[jhb] Re: UK Event for Wednesday 22 August 2007 1830UTC
- From: "Fred Stopforth" <fredstopforth@xxxxxxxxxxxxxx>
- To: <jhb@xxxxxxxxxxxxx>
- Date: Fri, 24 Aug 2007 09:46:25 +0100
MessageM. Did a quick read yesterday of the 'Lean Tut.' and a quick try out --
managed to get to 12,300' -- climb rate finally dropped to
30fpm/1876rpm/73KIAS/10.1GPH -- on rerun LOWS to LOWG and the weather was
kinder.Will be trying to improve on that to get the penny to drop.Got to get
the relationship [ of how I read it ,how I understand it and how I do it ]
right. Fred
----- Original Message -----
From: Mike Brook
To: jhb@xxxxxxxxxxxxx
Sent: Thursday, August 23, 2007 11:10 AM
Subject: [jhb] Re: UK Event for Wednesday 22 August 2007 1830UTC
Rory wrote an excellent tutorial some years ago on the techniques of flying
GA aircraft in the mountains. It is still valid today and I can highly
recommend it (it enabled me to get my lowly PA28 up to 10,000 feet with no
bother!). See:
http://www.shetland.flyer.co.uk/multiplayer/mountain.html
M.
----------------------------------------------------------------------------
From: jhb-bounce@xxxxxxxxxxxxx [mailto:jhb-bounce@xxxxxxxxxxxxx] On Behalf
Of Paul Reynolds
Sent: Thursday, August 23, 2007 9:07 AM
To: jhb@xxxxxxxxxxxxx
Subject: [jhb] Re: UK Event for Wednesday 22 August 2007 1830UTC
Using the Exhaust Gas Temperature (EGT) method, lean and watch EGT it
should start to rise. Your ideal mix is where it peaks so when it starts to
fall again increase the mix a tad and your there.
Paul
-----Original Message-----
From: jhb-bounce@xxxxxxxxxxxxx [mailto:jhb-bounce@xxxxxxxxxxxxx] On
Behalf Of FrankTurley@xxxxxxx
Sent: 23 August 2007 08:51
To: jhb@xxxxxxxxxxxxx
Subject: [jhb] Re: UK Event for Wednesday 22 August 2007 1830UTC
In a message dated 23/08/2007 08:12:57 GMT Daylight Time,
fredstopforth@xxxxxxxxxxxxxx writes:
FT,Aye it was to do with mixture.I'm not knowledgeable on the subject
of how to lean correctly but I did have a fumble about it andcould only gain 2'
extra hieght.Something to learn. Fred
Fred,
I'm sure I'm not the expert on this, but as I understand it, the higher
you get, the thinner the air gets. The engine sucks in a mixture of air and
fuel, so as you get higher it needs less fuel as there is less air about to
keep the mix in the correct proportions. I have heard of 2 ways to do this, one
is to monitor the exhaust temperature, and the other is to listen to the engine
as you reduce the mix, and when it starts to cough then give it a touch more to
keep it smooth.
Of course, when you descend you have to reverse the process.
Frank T.
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