Rob Coppinger, Flightglobal’s tech and space editor, is covering the AIAA Joint Propulsion Conference in Denver, and he reports:
Lockheed Martin is developing a spoiler for F-35C Joint Strike Fighter flight test aircraft to counter potential wing drop in transonic turns.
Wing drop in high rate transonic turns is a problem because it results in a turn becoming a roll.
Because leading and trailing edge flaps may not be enough to counter this phenomenon, the carrier variant F-35C will have a 4.5kg (10lb) spoiler added to the centre of its outboard wing for the test programme.
Lockheed currently believes the potential wing drop problem can be resolved with flight control software changes, but the spoiler will be added at least for the flight test phase.
Brig Gen David Heinz, F-35 program executive, told reporters on 3 June that the experience gained from the Boeing F/A-18E/F program had helped them resolve the wing drop issue for the F-35 in simulation. At the time, I interpreted Heinz’s statement as meaning such a wing fence or spoiler or would not be necessary, but that was an incorrect assumption on my part.
If you’re wondering how the spoiler will affect the F-35C’s radar cross section, Coppinger put that question to Lockheed executive JD McFarlan, who replied: “It has been designed to be LO [low observable, or stealth]-compliant”.
Blue your not making any sense!
1. This spoiler is for the C version!
2. The spoiler is to prevent wing drop.
3. The F-18F still has a higher AOA with the spoiler in place than a Rafale.
4. It says above ” AT LEAST THE TEST PHASE” I am unclear if this is permanent.
5 . You come off as desperate.
So what your basically saying is that Unless your fighting in Hilly European terrain the Rafale is at a disadvantage? Yes I see because most of the worlds hot spots have mountainous European terrain to hide behind. No one would ever think of having a war in the desert! Now excuse me while I pick apart your flight global article.
Remember how how a pilot said he saw the F-22 through the cockpit window and still couldn’t get instrumentation on it.
Royal Air Force
The first British prototype made its maiden flight on 30 October, 1974. On 11 July, 1985, the RAF reconnaissance version (GR1A) made its maiden flight. RAF Tornado GR1s and GR1As were used during the Gulf War, Operation Desert Fox and the Kosovo War.
The Tornado’s combat debut came in 1991 in the Gulf War. Nearly 60 GR1s were deployed by the United Kingdom to air bases at Muharraq (Bahrain), Tabuk and Dhahran in Saudi Arabia.[4] In the early stages of Operation Granby RAF Tornado GR.1s were used to target Iraqi military airfields using 1,000 lb (450 kg) unguided bombs in loft-bombing attacks and the JP233 runway denial weapon. Six RAF Tornados were lost, as was one Italian Tornado. Of the RAF aircraft, four were lost while delivering unguided bombs, one was lost after delivering JP233, and one was lost trying to deliver laser-guided bombs.[5]
For the Gulf War (Operation Granby), the ALARM missile and TIALD pod were rushed into service for RAF IDSs. Seven RAF aircraft were lost during the conflict. Three were shot down in combat, three crashed on operations and one was lost in a non-combat incident.[6] Laser guided bombing was introduced at Muharraq on 2 February using Blackburn Buccaneers as airborne designators. Over 1500 bombing sorties and 100 JP233 sorties were flown by RAF Tornados during the Gulf War.[7]
On 17 January 1991, a Tornado was shot down by an Iraqi SA-16 missile after a failed bombing run.[8] On 19 January, a second RAF Tornado was shot by a short range SAM or MANPADS during a raid on Tallil Air Base. On 14 February a third RAF Tornado was downed by radar guided SAMs, either SA-2 or SA-3. [6][9] It has been claimed that a Tornado (ZA467) crewed by Gary Lennox and Adrian Weeks was shot down on 19 January by an Iraqi MiG-29 piloted by Jameel Sayhood with a R-60MK missile,[10] however this aircraft is recorded as having crashed on 22 January on a mission to Ar Rutbah.[6][11]
Following the end of the initial phase of the war, the GR.1s were switched to medium level strike missions. In an emergency deployment, the UK sent out a detachment of Blackburn Buccaneer aircraft equipped with the Pave Spike laser designator, allowing the GR.1s to drop precision guided weapons. A further crash programme was initiated which saw some GR.1s fitted with the TIALD system. In the aftermath of the war, British forces remained in the Gulf, with GR1s being based at Ali Al Salem airbase in Kuwait for operations over the southern no fly zone. GR.1s based there took part in Operation Desert Fox in 1998.
