Externet wrote in news:a78f196e-92e0-46d3-9c4d-
:

Hi. Could not find a proper group to ask, sorry :
The old Boeing 707 and perhaps others had a tiny 3000+ psi air
compressor on board driven by a hydraulic motor to start engines with
NO ground equipment assist.
Which current aircraft have a similar compressed air starting system
on board ?
Thanks.

No civil AC I know of, except some russian light planes.

Bertie