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6/17/21 

AIM 

FIG 6

2

15 

FIG 6

2

16 

Negative (Aircraft) 

Message received and understood (Aircraft) 

NEGATIVE (NO) 

Fishtail plane 

NEGATIVE (NO) 

Fishtail plane 

Negative reply from aircraft:

Negative reply from aircraft: 

Message received and understood by aircraft: 
Day or moonlight - Rocking wings 
Night - Green flashed from signal lamp 

Message received and understood by aircraft: 
Day or moonlight - Rocking wings 
Night - Green flashed from signal lamp 

FIG 6

2

17 

Message received and NOT understood (Aircraft) 

Message received and NOT understood by aircraft: 
Day or moonlight - Making a complete right-hand circle 
Night-Red flashes from signal lamp. 

Message received and NOT understood by aircraft: 
Day or moonlight - Making a complete right-hand circle 
Night-Red flashes from signal lamp. 

Emergency Services Available to Pilots 

6

2

11