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Forum: Tech Log

6th Oct 2015, 14:42

Replies: 23

Gas Turbine Engines

Views: 8,217

Posted By barit1

I've always heard electronic speed management...

I've always heard electronic speed management referred to as "electronic governing", working off speed sensors ('speed probes') which are merely frequency sensing devices. The logic is all within the...

Forum: Tech Log

4th Oct 2015, 02:26

Replies: 23

Gas Turbine Engines

Views: 8,217

Posted By barit1

tdracer, what a sweetheart! :O :ooh: But...

tdracer, what a sweetheart! :O :ooh:

But seriously, I'm quite amazed at the progress of reliability statistics in electronics.

45 years ago, my boss was an ex-field rep on REALLY early,...

Forum: Tech Log

2nd Oct 2015, 12:02

Replies: 23

Gas Turbine Engines

Views: 8,217

Posted By barit1

First of all, tdracer is correct about a...

First of all, tdracer is correct about a hydromechanical "steam-engine" governor in the fuel path. I had overlooked that point in my 29th Sept. post. Thank you!

But the purpose of this device on a...

Forum: Tech Log

29th Sep 2015, 18:37

Replies: 23

Gas Turbine Engines

Views: 8,217

Posted By barit1

Modern engines do indeed have governors, but they...

Modern engines do indeed have governors, but they are in the electronics - not the steam-engine style flyweight type governor. First one I worked on was the T58-10, in 1968. Not only an analog...

Forum: Tech Log

11th Sep 2015, 21:49

Replies: 23

Gas Turbine Engines

Views: 8,217

Posted By barit1

A word or two about fuel metering on turbine...

A word or two about fuel metering on turbine engines. They are generally controlled by a governor, so as inlet pressure or temperature varies, the governor will trim fuel up or down to keep RPM where...

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