What are the Disadvantages of the reciprocating piston engine?

I am unsure what you are asking but:The cooling oil nozzle is arraigned so the underside of the piston is sprayed with oil to cool the piston crown.This is done on high stress engines as the pistons...

Cost, maintenance, consumables, emissions for starters - assuming internal combustion, dinosaur technologies with band aid improvements. No doubt the cheapest mass produced solution to date -...

Reciprocating engines are very big engines. Instead of a motor just spinning the propeller, electric arms would move up and down circling around the propeller line spinning it. These kind of engines...

A reciprocating engine could be a number of things, now referring to a mechanical car engine for instance is not reciprocating.

Rotaries have gotten better, but that's it. A piston engine is far superior. It has much more tuning available to it and makes more power and torque. Also they are more reliable and more durable,...