In former hot air engines it was impossible to prevent the valves from leaking ; this difficulty seems to be overcome in this one, as it has been running for several monthi without requiring any ...

If hot-air engines and inflammable gas engines fail as yet to furnish power comparable to .hat which steam affords, without a very disproportionate increase of bulk, and for high powers fail to ...

The Federal Aviation Administration has ordered airlines to address a problem affecting Rolls-Royce-powered Boeing 757s that ...

The durability kit was designed to increase time on wing, especially in hot and harsh environments ... “Airlines like Air India and IndiGo rely on CFM LEAP-1A engines to power most of their ...