How to determine braking action in the absence of TWR info?
I have always found the lack of braking action advice from ATC a deficiency in the system when landing on runways during moderate or heavy rain, especially on runways that are not cambered or grooved.
I have landed several times during moderate rain on such runways in various ports in Asia/Pacific without being able to establish any advice regarding braking action from our friends in the tower.
Is there some way of using rain reduced visibility as a guide as to the expected depth of water sitting on the runway?