In the comics, however, the planes were always drawn as single-engined aircraft while the real XF-90 had two engines.

Although started later, the single-engined aircraft, the No. 2 Seaplane, flew first on 1 August 1914.

On 16 April 1943 a single-engined aircraft was heard approaching the airfield.

P-38s have been described as being harder to fly than single-engined aircraft, but this was because of inadequate training in the first few months of the war.

Both of these were single-engined aircraft and the Wackett was not an advanced design by any criterion.

At the time, adaptions of single-engined tail-dragger land-based aircraft typically had poor visibility when landing.

Three types of single-engined aircraft were produced before Mauboussin left the firm in 1932 in order to form his own company.

Brougham (aircraft), a single-engined aircraft of the 1920s and 1930s.

It was originally intended to be certified as a single-engined aircraft because the Williams turbofan had not been certified.

Pilots progressed from light, single-engined aircraft to more powerful and complicated aircraft in stages.