Actually Walter, I am not in a position to do
anything.
Yessee – I don’t have any of
the stuff you’re talkin’ about.
I have a lowly O-320 and that’s it.
But back in the GOD’s (that’s
GOOD OLD DAYS), when rEAL pilots flew Allison jet power or JT8D’s or CFM
56’s etc., TIT”S, apart from la femme fatale’s doing cockpit
visits, were what you saw going into the turbine, (as in Allisons) and EGT’S
were what you saw coming out of the turbine’s as in JT8D’S and CFM
56’S.
As for the rest of the stuff you mentioned,
I’ve got no idea what you’re talkin’ about.
See – we Aussies are bloody deep –
just ask Grayhawk.
Cheers
Dom
Dominic:
Do
this. Place a probe 3" from the exhaust flange, then place another one a
foot from the exhaust flange (same cylinder with no other exhaust stream
joining in). The one further away will read lower. Why? The
gas is expanding and cooling as it flows down the pipe. The TIT reading
is higher because the TIT is getting more pulses of exhaust gas per 720 cycle.
As a result it has less time to cool between hot pulses. It READS
higher. It is not actually hotter. You don't really think the gas
gets hotter the further it gets from the exhaust valve, do you?