Low level is bad.
Just ask the Brits how a low penetration strategy worked during desert storm.
and that was nearly 20 years ago. Low level penetration is a cold war relic.You either need stealth or escort jamming so you can stay at high or medium alt and take advantage of weapon range.
This is getting silly, we have already established that the F-35 will fire SDB and JDAM at Mach 1.5+ Increasing the range by a wide margin. Why would you want to be 2k feet off the ground and get hit by small arms fire when I can hit more targets than you can from 70+ miles away? Again here the Rafale comes up short! Can it hit 8 different targets from 70+ miles away? Can it even drop 2k or 1k class at supersonic speed? You will cry out ” we can use the scalp/storm shadow” but the F-35 can use both weapons. It can carry a 2 scalp 8 SDB load or a 2 scalp + 2 JDAM load. launch the scalps, then proceed to its target at top speed for SDB release.
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I mean out dated weapons by not having a a SDB equivalent I didn’t stutter, you know what I mean. Couple that with no ability to drop JDAM and SDB from range and the Rafale starts to look ancient.
is 2012 now? LOL it didn’t come out of the assembly line with an AESA you know what I’m talking about.
I meant the Rafale doesn’t have an AESA, and lacks the integration of the F-35.
Unless your being sarcastic
Like I said before regarding the Rafale: Poor acceleration, poor time to climd for a twin engine aircraft, out dated weapons,
less turning ability than a F-35, No stealth with a HUGE blow torch of a butt lighting up the night sky. Cant even Do over 30+ degrees AOA. No Aesa with a Hodgepodge of unintergrated systems.
Convoluted user interface that needs 100 hours just to figure out.
Ohh and did I mention it has a big butt?
😀
A
http://www.youtube.com/watch?v=k4he79krseU
Ok, so what we know so far is:
1. The F-35s UI is more advanced that even the Squalls
“Even the Armée de l’Air acknowledge that it takes more than 100 flying hours to get used to the collimated cockpit display, they told Combat Aircraft”
2. The F-35 either matches or exceeds the Rafale in full combat configuration ( That is maybe 1/2 fuel load) In thrust, time to climb ect.
“350 kt, in full afterburner at 35 degrees nose up is not that impressive – at that angle Typhoon will go Supersonic! Note that he was initially only allowed to fly A/S FCS laws! The quoted turn performance (mild buffet at 4.5 g and dry power and a sustained 5g at 350 kts needing 10 deg nose down pitch) is less than startling -our test pilots could do as well in an F-15 19 years ago when they assessed it at the end of the ETPS course. The acceleration (taking approximately 10 seconds to go from 200-500 knots) is good but so it should be for a twin engine fighter at that weight and altitude.
3.Can reach 55 degrees of AOA in trimmed flight while the Rafale can do only +30
4. Has much better situational awareness 360 degree IRST SAR mapping for every sector AESA radar.
5. Is only slightly more expensive that the Rafale
6 Has all aspect stealth.
7. When using the SDB can hit double the targets of the Rafale. But even in stealth mode can hit more targets than a Rafale
8. Can carry as much fuel internally as a Rafale with external tanks.
9. The engine is shielded from many angles so that IR sensors cannot get a clean look at the exhaust nozzle.
10. wait did i for get something is this saying that the F-35 out turns the Rafale also?
