Formation display at Hunter Valley Airshow, NSW, Australia in early February 2025. It was performed by SkyAces Formation Aerobatic Team of Paul Bennett Airshows, and the fleet in this video consisted of the following four biplanes. 1. Wolf Pitts Pro (VH-PVB, Yellow) : Empty weight 544kg/1200lbs, 400 Horsepower, Roll Rate 380 deg/sec 2. Wolf Pitts S1-11X (VH-PVX, Orange)： Empty weight 544kg/1200lbs, 400 Horsepower, Roll Rate 380 deg/sec 3. Wolf Pitts Pro (VH-88T, Red) 4. PITTS S1-E (VH-IPB, Red/White): Empty weight 450kg