BEST ANGLE VS BEST RATE OF CLIMB.
BEST ANGLE OF CLIMB ALSO KNOWN BY THE HEAVY METAL AS BEST GRADIENT
SPEED THAT;
GIVE THE AIRFRAME MOST POWER AVAILABLE OVER POWER REQUIRED.
SAY THE SPEED IS 150 KTS FOR BEST GRADIENT.
THIS EQUATES TO A SPEED WHERE THE LEAST AMOUNT OF POWER IS REQUIRED TO FLY AT 150 KTS, AND ANY POWER AVAILABLE OVER THIS MIN POWER REQUIRED CAN BE USED TO GAIN HEIGHT.(increase ange of climb)
SAY 150 KTS NEED 40% OF THE POWER AVAILABLE, THE OTHER 60% IS WHAT IS AVAILABLE TO CLIMB.
THE OTHER SIDE OF THE ARGUMENT SAY 180 KTS GIVES THE BEST RATE OF CLIMB IN UNITS PER MINUTE BUT IT WILL NEED MORE POWER TO MAINTAIN 180 KTS BUT THE LD RATIO IS BETTER SO THE AIIRCRAFT WILL CLIMB AT A GREATER NUMBER OF UNITS PER MINUTE SO BE HIGHER THAN CASE A AFTER A FIXED TIME; BUT FURTHER DOWN TRACK., WHICH WOULD NOT AVOID A NASTY NOISE IF THERE WAS A NEAR OBSTACLE.