F-35:a top turning speed of 370 kt. at 9g and 15,000 ft.; and a sustained turn capability of 4.95g at Mach 0.8 and 15,000 ft. Moreover, an aircraft with those performance figures would carry two beyond-visual-range AIM-120 Advanced Medium-Range Air-to-Air Missiles (Amraams) in the internal weapons bay.
Rafale:The quoted turn performance (mild buffet at 4.5 g and dry power and a sustained 5g at 350 kts needing 10 deg nose down pitch) is less than startling -our test pilots could do as well in an F-15 19 years ago.
Real good info on the squall
Flight printed the cover line ‘Rafale Rules!’ on it’s front cover – together with the taster “Why we think favourite for UAE fighter contest is most complete combat aircraft we have flown.”
Flight’s test pilot (Pete Collins, a retired RAF Wing Commander, former RAF test pilot and Red Arrow) concluded that: “If I had to go into combat, on any mission, against anyone, I would, without question, choose the Rafale.”
From such a pilot, this ringing endorsement seemed, on the face of it, to be unarguable.
But RAF Typhoon pilots in the UAE reacted with puzzled amusement and barely disguised scorn.
“If he thought that, he can’t have flown Typhoon” one told me, bluntly, while another (who had actually flown Rafale) explained that “the Rafale is underpowered by comparison with Typhoon, and needs reheat where we would use dry. We can get through the Mach and supercruise in dry power at typical operating altitudes, and you simply can’t do that in Rafale.”
Pilots who had experienced Rafale’s much vaunted MMI were less than fulsome, concluding that it was “probably great if you’re a Mirage 2000 pilot, but the test will be how a rookie adapts to it.” Even the Armée de l’Air acknowledge that it takes more than 100 flying hours to get used to the collimated cockpit display, they told Combat Aircraft.
And looking into the Flight flight test more carefully, it became clear that the glowing praise was based on flimsy foundations, as an RAF test flying insider (who has flown Typhoon, all of the US Teen Series fighters and the MiG-29) explained to us.
The Flight pilot
“Though Flight’s test pilot is a distinguished former RAF fighter and test pilot, he has little recent, relevant experience that would provide him with any real basis for comparison with the Rafale.
“Collins’ operational RAF flying was in the old ‘steam driven’ Harrier GR.Mk 3, and he also flew in the Falklands in the Sea Harrier FRS.Mk 1. As a Squadron Leader he flew with the Red Arrows but left the team after an aircraft accident.
“He trained as a Test Pilot in 1989, but then served at RAE (later DRA) Bedford on pure Aerospace Research flying – including flying the VAAC Harrier, which was used to develop an advanced FCS for the F-35. He did not serve at Boscombe Down and thus gained no experience of clearance/assessment/’operational fitness for purpose’ testing.
“Collins left the RAF and military test flying world in 1993 and joined Fokker where he flew F60 & F70 airliners, moving to Dornier at Ober Pfaffenhofen for two years after Fokker went bust. He flew the Do 328 turboprop and 328 Jet at Dornier. He subsequently joined KLM. He joined Raytheon as the UK TP/project pilot on the ASTOR Sentinel, and is still with Raytheon, based at Broughton in North Wales.
“Collins writes for Flight as a freelance ‘guest Test Pilot’ – mostly civil business jets and trainers, but he has flown and ‘reviewed’ four military trainers, the Aermacchi M311 and M346, the KAI T-50 and the Pilatus PC-21.
“As far as I know, the Rafale is the first Combat jet he has flown since the Harrier. He has not written any other articles on such aircraft. He has not flown much in the way of other advanced jets even when he was in the RAF. His comparisons with the Mirage 2000 seem to be quite dated – I suspect that he flew the Mirage 2000 as part of his ETPS course.”
The article itself
“Though a magazine article, it follows a well known and internationally accepted formula for a single flight evaluation. It is important to note what is an actual part of the evaluation and what is ‘background’
“The article begins with a basic history of the aircraft’s development and in-service history. (Note though, the two-year software upgrade cycle!)
