Here comes Concorde
Concorde is about to begin flying trials again, preliminary to those at full speed and operational height. The results of these will help to determine its final range and payload, which are estimated to be 4000 miles and 25,000 lbs.
The protoype Concorde, grounded since April for modifications, will come back into service with surprisingly few changes. The biggest of these, however, is the introduction of more powerful Olympus engines. These, it is believed, will help it attain a cruising speed of Mach 2 and the prospect of meeting its performance specification regarding range and payload.…
