ISBN 10: 1236628500 / ISBN 13: 9781236628503
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Inhaltsangabe: This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 edition. Excerpt: ...records must always be received some little time--not infrequently in practice some hours--after the moment at which they were measured, whereas by this method, provided the ground is visible, the instantaneous values can be obtained and can be checked as often as desired. It should also be noted that A P and D P, in Fig. 25, will measure the ground speeds along each of these courses. Hence, once the wind point is found and the instrument set accordingly, figures can be given at once for the ground speed along any contemplated course and the probable duration of flight to cover any desired mileage over the ground. 58. Wind Gauge Bearing Plate (Wimperis).--The wind gauge bearing plate is an instrument to enable the drift angle to be measured by tail bearings, and it also enables the velocity and deviation of the wind to be obtained whilst in flight by the method just described. The general arrangement of the instrument is shown in the illustration in Fig. 26. It is capable of being fixed on the port or starboard side of the aircraft. A glass panel occupies the centre of the bearing plate and is marked with concentric circles corresponding to wind speeds by intervals of 10 m.p.h. Beneath the glass is the red wind point (A) mounted on the wind arrow (B), and capable of sliding so that the red spot may be set to any wind speed by means of the circles. The wind arrow (B) is carried by the wind ring (R) and may be turned by knobs (N) beneath, so that it points in any desired direction relative to the bearing plate. A drift bar (D) lies athwart the bearing plate; it comprises a central bar with speed and time scales, and a bevelled edge for drawing drift lines on the bearing plate glass; also drift wires at the sides, carrying timing-beads. The drift...

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Harry Egerton Wimperis
Verlag: RareBooksClub
ISBN 10: 1236628500 ISBN 13: 9781236628503
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Buchbeschreibung RareBooksClub. Paperback. Buchzustand: New. This item is printed on demand. Paperback. 30 pages. Dimensions: 9.2in. x 7.2in. x 0.2in.This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1920 edition. Excerpt: . . . records must always be received some little time--not infrequently in practice some hours--after the moment at which they were measured, whereas by this method, provided the ground is visible, the instantaneous values can be obtained and can be checked as often as desired. It should also be noted that A P and D P, in Fig. 25, will measure the ground speeds along each of these courses. Hence, once the wind point is found and the instrument set accordingly, figures can be given at once for the ground speed along any contemplated course and the probable duration of flight to cover any desired mileage over the ground. 58. Wind Gauge Bearing Plate (Wimperis). --The wind gauge bearing plate is an instrument to enable the drift angle to be measured by tail bearings, and it also enables the velocity and deviation of the wind to be obtained whilst in flight by the method just described. The general arrangement of the instrument is shown in the illustration in Fig. 26. It is capable of being fixed on the port or starboard side of the aircraft. A glass panel occupies the centre of the bearing plate and is marked with concentric circles corresponding to wind speeds by intervals of 10 m. p. h. Beneath the glass is the red wind point (A) mounted on the wind arrow (B), and capable of sliding so that the red spot may be set to any wind speed by means of the circles. The wind arrow (B) is carried by the wind ring (R) and may be turned by knobs (N) beneath, so that it points in any desired direction relative to the bearing plate. A drift bar (D) lies athwart the bearing plate; it comprises a central bar with speed and time scales, and a bevelled edge for drawing drift lines on the bearing plate glass; also drift wires at the sides, carrying timing-beads. The drift. . . This item ships from La Vergne,TN. Paperback. Buchnummer des Verkäufers 9781236628503

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Wimperis, Harry Egerton
Verlag: RareBooksClub.com
ISBN 10: 1236628500 ISBN 13: 9781236628503
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Buchbeschreibung RareBooksClub.com. Buchzustand: New. New. Book is new and unread but may have minor shelf wear. Buchnummer des Verkäufers Z1-S-004-01578

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