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A lot of the CdA figures floating around are estimates based on what the estimator thought the Cd might be. Many of the Wiki figures came from the mayfair company website which took a lot from an old version of the cartest program as well as (apparently) estimating a bunch. Accordingly it is hard to say how accurate these are.
I think it would be very helpful if there were some indication in the spreadsheet of where the data came from and whether it is a mfr's number, an independently tested number, or an estimate (and which part, Cd or A or both were estimated).
I'd be interested in knowing where the nology folks got their numbers from.
Without this info it seems like we're really not going to have very good data.
--Steve
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