Jura The idiot
General
Yes, that was my fault, I started "talking" before engaging brain!
I gave you the benefit of the doubt LOL
Yes, that was my fault, I started "talking" before engaging brain!
Yes, just thinking about my beloved Raptor makes me a little Hypoxic, she is no doubt a sweetie?? but your post about the F-15 driver in the 172 is an awesome opportunity for the "preacher" to debunk one of the most evil lies straight out of the pit of HELL!
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in that article () -- related to what's stirred the debate here like three month ago ()Pilots will not be able to fully exploit the synthetic aperture radar modes until Block 4 software is in service, years from now, nor will a video link to the ground controllers be available at IOC.
“The basic capability in the airplane we go to IOC with will have some communication capability,” Carlisle says. “We won’t have the Rover [data-sharing system] . . . where they can see the pod [video] and we can talk guys on [to targets] very easily.”
OK OK check this:
in that article () -- related to what's stirred the debate here like three month ago ()
I gave you the benefit of the doubt LOL
OK OK check this:
in that article () -- related to what's stirred the debate here like three month ago ()
OK OK check this:
in that article () -- related to what's stirred the debate here like three month ago ()
source:The Navy and Marine Corps are preparing their amphibious assault ships for the first ever deployment slated for 2018.
The Marine Corps short-take-off-and-landing variant of the Joint Strike Fighter, the F-35B, will be the first ever fifth-generation aircraft to deploy. The Navy is working to prepare the flight decks, sensors and weapons systems on board several amphibs are ready in 2018, service leaders told reporters April 7.
“We are making sure that the amphibs are ready to take the F-35 because they are going to be the first ones out. We will have the first F-35s deployed out in the world – of any service in any country. They will be on big deck amphibs. That’s exciting but it’s a real challenge to move forward with that,” said Maj. Gen. Robert Walsh, Navy Director of Expeditionary Warfare.
The Navy is set to provide the modifications to the , the amphib commissioned this past October. It is the lead ship in a series of 11 planned America-class big-deck amphibs.
“The ship’s going through hull, mechanical and electrical mods for the F-35, including environmental mods. Some of it is deck related and some of it is lighting related. It lands on the deck differently than the ,” Walsh said.
The USS America will undergo a series of intense modifications to ensure the flight deck can withstand the heat of the F-35B vertical take-offs-and-landings. Navy engineers are installing a new heat-resistant material designed to prevent heat from the aircraft’s engines from burning a hole in the flight deck, Navy officials said.
The flight deck modifications entail adding intercostal structural members underneath flight deck landing spots numbers seven and nine, a Navy official said. With the added structure, these two landing spots will provide the capability to perform closely timed cyclic flight operations with the F-35B without overstressing the flight deck, he added.
Also, some of the modifications may involve re-adjusting some of the ship’s antennas in order to allow for a clear flight path for the JSF.
These efforts involve reinforcing the flight deck with additional structural materials and moving items further down below the deck.
“Much of the effort in the America, the very time-consuming piece, is going inside the ship and dropping lighting and ventilation and piping wiring and everything down far enough so you can install new material and weld it in place and then restore all that stuff,” said Rear Adm. David Gale, Program Executive Officer, Ships.
The modifications planned for the USS America will emulate those already completed on board the USS Wasp, an amphibious assault ship which has been testing with F-35Bs for months. The Wasp is slated for F-35B operational testing next month.
“A lot of this is structural flight deck work. We’ve learned a lot on the WASP from a back-fit perspective. A lot of the effort involves having to draw services inside of the ship out of the overheads, take out insulation and go strengthen the flight deck,” Gale said.
The second America-class big-deck amphib, the USS Tripoli, is now being built with the F-35B modifications built in from the start.
“On the Tripoli, the deck is thicker right from the start. The structural supports for the deck are being built into the ship,” Gale added.
The USS Tripoli will be delivered to the Navy in 2019.
Unlike previous amphibious assault ships, the first two America-class big deck amphibs are being built without a well deck in order to optimize the platform for aviation assets such as the MV-22 Osprey and F-35B.
The third America-class amphib, called LHA 8, will feature the return of the well deck.
Walsh said the Navy is outlining how operations will change with the F-35B versus the Harrier jets the fifth generation fighter is replacing.
Harrier jets, which also have the ability to conduct vertical take-off-and-landings, are multi-role jets primarily designed for light attack missions. The Joint Strike Fighter brings a wide range of new sensors, weaponry and aviation technology to the Corps.
“What are the C5I (command, control, communications, computers, collaboration) requirements for the F-35B because they are not going to be how we operated the Harrier. What is the requirement for the F-35 to be able to disseminate data across the battlefield? What pipes need to be there?” Walsh asked.
Rear Adm. Peter Fanta, Director of Surface Warfare, said the F-35B brings a much different capability to the amphibious force, compared with Harriers.
“Having lived with Harriers on big decks – Harriers are relatively short-legged, short, operational rapid turn-around assets. Now we’re putting out an aircraft that can go for hours and travel long distances,” Fanta said.
