Looking at some facts reported, he topped the loop at 2700 feet, when he knew the manoeuvre required 4000 feet minimum. And his airspeed was also about 50 knots short of what was required to complete the manoeuvre BEFORE entering the loop (ie before negative G or hypoxia could have taken hold...
Looking at some facts reported, he topped the loop at 2700 feet, when he knew the manoeuvre required 4000 feet minimum. And his airspeed was also about 50 knots short of what was required to complete the manoeuvre BEFORE entering the loop (ie before negative G or hypoxia could have taken hold...