Moshe Braner
May 31st 21, 02:20 PM
Does anybody have a polar for the HPH 304C - the model with 15m
unflapped wings? Either a graph or just some numbers will do. The
"Glasflugel 304" polar built into XCsoar (span not specified) seems
wrong (STF too high, much higher than, e.g., LS4). The "304CZ" built-in
polar also calls for a high STF, but not quite as high. Is the "H-304"
line in Max Kellerman's polars spreadsheet - or the more mechanized
polar10.xls - appropriate? It seems to be (at wing loading 35.8) very
similar to the LS4 (at 34.4) up to about 85 knots. Above that speed the
304 does better, according to that spreadsheet.
unflapped wings? Either a graph or just some numbers will do. The
"Glasflugel 304" polar built into XCsoar (span not specified) seems
wrong (STF too high, much higher than, e.g., LS4). The "304CZ" built-in
polar also calls for a high STF, but not quite as high. Is the "H-304"
line in Max Kellerman's polars spreadsheet - or the more mechanized
polar10.xls - appropriate? It seems to be (at wing loading 35.8) very
similar to the LS4 (at 34.4) up to about 85 knots. Above that speed the
304 does better, according to that spreadsheet.