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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Glide Range and Endurance

[color=blue][i][b]What calculation are you using[/b][/i][/color] We have constrained L/D, which constrains alpha and CL. If we equate CL for two ...

5 years ago
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Minimum climb rate

[color=blue][i][b]I do not see where zero degrees is related to 3000 ft density height ?[/b][/i][/color] The whizz wheel calculation is made simple...

5 years ago
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Glide Range and Endurance

I notice a lot of references just sort of say to reduce speed a little if weight is less than MTOW. With the L/D constrained, the sums become reaso...

5 years ago
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Exercise 5.12 page 217 question 4

First point - the books vary through different revisions so far as pagination, etc., is concerned. Generally better for the readers if you post a ha...

5 years ago
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Minimum climb rate

[color=blue][i][b]I then got my flight computer E6B put in zero° under 3000 (DH) then I read 94 TAS.[/b][/i][/color] It might be useful were you to...

5 years ago
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Altimetry Rates

The ISA model is rather idealised and is based on a dry atmosphere which, of course, is pretty well never the case. That is to say, if we are talking...

5 years ago
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Range and Endurance

I don't have your particular POH page to review. Perhaps you might post a photo of it ? I expect that it will indicate that the speed recommended ...

5 years ago
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Minimum climb rate

This sort of question revolves on the specific wording. Presumably you have related the question from somewhere else ? Can you confirm that yo...

5 years ago
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Altimetry Rates

If I may add a few words to Stuart’s and Bob’s posts. [color=blue][i][b]I would have expected both to have some relationship to the underlying ISA ...

5 years ago
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Passed Performance!

OK, it's pretty clear that you have a Dalton and your brother-in-law a Jepp. However, it appears that, perhaps, both of you really don't understand...

5 years ago
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Passed Performance!

It won't take long to sort out your problem. First, though, we need to be quite clear just which nav computer you have. "E6B" doesn't define it ad...

5 years ago
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Air Law summary sheet

Not for taking in. My observation is that many students have never heard of it so I like to give it a plug, where appropriate.

5 years ago
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Passed Performance!

Once again, be wary of terms in weight and balance. Industry practice, over the years, has resulted in its being a bit of a dog's breakfast. For...

5 years ago
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Passed Performance!

Empty weight definition. This is defined in CAO100. 7 and no-where else. All other terms, essentially, are not defined other than within the conte...

5 years ago
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Passed Performance!

Reading between the lines, MissSoph uses a Dalton nav computer, not a Jepp machine ? If that is the case, then ETAS would have no functional meani...

5 years ago
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