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F.7.  Aircraft Acknowledgement Signs
 The aircraft acknowledgment signals shown in Figure 6-7 are used to respond to the visual body signals.  These signals are straightforward and simple in their application.  The signals used for “message received and understood,” “affirmative”, and “negative” should be performed smoothly and slowly.  Care must be taken in making the signal for “negative” to avoid a skid at slow speed, which could develop into a violent stall.  The signal can be performed as a series of shallow turns rather than “yawing” the aircraft, thereby avoiding the skid danger.
 

 
Affirmative

 Message Received and Understood
 
 
Affirmative
 Message Received and Understood
 
Negative

 Message Received and Not Understood

 
 
 
 Message Received
 

 
 Figure 6-7 Aircraft Acknowledgement Signals There are recognized emergency communication symbols designed to be used by survivors ashore to impart information to aircraft.  These are international symbols and can be found in various publications
accepted symbols were reduced in l981 by international agreement from eighteen to five.  Some publications may still carry the out-of-date symbols.  The new ground-to-air symbols are shown in Figure 6-8. These signals may be made using fabric strips, wo
 

Requires Assistance

 No or Negative

 
 
Requires Medical Assistance

 Yes or Affirmative

 
 
Proceeding in this Direction

 
al Assistance Yes or A
 
 
 

  Figure 6-8 Ground Emergency Signals Positive identification of an Auxiliary vessel may be important when providing directions to a disabled vessel or distress location.  Coast Guard vessels are easily identified by their distinctiv
 
 patrol boards names, and numbers may provide some help, although they may not be easily seen from above.  The uniforms and PFDs worn by the Auxiliarists may be helpful for identification and
 

 
F.9.b.  Surface-to-Air Recognition Banner
 Auxiliary vessels are encouraged to display a special Surface-to-Air Recognition Banner.  (see Figure 6-9)  This banner consists of a black capital “A” in block lettering on an International Orange background.  The banner is normally displayed on the deck or top of the pilothouse with the base of the “A” facing the stern.  The sign is approximately a 36-inch square.  This banner is used to identify Auxiliary vessels on patrol from the air.  (see Auxiliary Operations Policy Manual, COMDTINST M16798.3 (series), Chapter 3, Section E)
　
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