“The article moves on to a detailed aircraft description (headed Superb Performance & Cockpit Image). But while he broadly follows the template, he often strays from the normal specific Test Pilot descriptions and uses journalistic descriptions and superlatives which are not proven.
“He makes much of the fact that he flew front seat with 90 minutes cockpit familiarization – as if this was an unusual attribute that somehow demonstrates the greatness of the Rafale.
“This is not the case – Test Pilot training is to do exactly that for many aircraft. RAF test pilots routinely fly fighter types like this on one or two sortie evaluations, including the Su-27 Flanker, F-14, F15, F-16 and F/A-18.
“The article then moves on to the Test Flight itself, beginning with Pre-mission planning. Overall this was a very simple sortie profile, and his comments are hardly incisive.
“350 kt, in full afterburner at 35 degrees nose up is not that impressive – at that angle Typhoon will go Supersonic! Note that he was initially only allowed to fly A/S FCS laws! The quoted turn performance (mild buffet at 4.5 g and dry power and a sustained 5g at 350 kts needing 10 deg nose down pitch) is less than startling -our test pilots could do as well in an F-15 19 years ago when they assessed it at the end of the ETPS course. The acceleration (taking approximately 10 seconds to go from 200-500 knots) is good but so it should be for a twin engine fighter at that weight and altitude.
“Roll rates were clearly assessed at 1 g – a better evaluation would have been at elevated g or AoA as a combat capability – noticeably missing in his test.
“At 25,000 ft he went supersonic in a shallow dive – he does not say what power he used – if it was using afterburner, this is not great SEP (specific excess power). He made no comments on radar handling or as to what range the TV was used at. He treated pitch sensitivity as an indication of how agile the aircraft is – and this is bad Test Pilot analysis. The assessment of the AAR laws was cursory. His comments about the tail chase were similarly lacking – he could be comparing this to a Hawk and not another advanced aircraft.
“Two approaches in Auto-throttle mode say little about the aircraft, and Collins made no mention at all of flight path stability and the ability to rapidly correct a poor line up from decision height – both essential TP tests for approaches.
“Achieving 1 hour and 25 minutes with 5.3 tonnes of fuel (needing a centre line tank) and landing with 500 kg after the profile described says to me that the aircraft is not that different from the competition when it comes to range/endurance/fuel consumption.
“He is right in saying that he ‘only scratched the surface of the sensor and weapon capabilities’. That explains his claim to be ‘fully at home in the aircraft, retaining full situational awareness.’
“The evaluation was rather cursory and the concluding superlatives are more journalistic than real conclusions and recommendations. If he would risk his life in any combat situation based on the evidence of what he actually saw…… words fail me!”
Another thing occurred to me. if the F-35 hits AB and fires AMRAAMs at mach 1.6 the characteristics are very similar indeed to the F-22. Sure a Rafael can fire its missile at the same speed in a very weak a2a mode but I seriously doubt if it will be able to so with all of the wing tanks on. And certainly not with both wing tanks and bombs. So the F-35 does have a weapons range advantage due to the fact that its fighting in a clean configuration. I remember when the IRST was the talk of the town, now it tickles me to see the euro-canard fans falling over themselves trying to down play it.
Blues Id certainly like to know how you would jam a IRST? Id like to know how you would deal with the EOTS passively tracking and locking on to you?
Here is more
http://www.youtube.com/watch?v=hzDke56vMiU AESA radar
Notices the overlapping capabilities
The F-35’s avionics are highly integrated, and for weapons targeting and employment the system must have a point of interest. A cursor designates the system’s point of interest and is controlled by the slew switch/cursor control on the throttle. The cursor navigates within the active portal, indicated by a yellow corner hash mark. The portal of interest (PoI) can be the HMD, DAS, radar, EOTS or tactical situation display (TSD). Changing PoIs is primarily accomplished using the data management switch on the sidestick. The cursor’s shape changes as function of the PoI and target type (airborne or surface).
