<p>Diagram of a <a href="https://en.wikipedia.org/wiki/Combined_gas_or_gas" class="extiw" title="en:Combined gas or gas">COGOG</a> propulsion system.
Note that a real COGOG installation would use a different clutch and gearbox arrangement.
(Own work)
</p><p><a href="https://en.wikipedia.org/wiki/Combined_gas_or_gas" class="extiw" title="en:Combined gas or gas">en:Combined gas or gas</a>
</p>
<a href="https://pl.wikipedia.org/wiki/COGOG" class="extiw" title="pl:COGOG">pl:COGOG</a>
No machine-readable author provided. <a href="//commons.wikimedia.org/wiki/User:Alureiter~commonswiki" title="User:Alureiter~commonswiki">Alureiter~commonswiki</a> assumed (based on copyright claims).
3 December 2005 (original upload date)
No machine-readable source provided. Own work assumed (based on copyright claims).