Kestrel and PLM Helicopters
Kestrel was the predecessor to PLM. I don't think there was ever a Bell 47 for Nigel and Timothy Laing was not the L of PLM, that was his uncle Hector Laing, although Timothy did become chairman of PLM/PDG. Regarding Peregrine and Kestrel, they were only the AOC holder to which Kestrel was attached to initially.