John Heddles
@john-heddles
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Joined: May 14, 2016
Last seen: Jan 21, 2026
Topics: 2 / Replies: 951
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Rounding

As before, the mantra is - (a) if the examiner indicates he wants something specific in the question, do it (b) otherwise, round conservatively,...

5 years ago
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Air Law summary sheet

Suggest you include CAO 100.7 in the list. While not directly examinable, it gives you stuff which isn't anywhere else. The definition of "empty w...

5 years ago
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Safe endurance calculations

OK, the discussion has gone right off the rails, so let's start again, shall we ? In your first post, you state a concern that the VR factor has be...

5 years ago
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Safe endurance calculations

[color=blue][i][b]The second half of your reply confuses me despite reading it carefully 4 times.[/b][/i][/color] I'm not quite sure that I follow ...

5 years ago
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Safe endurance calculations

[color=blue][i][b]SE = (Total fuel - Fixed reserve - Startup/Taxi - Holding) / 1.1 / Fuel Flow[/b][/i][/color] You might like to note that you will...

5 years ago
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Pressure height

Equations are fine providing they are used correctly and appropriately and with due consideration of any inherent limitations. Unfortunately, my ob...

5 years ago
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Pressure height

Hence the general equation on p190. If a general equation doesn't work for all examples then it would be flawed and of little practical use. What...

5 years ago
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Pressure height

[color=blue][i][b]This algorithm has the QNH and the ISA back to front.[/b][/i][/color] Not quite - the equation in the text is talking directly ab...

5 years ago
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Weight and Balance

Some comments, if I may. In case others are wondering what the previous posts are talking about, Bob's explanation is on the money. It is possibl...

5 years ago
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Static Pressure

Although the detail is a little more complex, as the angle of attack increases the overall static pressure over the upper surface decreases while that...

5 years ago
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PPL Worksheets

Don't be too hard on yourself - we all make mistakes. What the pilot needs is to see the mistake, acknowledge it, and fix it without the need for som...

5 years ago
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PPL Worksheets

Perhaps, first, you might recheck your sums ?

5 years ago
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PPL Worksheets

[color=blue][i][b]I thought that we weren't supposed to round until the final answer?[/b][/i][/color] As a general rule approach to things, that's ...

5 years ago
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Hard P-Chart questions

[color=blue][i][b]I have no idea how[/b][/i][/color] We would need to see specific questions and your specific working to offer useful comments. ...

5 years ago
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Max cargo to be loaded

Finger trouble with the PC? My guess is that the item is from setting up the previous answer and it was just missed. It is irrelevant so wasn't...

5 years ago
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