RAIN REPELLANT
While on the 320 in JAKARTA some years ago, my instructor paused to apply a coating of commercial (for your car) rain repellant on his window, he purchased at a local hardware store, just before we flew to Medan.Upon return, there was a heavy rain shower over the threshold of the only runway available at the time, reported visibility was 1500m.I was very very surprised at the difference between his view out the window compared to mine.He could see quite well, but on my side it was basically blind.I could only provide monitoring based on my instruments, visual support out the window was not available.An eye opener, excuse the pun,Peter.