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If the wings are pointing up but the direction of travel is down the critical angle is exceeded and a high speed stall occurs.
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If and wings
In 1986, Prince Philip commented on Chinese eating habits at the World Wildlife Fund conference: " If it has four legs and is not a chair, if it has two wings and flies but is not an aeroplane, and if it swims and is not a submarine, the Cantonese will eat it.
If a bird, bat, and a winged insect were scored for the character, " presence of wings ", a homoplasy would be introduced into the dataset, and this would confound the analysis, possibly resulting in a false evolutionary scenario.
If the two pairs of wings are considered as interchangeable, homologous structures, this may be described as a parallel reduction in the number of wings, but otherwise the two changes are each divergent changes in one pair of wings.
If a climb beyond the abilities of the aircraft is attempted, increasing angle of attack in the wings may produce a stall.
Using words like those of Leander in the seventeenth of Ovid ’ s Epistles he said: ' If only I had the wings of a dove / to fly back to you at will / Many and many a time I would come '.
If it attempts to fly while its wings are wet, it has great difficulty getting off the water and takes off by flapping vigorously while " running " on the water.
If done too quickly, or because of poor aircraft design, the wings can be pointing up but momentum i. e. gravity, continues to make the aircraft go down.
If Deinonychus had feathered fingers and wings, the feathers would have limited the range of motion of the forelimbs to some degree.
If prey manages to escape the diving birds at first, they may give chase using their legs and wings for underwater swimming.
If overcome by the black horse or forgetfulness, the soul loses its wings and is pulled down to earth.
If discovered, however, they have another amazing trick: they drop into the water and swim under the surface to escape, then later use their clawed wings to climb back to the safety of the nest.
Eastern Airlines ' the wings of man ', became the first ' official ' airline of the Walt Disney World Resort, and sponsored an attraction in their ' Tomorrowland ' called: ' If You Had Wings '.
If the two wings of a bird are devotion and action, knowledge is its tail.
If the female is receptive to the male, she may give a call and assume a solicitous posture with her tail feathers cocked and her wings drooped.
If the prey is further away, the bird will flap its wings a few times during the dive to increase distance.
If threatened, it is described to have tried to get away on foot, but using its wings for assistance and to glide short distances, especially downhill.
If nonlethal mutations occur in this complex, it can cause the fly to have 2 sets of wings, instead of 1 pair of wings and 1 pair of halteres, which aid in balance in flight.
The game also has a small degree of locational damage detection: If the ship's wings clip against obstacles or the ground too much, they will break off, adversely affecting the craft's handling and the ability to upgrade weapons.
" If a dragon has scales, he is called kiao-lung ; if wings, ying-lung ( 應龍 ); if a horn, k ' iu-lung ( 虯龍 ); and if he has no horn, he is called ch ' i-lung ( 螭龍 )".
If this is not sufficient, the adults will physically combat the predator, battering with their powerful wings and chomping down with their large bills, and have managed to kill predators equal to their own weight in confrontations.
If wind is not piled up deep enough, it won't have the strength to bear up great wings.
If and are
If it were not for an old professor who made me read the classics I would have been stymied on what to do, and now I understand why they are classics ; ;
If I even hint at it do you think it will matter that you are his nephew -- and not even a blood nephew ''??
If the circumstances are faced frankly it is not reasonable to expect this to be true.
If his dancers are sometimes made to look as if they might be creatures from Mars, this is consistent with his intention of placing them in the orbit of another world, a world in which they are freed of their pedestrian identities.
If love reflects the nature of man, as Ortega Y Gasset believes, if the person in love betrays decisively what he is by his behavior in love, then the writers of the beat generation are creating a new literary genre.
If to be innocent is to be helpless, then I had been -- as are we all -- helpless at the start.
Defoe then commented, `` If they Could Draw that young Gentleman into Their Measures They would show themselves quickly, for they are not asham'd to Say They want only a head to Make a beginning ''.
If Jews are identified as a religious body in a controversy that comes before a national or international tribunal, it is obviously compatible with the goal of human dignity to protect freedom of worship.
If they are right, they will prevail of and by themselves.
Without preliminaries, Esther asked him, `` If you are a world citizen, will you take Garry Davis' place in his tent while he goes to the hospital ''??
If we are to believe the list of titles printed in Malraux's latest book, La Metamorphose Des Dieux, Vol. 1 ( ( 1957 ), he is still engaged in writing a large novel under his original title.
If the would-be joiner asks these questions he is not likely to be duped by extremists who are seeking to capitalize on the confusions and the patriotic apprehensions of Americans in a troubled time.
If we break the minister to our bit, we are buying back our own sins.
If the record buyer's tastes are somewhat eclectic or even the slightest bit esoteric, he will find them satisfied on educational records.
If Daddy's books are out of bounds his own picture books are not.
If it will simply delay the debates until the qualifications are closed next spring, and then carry all the candidates on a tour of debates, it can provide a service to the state.
If they are to be commended for foresight in their planning, what then is the judgment of a town council that compounds this problem during the planning stage??
If the Communists are sincere in wanting a united, neutral and disarmed Germany, it might well be advantageous for the German people in this nuclear age.
If only this could be done more often -- with such heartening results -- many of the earth's `` big problems '' would shrink to the insignificances they really are.
If any are left, presently, we may expect to see signs specifically prohibiting the feeding of them too.
If the raw population figures are crucially relevant, then it is idle to think of liberation, as idle as to suppose that Poland might liberate Russia.
If it is not enough that all of our internationalist One Worlders are advocating that we join this market, I refer you to an article in the New York Times' magazine section ( Nov. 12, 1961 ), by Mr. Eric Johnston, entitled `` We Must Join The Common Market ''.
If the UN troops are not mercenaries then the Hessians were not mercenaries either.
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