RB-47s had a fairly low operational ceiling of 40,000 feet and relied on speed, as opposed to altitude, to evade interception.

"Now this is a very hazardous mission, bloody dangerous in fact, because as you can see it will take you very close to your operational ceiling."

With 50 g/sec the aircraft's operational ceiling could be extended from 8,400 to 9,800 metres.

Flame-damper equipment also caused serious speed reductions; 7 percent in level flight and 9 percent when at operational ceiling.

It was the largest flying boat of its time, but was severely underpowered and was limited by a very low operational ceiling.

The altimeter of the jet stopped at 13,740 feet, comfortably below a Stinger missile's operational ceiling.

This led fighter prototypes emphasizing acceleration and operational ceiling, with a sacrifice on the loiter time, essentially limiting them to point defense role.

I put it at close on sixty thousand feet, the Striker's operational ceiling.

As a result performance falls away and the operational ceiling is limited.

As a result, the Lincoln had a higher operational ceiling and longer range than the Lancaster.