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Replies: 1,315
Views: 922,653
Posted By selfin

An appropriate consensus standard for 23.2115...

An appropriate consensus standard for 23.2115 (take-off performance) is ASTM F3179 which has been revised twice since 2016 but that version is freely viewable at...
Replies: 1,315
Views: 922,653
Posted By selfin

There's no certification or operational rule...

There's no certification or operational rule requiring accelerate-stop distance to be determined for most small aeroplanes. Were it a rule for performance class B aeroplanes it would be in...
Replies: 1,315
Views: 922,653
Posted By selfin

I agree with Alex. Common standard parallels are...

I agree with Alex. Common standard parallels are used in some regional sets. The publisher in question addresses this in its FAQ (http://ww1.jeppesen.com/main/store/legal/charts/vfr_eu_faq.jsp):

...
Replies: 1,315
Views: 922,653
Posted By selfin

ICAO Doc 9432 was based on the first edition of...

ICAO Doc 9432 was based on the first edition of the UK Radiotelephony Manual CAP 413 which is now in its 22nd edition.

In UK a PAR talkdown can be done at over 20 military aerodromes but it is...
Replies: 1,315
Views: 922,653
Posted By selfin

That question is so poorly worded that it ceases...

That question is so poorly worded that it ceases to be meaningful. It seems to ask for the final forward azimuth of a geodesic (great circle) between the given stand- and forepoints. On the WGS84...
Replies: 1,315
Views: 922,653
Posted By selfin

Strictly in terms of the properties of the curve...

Strictly in terms of the properties of the curve that is correct. The required rate of turn near the beacon will however often exceed what can be achieved. Arthur Bernhart discusses these curves in a...
Replies: 1,315
Views: 922,653
Posted By selfin

For a pursuit starting with a non-zero crosswind...

For a pursuit starting with a non-zero crosswind component there will be at most only one instant when the headwind component is zero. The crosswind component will only be zero if the beacon is...
Replies: 1,315
Views: 922,653
Posted By selfin

Keith, In the airspeed coordinate system the...

Keith,

In the airspeed coordinate system the beacon has a velocity vector opposite to the wind vector.

Is it not correct that when the beacon is finally reached the aircraft velocity vector is...
Replies: 1,315
Views: 922,653
Posted By selfin

Paco, Thanks for the heads up on the path...

Paco,

Thanks for the heads up on the path being a pursuit curve. The derivation from first principles in terms of groundspeed coordinates was not going well!

The solution in airspeed...
Replies: 1,315
Views: 922,653
Posted By selfin

There's an answer to that here...

There's an answer to that here (https://astronomy.stackexchange.com/questions/2408/why-is-twilight-longer-in-summer-than-winter-and-shortest-at-the-equinox), and in the final two pages of chapter 8...
Replies: 1,315
Views: 922,653
Posted By selfin

The curvilinear geodetic coordinates are simply...

The curvilinear geodetic coordinates are simply longitude, geodetic latitude, and height. Your description is for an ENU or NED (https://en.wikipedia.org/wiki/North_east_down) frame.


Yes but...
Replies: 1,315
Views: 922,653
Posted By selfin

To amplify Paco's response, the orthogonality of...

To amplify Paco's response, the orthogonality of geodetic coordinate axes simplifies the Euclidean norm. Using an orthogonal system is equivalent to setting the angle(s), between principal axes, in...
Replies: 1,315
Views: 922,653
Posted By selfin

KayPam, That means the bulk modulus K...

KayPam,



That means the bulk modulus K is finite. Increasing K results in higher speeds. In other words for an acoustic wave to have a finite travel time the volume of the material must change....
Replies: 1,315
Views: 922,653
Posted By selfin

Alex, Those are equivalent statements...

Alex,



Those are equivalent statements and are, so far as I'm aware, required by SAE AS 8019 (and its successor 8019A) which is referenced by ETSO-C2d...
Replies: 1,315
Views: 922,653
Posted By selfin

KayPam, There is a similar question...

KayPam,



There is a similar question reported here (http://www.pprune.org/professional-pilot-training-includes-ground-studies/455580-atpl-theory-questions-27.html#post8619922) and, as noted by...
Replies: 1,315
Views: 922,653
Posted By selfin

There are some excellent articles by the Swedish...

There are some excellent articles by the Swedish meteorologist Anders Persson on the effect. See here (http://www.aqqa.org/pp/persson.html) for a short list.
Replies: 1,315
Views: 922,653
Posted By selfin

TAS cannot be obtained from CAS or EAS by using...

TAS cannot be obtained from CAS or EAS by using independent linear terms.





This formula requires a loss of distinction between EAS and CAS which may be an acceptable assumption at low speed...
Replies: 1,315
Views: 922,653
Posted By selfin

Pittslover, While not directly satisfying...

Pittslover,

While not directly satisfying your request I will nevertheless recommend HH Hurt's classic Aerodynamics for Naval Aviators. The FAA hosts a PDF copy, not under US domestic copyright...
Replies: 1,315
Views: 922,653
Posted By selfin

Phantomas21, ICAO document 7300...

Phantomas21,

ICAO document 7300 (http://www.icao.int/publications/pages/doc7300.aspx), a consolidated edition of the Convention on International Civil Aviation available from ICAO, answers your...
Replies: 1,315
Views: 922,653
Posted By selfin

Total pressure in a compressible medium is not...

Total pressure in a compressible medium is not dynamic + static pressures.

When air (M ≤ 1) is brought to rest isentropically at the head of the pitot probe, the total pressure will be given by a...
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