John Heddles
@john-heddles
Customer
Famed Member
Joined: May 14, 2016
Last seen: Feb 14, 2026
Topics: 2 / Replies: 957
Reply
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
Forum
Reply
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
Forum
Reply
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
Forum
Reply
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
Forum
Reply
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
Forum
Reply
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
Forum
Reply
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
Forum
Reply
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
Forum
Reply
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
Forum
Reply
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
Forum
Reply
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
Forum
Reply
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
Forum
Reply
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
Forum
Reply
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
Forum
Reply
PPL Worksheets

Perhaps, first, you might recheck your sums ?

5 years ago
Forum
Page 29 / 64