Check it out at Boeing.com. Last week, Boeing announced it had completed a series of critical Power On tests. First flight, which has already wracked up delays of 15 months, is now scheduled for the fourth quarter.
The choice between helical and spur gears in gearboxes may seem straightforward. But with planetary gearboxes, however, the choice between helical and spur gears requires some additional thought. Here’s what you need to know to make the right choice.
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