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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Fwd limit- splitting hairs

When it comes to interpreting the semantics of a question, we probably need to read the specific question(s) under consideration. The devil usually ...

4 years ago
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PPL 1 in 60 Question

[color=blue][i][b]In the [color=red]questions[/color] I've been doing using the formula hasn't been working[/b][/i][/color] You made reference to q...

4 years ago
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Exercise 5.13 help

The reason I keep pushing the mantra not to jump willy-nilly into equations and "canned" formulae is that that is the easiest way to make simple mista...

4 years ago
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Exercise 5.13 help

Perhaps recheck your ballast formula and all might magically become right ....

4 years ago
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PPL 1 in 60 Question

First, may I suggest steer clear of going straight to a formula to solve these sorts of questions. Far too easy to make a mistake and deny yourself ...

4 years ago
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What happened to the declared density altitude charts in the VFRG?

If you want the declared charts, our good friend, Bosi, put a link to them here

4 years ago
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Density height

You're getting a little ahead of yourself. (a) work out the pressure height. You can find yourself in strife if you work on the elevation when Q...

4 years ago
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What happened to the declared density altitude charts in the VFRG?

[color=blue][i][b]doesn't seem to contain the declared density altitude charts[/b][/i][/color] Appears they have been consigned to the waste bins o...

4 years ago
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Declared Density Charts?

[color=blue][i][b]I was curious what is being used now for operations at ALAs with[/color] [i][b][color=red]no elevation data available[/color][/b][/i...

4 years ago
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Declared Density Charts?

One needs to keep in mind that the declared charts date back to developmental air services which are now rather dated in concept. They were never te...

4 years ago
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Armidale WAC pdf link?

[color=blue][i][b]I don’t think a photo will be quite as accurate as what is required for the 1 in 60 exercises.[/b][/i][/color] Keep in mind that ...

4 years ago
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Convection VS adiabatic

[color=blue][b][i]as air sinks it compresses adiabatically, so it gets warmer,[/i][/b][/color] That's what we would expect to happen. [i][b][co...

4 years ago
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Convection VS adiabatic

Have a read of this link. Don't fuss too much over the equations - rather read the text and think about what it might mean. After you have done ...

4 years ago
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tODA/TODR

[i]Suggest you download, read, and keep for reference Part 139 MOS which has the general (certified) aerodrome stuff available. CAAP 92-1 provides in...

4 years ago
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Practice Exam Question - Take-off charts

Sorry, Stuart, I should have been more precise in my comment. My reference was to whoever originally generated the chart rather than its immediate l...

5 years ago
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