Topic Closed »»»»error 7217AuthorTopic: error 7217musgroveMemberMember # 1643posted 04:17 PMMr.
Mar 25, 2007 Europ Air War- NVIDIA- Please help. Hi, just got EAW, and it is not working (err 7217). Maybe alot of you people can revert to older driver, but I have Gf 6150 onboard, and it is new chipset and hence supported only in 80+ forceware drivers! I know the fix for european air war will not work for avp as avp does not support glide.
Celebrated as one of the Pacific War’s best fighters, Lockheed’s Lightning earned a less-than enviable reputation in European air combat.The American fighter pilot spotted two indistinct shapes cutting diagonally across a road just slightly above and in front of him. They were blemishes in motion. Twelve o’clock high, he thought. He rechecked his armament switches, rammed his throttles to full power and went down low, as low as he dared, hugging the treetops.
The afternoon shadow of his P-38 Lightning raced across French hedgerows and fields as the pilot sought to identify the other two aircraft. He wanted them to be Focke-Wulf Fw-190s, falling nicely into the crosshairs of his nose-mounted 20mm cannon and four.50-caliber machine guns.Captain Robin Olds kicked left rudder, slid his pipper across the nearest plane’s left wing and, in an instant of epiphany, saw the Iron Cross painted on the rear fuselage. Until that instant, he hadn’t been certain the planes were German. Olds shot down one of the Fw-190s moments later, then followed the second into a violent left break, fired and watched the pilot bail out. It was August 14, 1944, and Olds had just used his P-38 Lightning to rack up the first two of his eventual 13 World War II aerial victories.“I loved the P-38 but I got those kills in spite of the airplane, not because of it,” Olds recalled. “The fact is, the P-38 Lightning was too much airplane for a new kid and a full-time job for even a mature and experienced fighter pilot. Our enemies had difficulty defeating the P-38 but, as much as we gloried in it, we were defeating ourselves with this airplane.”It was, Olds hastened to add, “the most beautiful plane of our generation.” And it fought well in the Mediterranean and the Pacific.
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So what happened in northern Europe, and how could things have gone so wrong?A survey of Stateside training bases in 1941 showed that 87 percent of prospective pilots requested to be assigned to the big, sleek, twin-engine Lockheed Lightning. “We were in awe of the P-38,” said future ace Jack Ilfrey. “It looked like a beautiful monster.” “If you were a boy in America, you wanted to fly it,” said another future ace, Winton “Bones” Marshall.
“If you played with Dinky metal toys and balsa wood airplane models, you wanted to fly it.” On the eve of Pearl Harbor, the P-38 captured the imagination of young Americans like no other fighter. Eighth Air Force commander Lt. “Jimmy” Doolittle would later call the P-38 “the sweetest-flying plane in the sky.”With tricycle gear, twin booms and a centerline fuselage pod brimming with guns, the P-38 was powered by two 1,600-hp Allison V-1710-111/113 liquid-cooled engines driving three-bladed, 9-foot Curtiss Electric propellers. Although a fully loaded Lightning weighed more than 10 tons—nearly twice as much as a P-51 Mustang—a skilled pilot could fling the P-38 around like a lightweight. The problem was that while American pilots were generally well trained, they weren’t well trained for a complex twin-engine fighter.Struggling to keep the air campaign over Europe alive in the face of disastrous bomber losses, the U.S. Army Air Forces rushed two P-38 combat groups to England. On October 15, 1943, the 55th Fighter Group became the first to conduct operations.
The Lightning men mixed it up with Me-109s and Fw-190s on November 6, and racked up their first aerial victories. O2jam online game. “We were arrayed against the Luftwaffe and they were facing us head-on,” one of the pilots said, “and we were not winning.”The P-38 performed usefully but suffered from a number of problems. Its Allison engines consistently threw rods, swallowed valves and fouled plugs, while their intercoolers often ruptured under sustained high boost and turbocharger regulators froze, sometimes causing catastrophic failures.Arrival of the newer P-38J to fill in behind the P-38H was supposed to help, but did not help enough.
