For purposes of the clause entitled “Loss of or Damage to Leased Aircraft,” the fair market value of the aircraft to be used in the performance of this contract shall be the lesser of the two values set out in paragraphs (a) and (b) below:

(a) $___; or

(b) If the contractor has insured the same aircraft against loss or destruction in connection with other operations, the amount of such insurance coverage on the date of the loss or damage for which the Government may be responsible under this contract.