The large display area is a palette on which a detailed picture of the tactical situation can be presented. Fused data from the active and passive sensors, as well as datalink information, is used to present the tactical situation in real time. Typically a pilot will use half the display (10 x 7in) for the TSD. The display scale can be tailored to the situation, with ranges from 18.5km (10nm) to 1,185km available. Own ship position, as well as that of other formation members, is in blue. Ground and airborne points/targets are colour-coded: green friendly, yellow undetermined and red hostile.
Target depictions are graphically coded to indicate where the information came from. For airborne targets, shown as a lollypop, the circle is either hollow, half filled or full. Hollow indicates on-board data alone filled indicates only off-board sensors half filled means both on- and off-board sensors are seeing the target. The stick of the lollypop is at first a velocity vector. When the sensors get a lock, the stick increases in length, approaching but not touching the targeted aircraft. The stick extends to touch the targeted aircraft when the fused sensors determine the F-35 has a launch solution on its target. Geographic boxes/lines can be displayed to show areas such as missile engagement and no-fly zones.
Shoot list
To give me a better feel for the F-35’s capabilities, Skaff set up two scenarios, one air-to-air and the other air-to-surface. For the air-to-air engagement, my four-ship formation of F-35s targeted four Red aircraft. Using the cursor I locked on to all four aircraft to develop a shoot list. When locked to a target, an expanded data block is presented on the TSD. This identifies the aircraft type, as determined by the numerous sensors, with system confidence level for the determination. Also presented are target range, closure velocity, aspect angle and which sensors are seeing the target.
The targets now all had upright red triangles over them, with numbers corresponding to their priority in the shoot list. On the lower left-hand corner of the TSD was a relative height scale, which showed the altitude of my aircraft and the four targets on a vertical bar. The red lollypop symbols advanced towards my formation, our presence undetected.
At maximum engagement range, as indicated in the HMD, I launched a generic radar-guided missile at the first aircraft in my shoot list. Using the tactical management switch on the sidestick I stepped through the shoot list to engage the fourth target, leaving numbers two and three for my wingmen. I launched the second missile at number four, and the flight of both missiles was tracked and presented on both the HMD and TSD. Time to impact was also presented, a neat feature. All four Red aircraft destroyed, the exercise was terminated to set up the air-to-surface scenario.
For the ground-attack exercise, the F-35 was positioned north of Nellis AFB, Nevada. The targets, several hangars on the flightline, would be engaged with 1,000lb (450kg) GPS-guided bombs. The cockpit display was configured with a 5 x 7in TSD portal to the far left, 5 x 7in DAS portal middle left, 5 x 7in EOTS portal middle right and 5 x 7in synthetic aperture radar portal far right. After placing the cursor in the SAR portal to designate the PoI, I turned 20e_SDgr away from the target to enhance the Doppler return from the target area.
The time required for the radar to build a usable SAR image was shown. Using the stored SAR picture I slewed the cursor over the first hangar. Next I moved the cursor to the EOTS portal to refine my aimpoint, a first-floor window. The target was designated using the TMS switch, making it the first in my shoot list. A second hangar, further south on the field, was the next target, again selected using the stored SAR picture and the aimpoint refined with the EOTS display.
A total of five targets were designated, each represented on the TSD as an inverted red triangle. Had enemy air defences been present, their altitude-dependent lethality zones would have been presented on the TSD to show areas to avoid on the run-in. The first target on the shoot list was chosen for engagement. Flying towards the target, a launch acceptability region was presented on the TSD, “centred” over the target. Holding the pickle button on the sidestick consented to weapon release. Time to release was presnted in the HMD and TSD.
The second target on the shoot list was the next and last to be engaged. As with the first hangar, the only required pilot action now was to fly the F-35 into the launch basket and consent to bomb release.
simply awesome stuff
http://www.flightglobal.com/articles/2007/07/31/215810/flight-test-f-35-simulator-virtual-fighter.html
ROFL, its good to see someone on this board with a sense of humor.
So anything can be stealth if i just throw ram on it?
I wonder if I stick my rear end in the air flow and ram coat it will it still be stealthy?