study, Toolco introduced a report by Simat of Simat, Hellieson & Eiehner, Inc., which Brownell rejected in its entirety.
According to the evidence accepted by Brownell, the six Boeings were diverted to Pan Am between November 5, 1959 and June 8, 1960 (they would otherwise have been received by TWA between July 19, 1959 and May 9, 1960). The ten Convairs were to be received between December 1959 and September 1960. On March 5, 1959, Toolco told TWA that it would not receive the Convairs. Six were then diverted to Northeast (and in 1963 repurchased by TWA). The other four were retained for a time by Toolco, then sold to Northeast (and never bought by TWA).
Brownell accepted Wemple’s estimates that the Convair diversions resulted in the loss to TWA of the use of 5.1 planes in 1960, 9.9 planes in 1961, and 10 planes in 1962, and 7.9 planes in 1963. The six Boeings, unlike the Convairs, were suitable for international as well as domestic use. Brownell accepted Wemple’s conclusion that their diversion resulted in a loss to TWA of use of the following quantities of planes in the stated years, for international and domestic use:
International Domestic Total
1959 0.2 none 0.2
1960 3.6 1.4 5.0
1961 3.7 2.2 5.9
1962 4.8 1.0 5.8
1963 0.9 0.5 1.4
The markedly lower figures in each category for 1963 reflect the purchase by TWA in that year of the six diverted Convairs and the lease for use in 1962 and 1963 of five Boeing B-331B’s (as substitutes for the diverted B-331’s).
Brownell also accepted Wemple’s testimony that even if it had received its full 63-jet fleet on schedule, TWA would still have leased, as it in fact did, four B-720B aircraft (a medium range late model Boeing) during 1961-62 and would also have purchased 18 additional B-131B fan jets in 1962. Thus, these purchases were not considered as mitigating the damage caused by Toolco’s diversions.
Toolco argues that there is no justification for Brownell’s refusal to consider the purchase and lease of these B-720B’s and B-131B’s as at least partially mitigating damages. Alternatively, it contends that there is no support for the conclusion that any deficiency in TWA’s fleet existing in 1959-60 as a result of Toolco’s diversions, could have had effects that lingered for four years, into 1963, three years after Toolco relinquished control of TWA. Rather, Toolco insists, at least by 1962 and 1963 any deficiencies in the TWA jet fleet must be attributed either to TWA’s business judgment that investment in replacements was not economically justified (thus there could have been no damage resulting from the earlier diversions) or to TWA’s unjustified refusal to mitigate damages. The cumulative thrust of this pincer argument is that if TWA would have profited, as Brownell found, from the lost jets, why did not TWA replace them? If it would not have profited, there can be no damages.
We find Wemple’s testimony that the B-131B purchases and the B-720B leases did not represent “substitutes” for the lost jets justified by several considerations. First, these assumptions were based on Wemple’s background of expertise, and there is no basis in the record for finding they were dictated by TWA’s counsel, as Toolco maintains. Second, no airline which commenced using commercial jets in the period during which damages were assessed stood pat and remained contented with its originally acquired fleet during that time. Thus, between 1960 and 1963, Pan Am increased its jet fleet from 38 to 64; United from 34 to 91; and American from 25 to 73 jets. It is entirely reasonable and appropriate to assume TWA would also have expanded its fleet. Thus, it was not for the Master to conclude that the damages caused by the diversions had been entirely mitigated as soon as TWA acquired a fleet of 63 jets, as it did during 1962. It was not until