ANNEX A. TERMS OF REFERENCE. 1. It is considered that in order to deny Scapa Flow to the Fleet, or to attack the Fleet by air in Scapa, the most advantageous German plan would be as follows:(a) To land as many troops as possible by parachute and air landing aircraft to capture the aerodromes north of May Island. This would deny the use of these aerodromes to our aircraft. (b) To land additional troops by air to ensure that these aerodromes remain in German possession, and to form the nucleus of a land force for further operations.