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Old 13th December 2010 | 18:35
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PBlank
 
Joined: Oct 2010
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From: California
Authoritative HSI Techniques

Is there a written and definitive text on the proper usage of an HSI?

Here is an example: Imagine you are tracking inbound on the 270 degree radial. You would have the HSI course selector arrow set for 090 and the TO arrow pointing ahead of the aircraft. Your 'clearance' is to fly to the VOR and turn right and track outbound on the 180 degree radial. I know many folks who, upon arriving at the vor, will set 360 degrees into the HSI course selector and 'fly the tail'. I also know folks who like to have the head of the needle match the heading of the aircraft and they put the needle head at 180 and have the 'from' flag showing.

I have tried to find a 'definitive' and 'authoritative' discussion or written document as to which technique is the officially sanctioned one but I have been unable to find it. I also tried to research who invented the HSI thinking that they might have published something.

I understand the pros and cons of each method...I am just trying to find something official to hang my hat on (so to speak).

Thanks,

Phil
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