Kharg Island, Iran, around 1973. Leo deVigne (spelling?) ex-Westland pilot, arrives to give a Wirlwind conversion to a young American pilot who has just joined Bristow Helicopters. During a post-flight de-brief we can hear voices are rising then Leo says, so that all can hear, “Don’t tell me what the Flight Manual says, I wrote it!” Later, Leo points out to us engineers/mechanics, “The helicopter doesn’t have a clock, the regulations state that a public transport helicopter must have a clock.” He was correct.