Sir George Cayley the Inventor of the Aeroplane by Pritchard Pritchard J (4 results)

First edition Hardcover super octavo (VG+) lacks d/w ; all our specials have minimal description to keep listing them viable. They are at least reading copies, complete and in reasonable condition, but usually secondhand; frequently they are superior examples.Ordering more than one book will reduce your overall postage cost.

Hardcover. Condition: Good. 1961. Tight, firm copy. Unclipped D/J has wear to extremities with a few tears. Boards are in very good condition being clean with bright gilt titles to spine. Name & address on ffep. The lightly tanned (heavier to inside covers with spots of foxing) pages are in very good condition being clean & annotation/crease free. Nice solid copy of this scarce, sought after book. If you have any queries please contact us. We endeavour to send orders as quickly as possible & in most cases are sent by first available post 6 days a week. (1,3-630).

Hardcover. Condition: Good. Dust Jacket Condition: Good. Presumed First Edition, First printing. xxii, 277, [1] pages. Frontis illustration. List of Plates. List of Text Figures. Foreword by Peter Masefield. Gramercy. Chronology. Appendix I through IV, References. Index. Sir George Cayley, 6th Baronet (1773 - 1857) was an English engineer, inventor, and aviator. Many consider him to be the first person to understand the underlying principles and forces of flight. In 1799, he set forth the concept of the modern aeroplane as a fixed-wing flying machine with separate systems for lift, propulsion, and control. He was a pioneer of aeronautical engineering and is sometimes referred to as "the father of aviation." He identified the four forces which act on a heavier-than-air flying vehicle: weight, lift, drag and thrust. He constructed the first flying model aeroplane and also diagrammed the elements of vertical flight. He designed the first glider reliably reported to carry a human aloft. He predicted that sustained flight would not occur until a lightweight engine was developed to provide adequate thrust and lift. J. Laurence Pritchard was Secretary of the Royal Aeronautical Society for many years and was regarded as the greatest authority on the life and accomplishments of Sir George Cayley. In 1919, J. Laurence Pritchard became Editor of the Journal of the Royal Aeronautical Society while Lt. Col. W Lockwood Marsh was Secretary. At Cambridge Pritchard took a degree in mathematics and then went to Fleet Street. During the war he was transferred from the Army into the Royal Naval Air Service to work on calculations for aircraft structures. With Professor A J Sutton Pippard, with whom he had worked at the Admiralty, he wrote Aeroplane Structures. In 1925, with the membership at little more than 600, the Society could no longer afford to pay a Secretary. Lockwood Marsh resigned. Pritchard, Editor of the Journal with a token salary only and earning his living as a freelance journalist in Fleet Street, became Honorary Secretary and then, as the Society's finances improved, Secretary from 1926.

Hardcover. Condition: Very Good. 1st Edition. London: Max Parrish, 1961. First edition. Large octavo in pictorial dust wrapper (a few nibbles). Clean and tight.