4th Annual Eastern Sierra Cruise - Lone Pine - June 2007
#261
#262
Burning Brakes
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I called today and confirmed our reservation at the Dow Villa. My wife and I can't wait. All I have to do now is get the new a/v sysyem installed in the next few weeks.
See you all soon.
Dave
See you all soon.
Dave
#263
Melting Slicks
#264
Instructor
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How'd I miss this!
Well I guess I blew this one, I've been pretty busy lately and lost touch with the Ridgecrest crowd but I think we will show up in Lone Pine for the party. I know you are full but if there is any cancellations let me know and we will be there.
#265
Safety Car
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Stan0
#266
Melting Slicks
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Test first . . .
So, Dennis (RidgecrestC5), here we go. What's the terminal airspeed velocity of a fully laden swallow? Get this right and you're in. (OK, you're in anyway, but give it a try)
#268
Instructor
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So, Dennis (RidgecrestC5), here we go. What's the terminal airspeed velocity of a fully laden swallow? Get this right and you're in. (OK, you're in anyway, but give it a try)[/QUOTE]
Although a definitive answer would of course require further measurements, published species-wide averages of wing length and body mass, initial Strouhal estimates based on those averages and cross-species comparisons, the Lund wind tunnel study of birds flying at a range of speeds, and revised Strouhal numbers based on that study all lead me to estimate that the average cruising airspeed velocity of an unladen European Swallow is roughly 11 meters per second, or 24 miles an hour.
Although a definitive answer would of course require further measurements, published species-wide averages of wing length and body mass, initial Strouhal estimates based on those averages and cross-species comparisons, the Lund wind tunnel study of birds flying at a range of speeds, and revised Strouhal numbers based on that study all lead me to estimate that the average cruising airspeed velocity of an unladen European Swallow is roughly 11 meters per second, or 24 miles an hour.
#269
Safety Car
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Gosh I'm sorry Dennis, but that's incorrect. You failed to factor in a head wind velocity at an altitude of 897 ft. ( normal flying altitude ) along with the current humidity at that moment. Factoring in a head wind of 3 knots ( I'm sure that's what it was at the time of your calculation ) and with humidity at 35% , it would give you a negative factor of 6 which changes your estimate of 11 meters per second or 24 miles an hour. So, the European Swallow flying into a head wind of 3 knots at 897 ft. at 35% humidity changes the cruising speed to 14.25 miles per hour.....assuming it's a fully matured male and not a female European Swallow.
Sorry Dennis, you won't be able to join in on the fun. But the good news is, Kelly can still come!
Tidbit of info: The fully matured African male only cruises at 11.14 miles per hour....it doesn't eat as well as the European male does and probably has some disease
Last edited by stano; 05-08-2007 at 10:52 PM.
#270
Melting Slicks
Gosh I'm sorry Dennis, but that's incorrect. You failed to factor in a head wind velocity at an altitude of 897 ft. ( normal flying altitude ) along with the current humidity at that moment. Factoring in a head wind of 3 knots ( I'm sure that's what it was at the time of your calculation ) and with humidity at 35% , it would give you a negative factor of 6 which changes your estimate of 11 meters per second or 24 miles an hour. So, the European Swallow flying into a head wind of 3 knots at 897 ft. at 35% humidity changes the cruising speed to 14.25 miles per hour.....assuming it's a fully matured male and not a female European Swallow.
I love female European swallow Sorry, you set us up for that!
I love female European swallow Sorry, you set us up for that!
Last edited by spiral04; 05-08-2007 at 11:46 AM.
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Burning Brakes
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#276
Melting Slicks
Thread Starter
Right or wrong, you're in. I'm still laughing . . .
See ya' there, Dennis.
#277
Melting Slicks
Thread Starter
Originally Posted by BlackOps
So, Dennis (RidgecrestC5), here we go. What's the terminal airspeed velocity of a fully laden swallow? Get this right and you're in. (OK, you're in anyway, but give it a try)
Originally Posted by RidgecrestC5
Although a definitive answer would of course require further measurements, published species-wide averages of wing length and body mass, initial Strouhal estimates based on those averages and cross-species comparisons, the Lund wind tunnel study of birds flying at a range of speeds, and revised Strouhal numbers based on that study all lead me to estimate that the average cruising airspeed velocity of an unladen European Swallow is roughly 11 meters per second, or 24 miles an hour.
See ya' there, Dennis.
#278
Drifting
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Although a definitive answer would of course require further measurements, published species-wide averages of wing length and body mass, initial Strouhal estimates based on those averages and cross-species comparisons, the Lund wind tunnel study of birds flying at a range of speeds, and revised Strouhal numbers based on that study all lead me to estimate that the average cruising airspeed velocity of an unladen European Swallow is roughly 11 meters per second, or 24 miles an hour.
See ya' there, Dennis.[/QUOTE]
AHEM....the actual question was TERMINAL airspeed, not AVERAGE CRUISING airspeed. If we can't follow directions....we must be GOCC or at least FOCCers.
Originally Posted by BlackOps
So, Dennis (RidgecrestC5), here we go. What's the terminal airspeed velocity of a fully laden swallow? Get this right and you're in. (OK, you're in anyway, but give it a try)
#279
Melting Slicks
Bruce
#280
Drifting