1 90% of the atmosphere by mass is below an altitude of 16 km. 2  The common altitude of commercial airliners is about 10 km. 3  99.99997% of the atmosphere by mass is below 100 km. 4  The highest X-15 plane flight in 1963 reached an altitude of 354,300 ft (108.0 km).
Add the seasoned flounder fillets to the pan when the oil begins to shimmer. Saute the flounder for roughly 3 to 4 minutes per side, or until the flesh becomes opaque and is firm to the touch. If you are unsure if the fish is done, use an instant-read thermometer. The flounder is thoroughly cooked if the internal temperature is 145 Fahrenheit.
Heat the oven to 200 F (this is to keep fried fish warm while frying subsequent batches). Place the flounder fillets in a shallow baking dish; pour in enough milk or buttermilk to cover the fillets and then set aside. In a mixing bowl, combine baking mix or pancake mix and cornmeal; stir to blend. In a deep heavy skillet or saute pan, heat about 1 1/2 to 2 inches of oil to 365 F (185 C).