concept than in past projects. Maybe part of it is just how much the Sikorsky effort has vanished of late, but V-280 keeps popping up and staying visible. Wonder if they brought in a new marketing team or if they just figure this is a program that really needs to be sold.