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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Traffic Scanning

[i](a) appear stationary on the horizon[/i] Collision trajectory implies nil relative motion. However, appearing on the horizon is a sufficient...

9 years ago
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Lift & drag formulae

Certainly is the well-known octogenarian Harrier engineering test pilot. Google "John Farley test pilot" and you will have a few hours entertainmen...

9 years ago
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Lift & drag formulae

You would help your cause were you to show some initiative, methinks. However, for the benefit of others who might be interested, the following ...

9 years ago
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slip / skid. i m lost . page 103 RPL manual

You could start here, I guess, if you just want to look at the rate equations .. There are many net references (not to mention a raft of text boo...

9 years ago
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slip / skid. i m lost . page 103 RPL manual

Thanks for the scan. The book description of slip and skid is pretty conventional for pilot training. Notice that the pictures have a yaw strin...

9 years ago
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Turbulence landin

[i][b]During an approach to land, there is slight turbulence which causes the a/c to go below its min. approach speed and come too low. What should ha...

9 years ago
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Fire Resistance

Further to Bob's response, it is important to be aware of the following for aircraft furnishing matters (which I presume is the basis for your questio...

9 years ago
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slip / skid. i m lost . page 103 RPL manual

I don't have the manual so could you post a scan of the page, please ? That will help me understand what it is that you are trying to describe .. ri...

9 years ago
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Difference between CG Limits & CG Moment Envelope

[b]What does skewing and stretching the envelope mean ?[/b] [i][/i] If you plot the normal weight by moment (or IU) chart based on the usual OEM d...

9 years ago
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Difference between CG Limits & CG Moment Envelope

[b][i]… it has been pushed that I have to use the POH datum and there is no option to that. How can you use a different datum ?[/i][/b] Some observ...

9 years ago
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Difference between CG Limits & CG Moment Envelope

Ray, perhaps I might answer your questions in reverse order ? [i][b]Also, can you explain your abbreviations, please ?[/b][/i] My apologies .. I...

9 years ago
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Re: Difference between CG Limits & CG Moment Envelope

Perhaps I can offer some thoughts on this question and add a bit to Bob's reply. I am presuming that the charts referred to are the (a) gross ...

9 years ago
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Sideslip in Multi engine with one engine inoperati

A few thoughts, if I may .. [i] a. A descent and turn towards operating engine[/i] Descent ? probably. Turn to the operating engine ? depends on...

9 years ago
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Loading System Bravo

Cargo/baggage ? I would need to have a play with the loading information to form a definite view. However, a quick looksee at the moment line ...

9 years ago
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PPL Study guide Bravo loading system

Noted this thread whilst idly wandering through the site. While Richard's comments are valid, folk should note that, for Australia, generally one s...

9 years ago
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