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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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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Aircraft Trim Sheet loading

Looking at the 340B CG envelope [attachment=1287]340B CG.jpg[/attachment] we can see several sloping CG limit lines shown in the next graphic a...

8 years ago
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Aircraft Trim Sheet loading

[color=blue][i][b] Could you give a real life example of an aircraft with the sloping line which can't be made a straight line on the index graph[/b][...

8 years ago
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Question re fuel planning and holding at another destination

[color=blue][i][b]in the real world of GA how does one go about calculating the reserve fuel released for holding?[/b][/i][/color] Very cogent poin...

8 years ago
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Question re fuel planning and holding at another destination

[color=blue][i][b]Fly from A to B, due to B unusable how long after flying to C, can you hold there?[/b][/i][/color] It all depends on where you do...

8 years ago
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Fixed Reserve Fuel

Most of you wouldn't recall the following mishap [color=red Jim had a very strange idea about reserves and how they should be calculated on his own a...

8 years ago
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Question about flight fuel

Fuel is one of (a) flight (and diversion) fuel - ie what you expect you might use. Time to the alternate is irrelevant to the considerations (b) ...

8 years ago
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Avery

I think, perhaps, both you and other students will get better value out of this question if you include your solutions. That way, we can work through...

8 years ago
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Performance

My apologies - I misunderstood your first post to be referring to ISA deviations. Suggest you rework your calculations starting with pressure height...

8 years ago
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Performance

Quick question - can you check for a typo - is the summer deviation intended to be +17 ? Either way, the summer case is the more critical for perfo...

8 years ago
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