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10th Jul 2017, 12:38
Replies: 76
Views: 11,689
Posted By dirkdj

Here is another excellent starting...

Here is another excellent starting page:https://www.avweb.com/news/pelican/182179-1.html

Pay attention to the graph that is near the bottom of this page. There is a lot of information there how...
10th Jul 2017, 09:19
Replies: 76
Views: 11,689
Posted By dirkdj

"The fuel that's not burned helps cool the engine...

"The fuel that's not burned helps cool the engine through evaporation." Not very convincing explanation:

The reason a lean or very rich mixture cools the CHT/EGT is that they slow down the flame...
9th Jul 2017, 05:46
Replies: 76
Views: 11,689
Posted By dirkdj

If a carburettor engine runs rough when leaned,...

If a carburettor engine runs rough when leaned, it means all cylinders are not developing same power due to uneven fuel/air distribution. You may help this by applying a little carb heat. Also...
8th Jul 2017, 05:51
Replies: 76
Views: 11,689
Posted By dirkdj

Yes,yes,yes.:ok:

Yes,yes,yes.:ok:
6th Jul 2017, 10:47
Replies: 76
Views: 11,689
Posted By dirkdj

Do a search for this article: Lean of Peak:...

Do a search for this article: Lean of Peak: Ignorance Returns (Or Maybe It Never Left)
Well written, with links.
6th Jul 2017, 03:29
Replies: 76
Views: 11,689
Posted By dirkdj

You can lean at any altitude. The absolute EGT...

You can lean at any altitude. The absolute EGT number has no value except to determine peak, at what point it starts to fall. The hottest EGT is NOT the hottest exhaust valve temp. Think of EGT as a...
3rd Jul 2017, 13:36
Replies: 76
Views: 11,689
Posted By dirkdj

A PPL is a license to learn, certainly on engine...

A PPL is a license to learn, certainly on engine management.
Keep in mind that the POH is written by the engineers first, then modified to suit the marketing department, then the lawyers get their...
29th Jun 2017, 08:14
Replies: 76
Views: 11,689
Posted By dirkdj

For those that haven't found it yet, here is the...

For those that haven't found it yet, here is the John Deakin article about leaning. It was written nearly twenty years ago and remains valid today. Expect to spend several hours to absorb what is in...
28th Jun 2017, 15:36
Replies: 76
Views: 11,689
Posted By dirkdj

Chuck, I would recommend 65% as the limit...

Chuck,

I would recommend 65% as the limit below which you cannot damage the engine with the mixture knob. I fly both a NA Bonanza and a TN Bonanza, always LOP except for takeoff and climb.
28th Jun 2017, 14:27
Replies: 76
Views: 11,689
Posted By dirkdj

In flight, at 65% power or below, you cannot harm...

In flight, at 65% power or below, you cannot harm the engine with the mixture control. If you have an engine monitor, learn to use it.
If you have a carburetted engine, use of a bit of carb heat...
28th Jun 2017, 09:45
Replies: 76
Views: 11,689
Posted By dirkdj

Last weekend, we just finished the APS seminar in...

Last weekend, we just finished the APS seminar in Kortrijk.
John Deakin was one of the teachers. You can search for his columns on engine management under 'Pelican's Perch'. There is very good...
Showing results 1 to 11 of 11


 
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