John Heddles
@john-heddles
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Joined: May 14, 2016
Last seen: Jan 20, 2026
Topics: 2 / Replies: 951
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exceeding factors on p charts

[color=blue]"if more than a 20kt headwind is blowing the takeoff may proceed but only 20 knots can be used to establish mtow" So if I'm given a 25 kn...

3 years ago
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Performance exam help

(a) I'll leave Bob/Stuart to relate the standard tale so that I don't confuse the issues with practical thoughts. (b) rounding - perhaps not all t...

3 years ago
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Exam Prep 1

Various transponders have different capabilities. For civil use all give ATC an enhanced radar return which makes it easier for the air trafficker...

3 years ago
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IREX Revision Exercise 2.1 Q5

Keep in mind that those reading your commentary won't necessarily have a copy of the particular question or whatever. Help folks to help you by ...

3 years ago
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Confusing Question in the Text Book

ADF work can be quite confusing until you get on top of it. Keep in mind that successful ADF flying is all about continuous orientation. Where a...

3 years ago
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Obstacle free gradients in ERSA

Keep in mind that the airport authority will commission resurveys at regular intervals. The surveyor generally does the usual x,y,z point survey of ...

3 years ago
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Performance

You might post a scan of the question so we have the story. Answer can be sorted out with that information.

3 years ago
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Visual illusions on approach: unusually clear air and bright lights

Run some searches on the net. There are plenty of articles on illusion problems. Grab some HF textbooks on flying hazards and read up there as wel...

3 years ago
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Replies: 1
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W/V in a PNR/ETP calc

When you resolve the W/V to obtain the wind components, you do the appropriate vector resolved components. However, if you then just add a wind com...

3 years ago
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Confusion with gliding range.

[color=blue]I honestly thought a lighter aircraft would glide further compared to heavy aircraft[/color] This is just one of those strange things w...

3 years ago
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Potential Mistake Practice Exam (CFPH_009)

Several distractors in the question intended to confuse you a bit. However, it is a dead simple question providing you understand what you are doing...

3 years ago
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Potential Mistake Practice Exam (CFPH_009)

Suggest you include the answer with your question so we know what the target might be ?

3 years ago
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W/V in a PNR/ETP calc

[color=blue]the question purely listed 'W/V ###/##' with no reference to either unit of measurement.[/color] The AIP is your friend and, if you do...

3 years ago
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ROC and ROD, need help wrapping my head around

The operational problem may be steps or any other consideration which requires you to make one or more height/distance points along track. Presumin...

3 years ago
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