When aircraft are no longer helpless on airfields, they are no longer vulnerable to Aj.

When spotting aircraft, observers notice the key attributes of an aircraft.

When surface to air missiles became capable of hitting high flying aircraft bombers, bombers used flight at low altitude to evade radar detection.

When the plane lands at Marseille, a French Gendarmerie assault team boards the aircraft and kills the hijackers.

When flying on an aircraft, a man decides to always bring a bomb with him.

When an aircraft is flying straight and level ( cruise ) most of the lift opposes gravity.

When an aircraft is at rest, there is no circulation.

When the plane lands in Malta, Egyptian commandos storm the aircraft, but 60 people die in the raid.

When in 1942 it became clearer that the fighting would go on for a while, car and truck factories were switched to war work in a modest way, Opel taking up the production of aircraft parts and tanks.

When civil aircraft started to use the field ( 17 December 1920 ) it was often called Schiphol-les-bains.

When landing the aircraft is much lighter due to the loss of propellant weight and a vertical landing is much easier to perform.

When it became clear that Soviet missiles could successfully bring down high flying aircraft, the V bomber force changed to low-level attack methods.

When an aircraft's lift is less than what is required for it to continue flying and stalls, ideally the nose should drop, which allows the aircraft to regain flying speed.

When controllers are responsible for separating some or all aircraft, such airspace is called " controlled airspace " in contrast to " uncontrolled airspace " where aircraft may fly without the use of the air traffic control system.

When carburetors are used in aircraft with piston engines, special designs and features are needed to prevent fuel starvation during inverted flight.

When Congolese aircraft bombed the West Nile villages of Paidha and Goli on February 13, 1965, President Obote again increased military recruitment and doubled the army's size to more than 4, 500.

When they reached Super Six Four, Gordon and Shughart extracted the pilot, Chief Warrant Officer Mike Durant and the other crew members from the aircraft, and established defensive positions around the crash site.

When they reached Super Six Four, they extracted Durant and the crew members from the crash and defended the aircraft.

When the leading edge of a sail is oriented into the wind, the correct curvature helps maximise lift while minimising turbulence and drag, much like the carefully designed curves of aircraft wings.

When the aircraft was at rest, the ailerons hung vertically down.

When landing, ground effect can give the pilot the feeling that the aircraft is " floating ".

When an aircraft is flying at an altitude that is approximately at or below the same distance as the aircraft's wingspan or helicopter's rotor diameter, there is, depending on airfoil and aircraft design, an often noticeable ground effect.

When several minutes had passed and Curt hadn't emerged from the livery stable, Brenner reentered the hotel and faced Summers across the counter.

When they had licked the last of the wieners' taste from their fingers, they settled back, and Cappy offered Ernie a cigarette.

When, in 1832, the South Carolina nullifiers adopted the principle of state interposition which Madison had advanced in his old Virginia Resolve, they elicited no encouragement from that senior statesman.

When he discovered they had received from the Company's Court of Directors no permission to live in India, coupled with the fact that they were Americans who had been sent to Asia to convert `` the heathen '', he became more belligerent than ever.

When Thompson and her daughter began a correspondence which included fervent verses from Pantasaph, Mrs. King felt a proper Victorian alarm.

When he came home from his office at the end of the afternoon, Breasted never knew what gathering he should expect to find, but there almost always was one.

When Blackman emerged from the bedroom, everyone was gone except the tolerant Lord Thomson, who stayed and chatted with him for half an hour, and then Blackman lay awake most of that night, despairing of what he must expect on the Continent.

There is, of course, nothing new about dystopias, for they belong to a literary tradition which, including also the closely related satiric utopias, stretches from at least as far back as the eighteenth century and Swift's Gulliver's Travels to the twentieth century and Zamiatin's We, Capek's War With The Newts, Huxley's Brave New World, E. M. Forster's `` The Machine Stops '', C. S. Lewis's That Hideous Strength, and Orwell's Nineteen Eighty-Four, and which in science fiction is represented before the present deluge as early as Wells's trilogy, The Time Machine, `` A Story Of The Days To Come '', and When The Sleeper Wakes, and as recently as Jack Williamson's `` With Folded Hands '' ( 1947 ), the classic story of men replaced by their own robots.

Sir -- When the colonies decided upon freedom from England, we insisted, through the Declaration of Independence, that the nations of the world recognize us as a separate political entity.

When East Germans fled to the West by the thousands, paeans of joy rose from the throats of Western publicists.

When the parents emerged from the bedroom a few minutes later, the maid greeted them quietly.

When Kate hurried in alarm to tell him to put it out, she saw other dots of flames among the western Virginia hills from the few scattered fires of the faithful.

When the fate of the individual is visited on the group, then ( the warm sweet butter dripped from her raised trembling fork and she pushed her head forward belligerently ), ah, then the true bitterness of existence could be tasted.

Speaking from long years of experience, Mrs. Long advised the Juniors: `` When showing dogs ceases to be fun and excitement, stop!!

When more than two figures are separated by subtraction symbols the subtraction must be carried out from the left to right if the result is to be correct.

When changing from one color to another, whether working on right or wrong side, pick up the new strand from underneath dropped strand.

`` When working from one of my sketches I square it up and project its linear form freehand to the watercolor sheet with charcoal.

When did you last compare your present premium costs with the costs of insurance from other sources??

When the larvae hatch, they feed on the beebread, although they also receive extra honey meals from their mother.

When necessary, we should make it clear that countries which choose to derive marginal advantages from the cold war or to exploit their potential for disrupting the security of the world will not only lose our sympathy but also risk their own prospects for orderly development.

When an occurrence Af is isolated during text reading, a random memory address Af, the address of a cell in the X-region, is computed from the form of Af.

When this situation exists, the address Af will equal Af which was produced from Af.

When entries are being retrieved from this file, the table of dictionary usage indicates which entries to skip and which entries to store in the computer.

When the snobbery that alienates Pip from Joe finally gives way before the deeper and stronger force of love, the reunion is marked by an embarrassed handshake at which Pip exclaims: `` No, don't wipe it off -- for God's sake, give me your blackened hand ''!!