Fanta also said that sensors, radars and weaponry on board amphibs are also being upgraded to better integrate with the F-35. For example, elements of a combat system called Surface Ship Self-Defense System are being engineered to work with Joint Strike Fighter technologies.
Fanta said the Navy is also upgrading the seeker on various ship defensive systems such as the Rolling Air Frame missile and NATO Evolved Sea Sparrow Missile to an active seeker.
“They are both going to higher threats and higher maneuver capability,” Fanta added.
My favorite radio station had an item three quarter of an hour ago saying that correcting the bugs in F-35's software will take so much time that the aircraft will be introduced in Dutch service not in 2019 but probably in 2022.
does anybody know the current status?Software aside, the greatest issue still standing is the F-35B's 496 Bulkhead, which in 2004 was switched to aluminium from its original titanium design in order to reduce weight, with the unwanted result that, during airframe durability testing on the ground, it cracked, and then severed, at just after one simulated flying life.
In order to be certified for its intended 8000 hours life, the F-35's fuselage must survive 2 simulated life cycles, with a third life cycle planned for validating the possibility of extensions beyond the 8000 hours.
Durability testing on the F-35B's airframe has been stopped many months ago because of the 496's failure, and a redesigned bulkhead is needed.
source:Pratt & Whitney is ramping up retrofits to operational engines with a fix to the problem that led to a catastrophic engine fire last year in the Joint Strike Fighter, and aims to modify the entire fleet by the first quarter of 2016.
The engine maker also aims to define a long-term solution by the middle of this summer, Pratt & Whitney Military Engines President Bennett Croswell says. “We have several candidates, including the current fix, and we’ll work with the [F-35 Joint Program Office] to identify what the long-term fix will be.”
The interim fix—called “pre-trenching”—deepens the gap in the polyimide foam lining between the tips of stators and the knife-edge seal forward of the third-stage integrally bladed rotor (IBR). The pre-trenching deepens the gap, enabling the spinning seal to pass through the end of the stators without creating friction. The company is also evaluating a couple of long-term solutions which include adding a hard coating to the seal plate to resist microcracks that occurred as a result of the frictional heating, or a combination of trenching along with a coating, Croswell adds.
All but one of the F-35 System Development and Demonstration (SDD) aircraft have been modified, apart from one F-35B currently undergoing evaluation in the U.S. Air Force 96th Test Wing’s McKinley Climatic Laboratory located at Eglin AFB, Florida. “We either have the pre-trench configuration installed or, on a couple of the jets—mainly the Flight Sciences jets—we have the burn-in procedure,” Crosswell says, referring to a series of specific flight maneuvers that have been devised to gradually wear in the trench between the stator and polyimide foam.
Pratt also says opening up clearances by pre-trenching has had a negligible effect on performance. Mark Buongiorno, head of the F135-engine program, describes the effect as “insignificant,” while Crosswell says, “we only gave up a couple of degrees of turbine temperature. Operability-wise it was no impact, so it was a pretty good solution.”
Tests to help confirm the configuration of the final fix are underway at a rub rig in West Palm Beach, Florida. “We still wanted to evaluate whether we could create a rub-in system that would give us the full capability of a matched set,” Buongiorno says. “We will use that to inform what will be the long-term solution,” comments Crosswell. “We are doing lots of parametric studies on polyimides to see if there’s any impact on orientation, and our clearance tools are much improved.”
Pratt also is gearing up for engine-production rates that were originally expected to have occurred two to three years before development delays began to seriously affect the F-35 program. The engine maker, which expects to deliver 60 F135s in 2015, is currently completing deliveries of engines for the seventh low-rate initial production (LRIP) batch of aircraft and will complete the eighth set in the second quarter. The company has submitted a proposal to the JPO for the ninth and 10th LRIP sets. “For the LRIP nine proposal we have submitted for 60 engines again, and LRIP10 goes to 100. So in 2017, we are finally going to start seeing the ramp that we have been waiting for,” Crosswell says.
The rate increase “is going to be very beneficial to us from a fixed-cost absorption perspective and we have continued to come down the ‘war on cost’ curve. But it has certainly been a challenge with the volume moving to the right,” he admits. Since the first production-representative engine was delivered in 2009, the cost of the F135 has been reduced by 55%, Croswell says. Officials from Pratt still decline to provide a dollar figure for the price of the engine, citing ongoing competitive pressures.
Pratt is now laying out a production plan for “post T300,” the milestone engine Pratt aims to be producing for the same cost as the engine, from which the F135 is derived. “That will form part of the ‘blueprint for affordability’ objective and we are in process of working that now with [the] JPO,” says Crosswell, who adds that as of March 31, the company has delivered 217 F135s, including special upgrade test units and SDD powerplants. At the time of Aviation Week’s visit to Pratt’s Middletown F135-production facility in early April, the company was set to deliver production engines 146 and 147.