Thanks for the answers.
The radio had an interview with a lady who 'thought they all would die' - because the had to land at high speed with no flaps.
Apparently the SN crew did not inform the passengers about what was going to happen and the cabin crew were very tense when instructing how to assume the crash position.
A bit of information can cure a lot of worry.
What would the Vref and landing length be for an Avro (assumed fully loaded with pax) on a dry runway with flaps up ?
Regards
Michael