The text and images below were copied from a four page memo issued by BAC in August 1966 to show why you needed to buy the Super VC10. They've convinced me! I hope that the tables are legible, get in touch with me if you would like a clearer version of the data.
Super VC10 Passenger Appeal Advantage
North Atlantic Load Factor
Comparison with Boeing 707/Douglas DC-8 I.A.T.A. Operators
The Super VC10 has the greatest passenger appeal of any long range jet flying today.
This statement is born out by the graph and tables attached, which show the revenue passenger load factors for the scheduled operators, on the world's most competitive air route, the North Atlantic.
The figures used are straight averages of East and West bound flights, as quoted in I.A.T.A. monthly returns. No "Adjustment" or "Weighting" has been made for frequency or for points of departure and destination.
If the figures were to be weighted for seasonal variations in frequency the 19.46% figure quoted below would be slightly reduced to 18.5%. Thus no significant difference is obtained by using weighted figures which it can be argued are "biased". Therefore, for the purpose of this comparison the figures used are those published by I.A.T.A. and averaged taken are of the figures shown.
The two tables show:
1) The 1st year of Super VC10 operations on the North Atlantic.
2) The continuing trend of superior passenger appeal in 1966.
It can be seen that during the first year of operations, the Super VC10 had an average load factor of 19.46% greater than the average load factor of all operators on the North Atlantic using Boeing 707 or Douglas DC-8 aircraft.
A 19.46 increase in load factor in a 139 seat Super VC10 represents an increase of 27 passengers over the same capacity aircraft operating at the average 707/DC-8 load factor.
Assuming minimum conditions i.e. the 27 extra passengers all travelling tourist, London-New York, at a minimum return fare of £107. 3. 0. Thus the superior passenger appeal of the Super VC10 generates an extra £2893 per round trip.
Thus during the first years operations of the Super VC10 on the North Atlantic by B.O.A.C., the superior passenger appeal of this aircraft, assuming the conditions above and based on the 1208 round trips operated by B.O.A.C. with the Super VC10 generated an extra revenue of