Text 8306, 67 rader
Skriven 2008-11-18 23:24:00 av Bob Klahn (1:124/311)
     Kommentar till en text av Earl Croasmun
Ärende: Excellent summation
===========================
~>>  DC> In McCain'scase, he lost speed in a turn and didn't
~>>  DC> properly increase his speed to compensate.  IOW, he didn't
~>>  DC> maotain his speed above stall.

~>>  Uh... actually... you just made the same mistake Earl made. He
~>>  did not have to lose speed in the turn

 EC> As I already pointed out to you, that was your mistake that
 EC> you mistakenly attributed to me.  I didn't say he "had to"
 EC> since it was irrelevant to the point and you were losing
 EC> the relevant point on more basic grounds.

 You said he did lose speed in the turn. Or, you said some
 "rubbed off". I said that wasn't necessarily so. Which
 translates into English as, it didn't have to happen that way.
 He did not have to lose speed to crash as he did.

 This is a matter of the physics involved, not some rule he *had*
 to obey.

 EC> But since you have now tossed out that same strawman to
 EC> Ceppa, maybe he will pick it up and beat you over the head
 EC> with it.  So why don't you explain to him exactly how a
 EC> plane can be flying level at a given airspeed and a given
 EC> power setting, and then make a level turn, at the same
 EC> power setting, and NOT lose any airspeed?  Be sure to show

 Now you are truly begging the question.

 Here's the error in your reasoning: IF he had been flying level,
 and made a *LEVEL* turn, he would not have crashed as he did.
 The fact that he crashed is the evidence he did not fly level.
 He flew into the water.

 So, he could well fly straight and level, and go into a turn
 without losing airspeed. However, he will then be losing
 altitude to do it, and, if not corrected, find himself in the
 water. Sound familiar?

 EC> your work.  Use scratch paper and a slide rule if
 EC> necessary, but don't look at anyone else's paper.  And for

 Not necessary. Those of us with even a bit of experience in the
 field learned that one long ago.

 EC> extra credit you can explain what would happen in the two
 EC> options of him (a) increasing the angle of attack and (b)
 EC> not increasing it in the turn.

 Increasing the angle of attack increases lift. However, it also
 reduces the airspeed, which requires more power. Failure to
 increase the angle of attack leads to unlevel flight, in a
 downward direction. Which is what happened to McCain.



 EC> You just keep talking yourself in deeper and deeper....

 Yet I have you to make me look good by your constant
 demonstrations that you have no idea what you are talking about.

BOB KLAHN bob.klahn@sev.org   http://home.toltbbs.com/bobklahn

... Fingers not found - Pound head on keyboard to continue.
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