Even so, engine vibrations continued to abuse the wooden propellers by breaking the tips or charring the holes around the attachment bolts. The aircraft also endured the abusive vibrations that relentlessly caused wires to snap or parts to loosen and fall off. By October 1928, only around 40 e...
Vintage airplane pattern. Biplane propellers seamless background. Retro Aircraft wallpaper and design elements. Aviation style. Fly propeller old icon isolated. Vector,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢
Via shafts and right angle drives, the engines powered two 16 ft 6 in (5.06 m), three-blade, wooden propellers at around .167 times engine speed. The variable-pitch propellers turned around 450 rpm at maximum power (2,700 engine rpm) and around 415 rpm at cruise power (2,500 engine ...
If there’s any sort of leather on board (oar leathers, protective edges on sail attachment points, the places where wooden spars rest against the mast, etc), tallow is the greatest thing for lubricant. It’s great for protection of things steel like handsaws. I also lubricate my oar...