A complete loss of power requires both engines to fail, as one engine can power both proprotors via interconnected drive shafts. Source: Internet
A gib head sunk keys hold the two shafts and sleeve together. in other words, this is the simplest type of the coupling. Source: Internet
All irons are 1-degree upright, have D4 swingweight, standard size Tour Velvet grips and True Temper Dynamic Gold X-100 shafts. Source: Internet
Although the use of offset crankpins, counterweights, and flying arms has reduced the problem to a minor second-order vibration in modern designs, all V6s can benefit from the addition of auxiliary balance shafts to make them completely smooth. Source: Internet
After the shafts were replaced (requiring two trips back to Dayton), Wilbur won a coin toss and made a three-second flight attempt on December 14, 1903, stalling after takeoff and causing minor damage to the Flyer. Source: Internet
As the disk rolled down the corridor, players would throw wooden shafts at it. Source: Internet