John Heddles
@john-heddles
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Joined: May 14, 2016
Last seen: Jun 12, 2026
Topics: 2 / Replies: 963
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Factoring TODR

Problem is do you know what the basis of the chart you might be using is ? For the old DCA P-charts, the CAO 101.22 factors were built in. If ...

8 years ago
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CPL performance

Notwithstanding a literal reading of the CAO, the aim is to be conservative in determining the LW limited takeoff weight or local landing weight when ...

8 years ago
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Struggling getting my head around a question.

With the graphic, I can run a calculation. Reading via a drawing package (which allows for very accurate plotting), the answer looks to be 20.6nm f...

8 years ago
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Struggling getting my head around a question.

Dan, I don't have a copy of Bob's book so I don't know just what it might say. The only concern I might have with your first post is that it ...

8 years ago
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Struggling getting my head around a question.

[color=blue][i][b]how do i extract pressure height out of the question with the information provided?...[/b][/i][/color] Clue - [i]Find the distan...

8 years ago
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Exam Prep Question

Thanks, Sam. I'll chase up an answer via CASA/Airservices. I guess that a gremlin has crept into the mix along the way and it will be a simple ...

8 years ago
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Exam Prep Question

That presents a very significant potential problem. Could you post a scan of the Jepp chart, please ? I will take the question back to CASA for r...

8 years ago
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Exam Prep Question

A subtle error on the part of the OP. Suggest he goes back to the Airservices webpage and [color=red][i][b]checks the chart date validity[/b][/i][/...

8 years ago
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About Turning forces

The discussion presumes that the elevator trim setting remains constant. As bank increases, the aircraft's lift vector inclines into the turn and t...

8 years ago
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total drag curve

A read through pp96-104 in Hurt's text might be a good place to start.

8 years ago
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TAKE OFF AND LANDING WEIGHT AND DISTANCES CHARTS - CAO 20.7.4

I concur with Bob's thoughts. The suggestion that 20.7.4.4.1.a should be interpreted as a requirement [b]not[/b] to account for slope if slope i...

8 years ago
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TAKE OFF AND LANDING WEIGHT AND DISTANCES CHARTS - CAO 20.7.4

And well might you be a little confused. First, it is important to keep in mind that the old DCA format P-Charts (eg Echo) used for the exam predat...

8 years ago
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About Flap extension reduce the stalling speed

A silly question - the answer to which revolves around logical semantics rather than anything of direct interest to the pilot. Often, this sort of ...

8 years ago
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8 years ago
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Density altitude

Possibly, you might be trying to overthink this a tad. Much of the problem is that pilots generally get a fairly superficial introduction to ISA an...

8 years ago
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