combat ceiling
service ceiling

This aircraft's top speed and service ceiling are claimed to be comparable to lower end jets.

Top speed was 180 miles per hour with a service ceiling of 20,000 feet.

Even in emergencies such as this, their service ceiling is capped at four kilometers.

The service ceiling at 7790 lb was 31,000 ft.

The service ceiling at 7740 lb was 30,100 ft.

However, the service ceilings are one major shortcoming for this plane.

It had a service ceiling of 20,000 feet and its range was 760 miles.

Townsend demonstrated how the B-29 could be flown to 40,000 feet, well above its intended service ceiling.

It has a service ceiling of 20 km and can stay in the air for continuous 36 hours.

The Spirits would never drop far below a 30,000-foot service ceiling.