Turboprop and newcomen engine: what they have in common

1. Step 1. Turboprop — is part of — Cargo aircraft. Turboprop engines for short runways.
2. Step 2. Cargo aircraft — has part — Landing gear. Landing gear for dirt airstrips.
3. Step 3. Landing gear — has part — Shock absorber. Shock struts.
4. Step 4. Shock absorber — has part — Piston. Inside, a piston moves in oil.
5. Step 5. Piston — is part of — Newcomen engine. Atmospheric pressure moves the piston.

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