Rotary vane system.....can almost smell the crew galley. Derek I really appreciate seeing these pictures of the Mahout I still to this day have a photo of her ,bought in Cal ,and only recently reframed
The internal mysteries of the Heli-Shaw pump were a favourite topic for the B.O.T. examiner for orals in the sixties, at least they were in Liverpool.
I was fortunate in that I used to have a pint now and again with a Hasties service engineer. Once saw him strip down one of these pumps - took him all of 15 minutes. Funny how things become much clearer over a pint rather than in a classroom.
I think they had a Heli-Shaw pump in Riversdale Tech for the phase 3 app's and if I'm not mistaken some of the B.O.T. examiners lectured there. The names McBurnie and Saltress come to mind,,but I may be wrong. Procedure for blowing a gauge glass....we used to chant that one .
Geoprge Saltreese was a lectuer I had for EKs at Riversdale . Dont think he was a BOT examiner ( Hope Not ) He was the biggest Bullsh--er we ever had lecture us )
We would take the Piss ; just ask him about anything and for sure he had invented it !!! I think the Hele Shaw pump was an example .
Derek, you are absolutely right about George Saltrese. As I recall his party piece was to draw a diagram on the blackboard with one hand while writing out the accompanying text with his other hand at the same time. He would periodically look around to see if anyone had noticed how clever he was. Of course, everybody completely ignored him and it really pissed him off.
OK maybe McBurnie was the B.O.T. bod. As you so rightly say Georgey was a character who would spend serious time with his students explaining how to protect yourself if attacked by a mad man with a knife and then check the gauge glass proceedure