1977 Trident Scholar Report Single Bladed Torqueless Helicopter Design USNA

by Martinus Maria Klijn

£36 · Offered by eBay

Up for sale is an uncommon 1977 technical document detailing the engineering, math, and prototype designs for a single-bladed, torqueless, backpack-style experimental helicopter ("Klijn'y Copter" / N774319). Includes detailed calculations, mathematical formulas, aerodynamic efficiency charts, diagram illustrations of flight mechanics, and black-and-white photos of prototype components (rotors, propellers, mounts). Details & Condition: Year: May 23, 1977 Dimensions: Approx. 10.5" x 8" Condition: Fair vintage condition with visible age wear, light staining/foxing on the covers, and minor edge wear. The staples show minor oxidation/rust on the back cover. All internal pages are clean, fully legible, and intact with tight binding staples. Please review all photos carefully for a full visual assessment of the item's condition. Feel free to message with any questions! The 1977 Trident Scholar Report Single Bladed Torqueless Helicopter Design USNA is a book that delves into the unique design of a helicopter without a tail rotor. The report focuses on the practicality and efficiency of this single-bladed design, making it a valuable resource for those interested in unconventional aircraft technology. Published in 1977, this book provides insights into the innovative engineering behind this particular helicopter design, making it a fascinating read for aviation enthusiasts and experts alike.

• Year: 1977
• Condition: Fair

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