cross scavenged engines
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Airbus aircraft all have jets, not piston engines.
The central part of the top of a piston, often raised in some engines.
all car engines are internal combustion most car engines are Reciprocating piston some mazdas use wankel rotary engines hybrids use reciprocating piston engines in combination with electric motors
piston engines have more torque than jet engines..
An aircraft propelled by jet engines rather than piston engines.
jet engines, turbojet engines, turbo-prop engines, four-stroke piston driven engines... Can you be more specific?
Diameter of the piston head.
All vehicles with piston engines.
Piston engines vary from little 1 cylinder engines that power a weed trimmer or leaf blower to HUGE 12-18 cylinder engines that power a large ship or a railroad train. There is no one answer to your question. A piston engine can weigh a few ounces to many tons.
Gasoline-fueled piston engines and turbojets.