Airways avionics
 

I was browsing through the ANO last night (as you do...) and I saw in Schedule 5 that the radio requirements for a light aircraft flying IFR in Class A is:
1 Comm radio
1 Nav radio
ADF
DME
Mode S.
I always thought that for Airways flight (which I take it is included in 'Class A') you needed 2 Comm and 2 Nav radios. Have I misinterpreted this, or have I always been misled?

Also, is a marker beacon reciever included in 'equipment needed for ILS approach'? I assume so.

Why can't they just write the damn thing in English?

They have written it in English!!!!
This has been the same requirements for a number of years.
If you look at approaches these days they are LOC/DME so no need for markers.

L

But what about the need for 2 nav & 2 comm radios?

Never needed 2 nav/comms, just the equipment listed. This part of the ANO has not changed for years.

L

“This part of the ANO has not changed for years.”

Interesting, so you are saying the mode s requirement has been there for many years. All that Lobbying and it was in black and white all that time…:):)

Rod1

............... Really?

.....and FM immunity??

Am I right in recollecting that the COM and NAV radios must be separate boxes each fed from its own fuse? The idea being, presumably, that you still have something in the event of a fault. If you have combined a COM/NAV set then you need two boxes to satisfy this requrement.