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The complete book of helicopters: D. N. Ahnstrom: 圖書
Product Details
Vintage hardcover of 'The Complete Book of Helicopters' by D. N. Ahnstrom, published by The World Publishing Company. A fascinating, illustrated historical look at early rotor-wing aviation, featuring detailed accounts and photography of various models like the Piasecki Army Mule. This classic aviation book is a great addition for collectors of mid-century technical history and vintage flight literature. Pre-owned condition; shows significant wear, including staining on the cover and spine, as well as light water damage on some interior pages. Sold as-is. Bin: H4
Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.
Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.
Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.
Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.




