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John Heddles
@john-heddles
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Joined: May 14, 2016
Last seen: Oct 29, 2026
Topics: 2 / Replies: 988
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Equilibrium

I don't have a copy of Bob's text so my comments are generic rather than specific to his document. [color=blue][i][b] If equilibrium means there mus...

9 years ago
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Aircraft Trim Sheet loading

I've had a look at the sheet in some more detail. The following overlay is based on an analysis to make the fuel grid correct so far as the IU equati...

9 years ago
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Aircraft Trim Sheet loading

Two random comparison examples - (a) starting data weight = 3800 kg CG = 4700 mm From a looksee through my archives, this is probably a reasona...

9 years ago
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FAILED FLIGHT PLANNING

As Bob indicates, TODA is the relevant figure for light aircraft calculations. However, there is a sideline caveat re TORA/TODA. It probably w...

9 years ago
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Graph or flow chart

[color=blue][i][b]if I have a weight of 2550kg and Index units of 530, and cargo has to be moved from the front to the back, can I use the forward lim...

9 years ago
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Aircraft Trim Sheet loading

[color=blue][i][b].. the King Air is at the other end of the market and flown by experienced, professional pilots within a disciplined training and ch...

9 years ago
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Aircraft Weight Versus Landing Distance

Just to add a bit to Bob's comments .. [color=blue][i][b].. based on the technique used in the flight tests that the charts are based on.[/b][/i][/...

9 years ago
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Aircraft Trim Sheet loading

Now had time to review the sheet in reasonable detail. As suggested earlier, the entry line numbers and the envelope relate to the CG envelope (as ...

9 years ago
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Aircraft Weight Versus Landing Distance

The chart format is the old DCA P-chart with which I am quite familiar, having generated more than a few in years gone by. [i]Caveat - I would need...

9 years ago
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Aircraft Weight Versus Landing Distance

Perhaps you might tell us upon what data you base your statement ? Comment might then be feasible. Three principal considerations (putting ...

9 years ago
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Graph or flow chart

You've got the story in a nutshell.

9 years ago
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Graph or flow chart

Because of the envelope datum position used for the Echo (up towards the front of the aircraft), the graph slopes back and is a tad rough both in prec...

9 years ago
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Graph or flow chart

[color=blue][i][b]An echo is loaded at ZFW with a total weight of 2400kg and at a total moment index off 590mm.[/b][/i][/color] Please be [color=r...

9 years ago
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Aircraft Trim Sheet loading

I've now had time to undertake a preliminary review of the sheet and it appears to have a number of significant errors/variations from what one would ...

9 years ago
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Aircraft Trim Sheet loading

Well done, that man. Parallel sides on the CG envelope in a trimsheet are an instant red flag. It is premature to say that the sheet is in error ...

9 years ago
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