A student asked me this question the other day.
You enter a hold at an airfield at 4500', there are two aircraft below you. You are all in IMC. The airfield does not have radar.
ATC tell you to stay in the hold and await further clearance. No Expected Approach Time is given.
Then you have a full radio failure, can't hear & can't talk.
What do you do?
I have my own ideas but was wondering anyone knew what the 'official line' might be.