C N Keys (41 results)

Paperback. Condition: Good. Connecting readers with great books since 1972! Used textbooks may not include companion materials such as access codes, etc. May have some wear or writing/highlighting. We ship orders daily and Customer Service is our top priority.

Condition: Very Good. Very Good Condition. Has some wear. Five star seller - Buy with confidence.

paperback. Condition: Very Good. Condition Notes: Clean, unmarked copy with some edge wear. Good binding. Dust jacket included if issued with one. We ship in recyclable American-made mailers. 100% money-back guarantee on all orders.

Paperback. Condition: Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority.

Paperback. Condition: Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority.

Soft cover. Condition: Very Good+. No Jacket. Light crease to spine.

Condition: New.

Condition: As New. Unread book in perfect condition.

Soft cover. Condition: As New. BK: as new minus slight shelf wear and price sticker fep.

paperback. Condition: Very Good. Condition Notes: Clean, unmarked copy with some edge wear. Good binding. Dust jacket included if issued with one. We ship in recyclable American-made mailers. 100% money-back guarantee on all orders.

Paperback. Condition: VG+. Paperback in Very Good+ condition. . 8vo 8" - 9" tall. 236 pages. Volume 1: Basic Theories of Rotor Aerodynamics (With Application to Helicopters) by W. Z. Stepniewski. Volume 2: Performance Prediction of Helicopters by C. N. Keys edited by W. Z. Stepniewski. . * Quick Shipping * All Books Mailed in Boxes * Free Tracking Provided *.…

Condition: New.

Condition: New.

Condition: As New. Unread book in perfect condition.

Condition: As New. Unread book in perfect condition.

paperback. Condition: Acceptable.

Paperback. Condition: Good. No jacket. Dover Publications, 1984. Paperback, 8vo, xiii,365,viii,236pp, illust. Covers a little creased and worn. A fair copy. 0486646475/0.9us . (Please note that our condition gradings are stricter than those of Abebooks and many other sellers. There may therefore be a discrepancy between this description and its listed condition grading).…

Condition: New.

Condition: As New. Unread book in perfect condition.

Condition: New.

Condition: As New. Unread book in perfect condition.

Condition: New.

Condition: As New. Unread book in perfect condition.

Condition: As New. Unread book in perfect condition.

Originalbroschur. 25cm. Condition: Sehr gut. XIII,365; VIII,236 pages. SEHR gutes Exemplar der ERSTAUSGABE. We offer a lot of books on PHYSICS and MATHEMATICS on stock in EXCELLENT shape). In EXCELLENT shape. Am unteren Rand der vorletzten INDEX-Seite winziger privater Vorbesitzerstempel. - Rotary-Wing Aerodynamics, a clear, concise introduction, highly recommended by U.S. Army experts, that provides students of helicopter and aeronautical engineering with an understanding of the aerodynamic phenomena of the rotor. In addition, it furnishes the tools for quantitative evaluation of both rotor performance and the helicopter as a whole. Now both volumes of the original have been reprinted together in this inexpensive Dover edition.In Volume I: "Basic Theories of Rotor Aerodynamics," the concept of rotary-wing aircraft in general is defined, followed by comparison of the energy effectiveness of helicopters with that of other static-thrust generators in hover, as well as with various air and ground vehicles in forward translation. Volume II: "Performance Prediction of Helicopters" offers practical application of the rotary-wing aerodynamic theories discussed in Volume I, and contains complete and detailed performance calculations for conventional single-rotor, winged, and tandem-rotor helicopters.Graduate students with some background in general aerodynamics, or those engaged in other fields of aeronautical or nonaeronautical engineering, will find this an essential and thoroughly practical reference text on basic rotor dynamics. While the material deals primarily with the conventional helicopter and its typical regimes of flight, Rotary-Wing Aerodynamics also provides a comprehensive insight into other fields of rotary-wing aircraft analysis as well. Aufgrund der von der Europäischen Union erlassenen Handels-Erschwernisse (die neue europäische Verpackungsverordnung mit extremen Gebühren für Händler) kann in folgende Länder KEIN VERSAND erfolgen: Bulgarien, Dänemark, Estland, Finnland, Griechenland, Irland, Kroatien, Lettland, Litauen, Luxemburg, Malta, Polen, Portugal, Rumänien, Schweden, Slowakei, Slowenien, Ungarn, Zypern. Falls Sie eine Rechnungs- und Lieferadresse in DEUTSCHLAND ermöglichen, kann an diese deutsche Adresse OHNE PROBLEME geliefert werden. Sprache: Englisch Gewicht in Gramm: 1100. …

Condition: New.

paperback. Condition: New. In shrink wrap. Looks like an interesting title.

Condition: As New. Unread book in perfect condition.

Condition: New.

Dover Publications, New York 1981. xiii, 365, viii, 236 pp. Paperback. Owner signature. Good condition.