The J model’s enlarged radiators were trouble-prone. Improperly blended British fuel exacerbated the problems: Anti-knock lead compounds literally seethed out and became separated in the Allison’s induction system at extreme low temperatures. This could cause detonation and rapid engine failure, especially at the high power settings demanded for combat.The P-38’s General Electric turbo-supercharger sometimes got stuck in over-boosted or under-boosted mode. This occurred mainly when the fighter was flown in the freezing cold at altitudes approaching 30,000 feet, which was the standard situation in the European air war. Another difficulty was that early P-38 versions had only one generator, and losing the associated engine meant the pilot had to rely on battery power.In an article on ausairpower.net, Carlo Kopp noted that in their early days in the European theater, “Many of the P-38s assigned to escort missions were forced to abort and return to base. Most of the aborts were related to engines coming apart in flight.due to intercoolers that chilled the fuel/air mixture too much. Radiators that lowered engine temps below normal operating minimums.
Oil coolers that could congeal the oil to sludge. These problems could have been fixed at the squadron level. Yet, they were not.”Eighth Air Force historian Roger Freeman described how bravery plus the P-38 was not enough during a mission on November 13, 1943, “an unlucky day for the 55th.
In typical English November weather, damp and overcast, forty-eight P-38s set out to escort bombers on the target leg of a mission to Bremen; one turned back before the enemy coast was crossed and two more aborted later. At 26,000 feet over Germany, pilots shivered in bitterly cold cockpits, flying conditions were unusually bad, and the probability of mechanical troubles at that temperature did not help. Again outnumbered, the 55th was heavily engaged near the target as it strove to defend the bombers, for which it paid dearly. Seven P-38s fell, five to enemy fighters and the others to unknown causes.” Another 16 Lightnings limped home with battle damage.Things got better. The arrival of the improved P-38J-25 and P-38L models, modified on the production line based on lessons learned in Europe, helped, but problems remained. Lightning pilot 2nd Lt. Jim Kunkle of the 370th Fighter Group remembered: “The critical problem with us was we didn’t have much heat in the cockpit.
On high altitude missions it was very cold. And we didn’t have the engine in front of us to help keep us warm. Bomber guys had those heated blue union suits that they wore but we tried heated clothing and it didn’t work for us.”The only source of heat in the cockpit was warm air ducted from the engines, and it was little help. Lightning pilots suffered terribly. “Their hands and feet became numb with cold and in some instances frost-bitten; not infrequently a pilot was so weakened by conditions that he had to be assisted out of the cockpit upon return,” wrote Freeman.Major General William Kepner, the fiery commanding general of VIII Fighter Command, wondered, as so many others did, why the P-38 wasn’t producing the results everyone wanted, and what to do about it.
Asked to provide a written report, 20th Fighter Group commander Colonel Harold J. Rau did so reluctantly and only because he was ordered to.“After flying the P-38 for a little over one hundred hours on combat missions it is my belief that the airplane, as it stands now, is too complicated for the ‘average’ pilot,” wrote Rau.
“I want to put strong emphasis on the word ‘average,’ taking full consideration just how little combat training our pilots have before going on operational status.”Rau wrote that he was being asked to put kids fresh from flight school into P-38 cockpits and it wasn’t working. He asked his boss to imagine “a pilot fresh out of flying school with about a total of twenty-five hours in a P-38, starting out on a combat mission.” Rau’s young pilot was on “auto lean and running on external tanks. His gun heater is off to relieve the load on his generator, which frequently gives out (under sustained heavy load). His sight is off to save burning out the bulb. His combat switch may or may not be on.” So, flying along in this condition, wrote Rau, the kid suddenly gets bounced by German fighters.
Now he wonders what to do next.“He must turn, he must increase power and get rid of those external tanks and get on his main fuel tank,” Rau wrote.