This is a continuation of the "ADF/Transponder" thread ...
Assume the following facts:
1- You are the cockpit crew of some aircraft. This
aircraft does not have an FMC.
2 - Al Qaeda gunmen have broken into the cockpit. While
you survived the ensuing gun battle, much equipment has
been shot away including all compasses whether magnetic
3 - Furthermore, for purposes of electronic navigation you are reduced to a single ADF instrument. You have no VOR receivers either, and you have no voice communication, nor can you usefully see outside because a) it is night and b) you
are somewhere west of Crazy Woman, Wyoming, USA, so that there
is in fact nothing useful FOR you to see.
4 - Having decided to land, you pick an airport which is known
to be 24 miles due north of the KXXX NDB which just happens
to be within range of your ADF receiver.
5 - Formulating a plan, you decide to fly direct to KXXX and
then take up an outbound bearing of 360, planning to fly at
180 knots for approximately (repeat approximately) three
minutes which should place you in the immediate vicinity
of your newly-intended destination airport. You're not
sure what you will do once you arrive over the airport
but as it happens that issue is not part of this quiz.
Here are the questions for the first part of the quiz:
QA1 - Are you or are you not able to fly "direct KXXX"?
QA2 - Are you are are you not then able, with CERTAINTY,
to take up an outbound bearing of 360?
QA3 - Why did you give the answers that you gave?
Now here's the second part of the quiz ...
Assume you are a trained scientist who regulary conducts experiments using the Scientific Method. You know from past observations that under normal conditions your bearing TO an NDB can be inferred by correlating the ADF needle reading with the magnetic heading of the aircraft. You have also observed that your bearing FROM the NDB must, under normal conditions, be the reciprocal of your bearing TO the NDB. From this you conclude that you can use the tail of the ADF needle to determine your bearing FROM the NDB. Excited by this discovery, you publish it.
But conditions are not normal. In fact, conditions are precisely
as described for the first part of the quiz. But now, being a scientist, you decide that instead of trying somehow to land you will instead conduct a series of passes at KXXX. Each time, as you arrive over KXXX, you make a an instantaneous right turn of NNN degrees, where NNN is a random integer in the range 001 to 360. Each time you then write down the observed reading of the tail of the ADF needle.
QB1 - Is there a pattern to the resulting list of observed NNN/Tail-Of-Needle readings?
QB2 - Is the following statement true or false ...
"You can get BEARING FROM information from a VOR but you cannot get BEARING FROM information from an NDB, only bearing TO, relative to the aircraft's heading, because it's only a homing beacon, nothing more."
QB3 - Do you or do you not publish a retraction regarding your
"tail of the ADF needle give bearing FROM" discovery?