G–APAO was parked to the left of another Tiger Moth. The pilot reported that as he taxied he tried to turn left through approximately 90° but was prevented from doing so by the tendency of the tail-wheeled aircraft to turn into wind, which was blowing from the right. He decided to turn right through 270° instead but, when the aircraft was heading downwind, its turning circle became larger than he expected and he found himself in close proximity to the other Tiger Moth. He was unable to stop his aircraft, which had no brakes, or turn away from the Tiger Moth before he collided with it.