Stray Cat
Philosopher
- Joined
- Sep 6, 2006
- Messages
- 6,829
I already realise I'm peeing into the wind here, but who needs sleep? 
You're right, it's not
The black line indicating where the smoke would be is only 5 miles across Johnson's line of sight. Remind me, did Johnson happen to mention a 5 mile wide streak with a solid looking blob at one end?
Of course, the mistake I made was not realising that the actual plane would turn invisible once it had stopped belching out magic smoke, because in your inaccurate diagram (that you did as fluff in lieu of not actually being bothered to do any calculations with real numbers and stuff)
The arc of the plane extends well beyond the smoke line thus, the distance the plane would travel across Johnson's line of sight would be 8.2 miles.
And apparently wouldn't be seen in the remains of the magic disappearing smoke, but about 3 miles to the left of it.
Are you starting to see why we actually do calculations yet and not just rely on our "regular guy without any professional air experience" guesses?
Shows how close you read my post and looked at the illustration, which was stated as being not perfect and primarily to illustrate the ideas, but even so, if you look at the black arc on the red line ... that is where I suggested the smoke line may have been for a slow approach and power turn/accelleration... and it's not 8 miles.
You're right, it's not

The black line indicating where the smoke would be is only 5 miles across Johnson's line of sight. Remind me, did Johnson happen to mention a 5 mile wide streak with a solid looking blob at one end?
Of course, the mistake I made was not realising that the actual plane would turn invisible once it had stopped belching out magic smoke, because in your inaccurate diagram (that you did as fluff in lieu of not actually being bothered to do any calculations with real numbers and stuff)
The arc of the plane extends well beyond the smoke line thus, the distance the plane would travel across Johnson's line of sight would be 8.2 miles.
And apparently wouldn't be seen in the remains of the magic disappearing smoke, but about 3 miles to the left of it.
Are you starting to see why we actually do calculations yet and not just rely on our "regular guy without any professional air experience" guesses?
Yes, and for it to not have been there at all it would also have been in a different place altogether.For an actual takeoff the line would have been in another place altogether.
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