Neil Williams flew the Speke Mosquito [B.35 I think] down to Bovingdon.
It is quite possible that the person I remember who "claimed" to have flown the Speke mosquito was an imposter. He appeared at our flying club with a seat type parachute which he said he was given after the film was finished. We had a single Tiger Moth at the time and he built up quite a few hours while trying to get an airline job back. He disappeared without paying his flying bill.