Aerospace Minute by David

On 31 March, David talked about the Air Force's efforts to save fuel through formation flying. Birds fly in formation to save energy, same concepts can be applied to aircraft. The Air Force found that C-17s can save about 10% on fuel consumption by flying level with the lead aircraft, 140 feet to either side, and 7000 ft spacing. Two test flights from Hawaii to the mainland resulted in the saving of 7000 lbs of fuel. Use of this technique requires relaxing delivery schedules so multiple aircraft can be flown at once. Also, additional avionics will be helpful. Aircraft considered for this program include the C-17,KC-135, KC-10, C-130, C-5, and F-16. Of special interest is flying fighters in close formation with their tankers on long ferry missions.