WW publishes polar data on their gliders that they say isn't 100% accurate, but they say,
Then they give figures on their assumptions for the polar data, which is a hook-in weight of 130% of minimum placarded hook-in weight. They also state how to adjust the polar data with varying hook-in weights.We have tried to state realistic data so that the data will be useful for speed to fly calculations.
So, doing the math (and assuming my Z5 harness weighs 15 lbs, which may be a bad assumption until I actually weigh it)...and using the WW polar data...I calculated that my best glide (for an Eagle 180) is 29.5mph.
I'm not naive enough to assume this is a perfect number...but does it even sound like it's in the ballpark?
Better yet, can anyone recommend an easier way to find best glide without having to do a dozen flights in calm air taking all sorts of notes and measurements? (And without buying a 5030?)
Thanks,
Scott
PS - I'm sure some of you think I'm an idiot for even caring what my best glide speed is when I'm a beginner pilot. Fine, indulge me! It's a fun way to pass the time on a quiet evening!