---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Sat 10/30/04: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:30 AM - Re: Best Climb Speed (David Paule) ________________________________ Message 1 _____________________________________ Time: 08:30:10 AM PST US From: "David Paule" Subject: Kolb-List: Re: Best Climb Speed 0.00 THE_BEST_RATE BODY: The best Rates 0.00 FORGED_RCVD_HELO Received: contains a forged HELO --> Kolb-List message posted by: "David Paule" Boyd, The speed that gives you the best rate of climb changes because the prop's efficiency curve moves its peak efficiency to a higher or lower speed. That means that the maximum excess power is at a different speed than it was previously. Might not be much, but it's there if you look for it. You'll also find that the best L/D speed changes with prop pitch and whether the prop is turning or not. Again, it might not be much, but it's there. Dave Paule Boulder, CO FSII ------------------- if you change props with different efficiencies you will change the climb rate but not the best climb speed. the best lift to drag speed will remain the same wether going uphill with power or downhill in glide. boyd