By Norman S. Currey
This is often the one publication to be had this day that covers army and advertisement plane touchdown equipment layout. it's a complete textual content that would lead scholars and engineers from the preliminary thoughts of touchdown equipment layout via ultimate element layout. The publication offers an important hyperlink in touchdown equipment layout know-how from ancient practices to fashionable layout tendencies, and it considers the mandatory airfield interface with touchdown apparatus layout. The textual content is subsidized up through calculations, requisites, references, operating examples.
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Additional info for Aircraft Landing Gear Design: Principles and Practices (AIAA Education Series)
When the tires are fiat. USAF requirements stipulate, and BCAR recommends, that wheels shall be stopped from rotating during retraction or prevented from rotating in the retracted position. This prevents parts inside the wheel well from being damaged by the flailing of a damaged tire and prevents undesirable wheel-rotation noise from being transmitted to the crew and passengers. It may be accomplished by braking the wheels or by friction pads. FAR Part 25 does not require this, but it does require that a loose tire tread must not cause any damagemwhich may amount to the same thing!
The possibilities are limitless, depending on the ingenuity, imagination, and know-how of the designer. Lateral Location of Main Landing Gear The lateral location of the main landing gear affects the turnover angle and the ground clearances with movable surfaces such as ailerons and flaps, wing tips, engine nacelles, and, if used, propellers. 7 shows the method for calculating the turnover angle. The diagram shows a twin-wheel nose gear (which is different from that shown in various requirements documents where a single wheel is shown).
FOR DETERMINATION OF ANGLE B . ~1~.. FOR CARRIER-BASED / " - I " AIRPLANES & 63" F'C~ / ' LAND-BASED / _--~lk AIRPLANES. ~ o~ D MOST CRITICAL FOR T U R N O V E R ' ~ ,,-L _ \ Fig. S. S. Navy Specification SD-24J). REQUIREMENTS 49 Preliminary drawings sent to the customer shall include the following: construction and operating features; materials; weight; compression ratios; fluid levels at static, extended, and compressed positions; surface treatments; material strengths; and applicable specifications.