yes
a small engine plane is a plane that is small
A Cessna single-engine.
the piper warrior
The SBD was a single engine plane. All WWII carrier aircraft were single engine.
in the single-seat, single-engine purpose built RyanmonoplaneSpirit of St. Louis
long enough to take off
The Spitfire is a single engine fighter, a little smaller than a P-51.
Red Single Engine Lock-head Vega Airplane
Most commonly on the front attached to the fuselage. However, there are many variations. On a "pusher" the engine is at the back of the fuselage. The engine can be mounted above the wing and fuselage on some seaplanes.
Orville and Wilbur Wright's Wright Flyer of 1903 only had one engine...The person who invented the all-metal airplane with the cantilever wing, which is the kind of plane people are building now, is Hugo Junkers.
A plane with floats is a "floatplane" or a "seaplane." A plane with skis is a "skiplane." Check it out: you need a special license to fly a seaplane! If you have a single-engine Piper and land it at airports, the minimum license is ASEL--airplane, single engine, land. You could also fly it with an AMEL--airplane, multiengine, land. But to fly a seaplane you need an ASES or AMES--airplane, single engine, sea or airplane, multiengine, sea.
A plane without an engine is a glider, also referred to as a sail plane.