Speed of sound (in air) is dependent on the temp of the air, not the altitude.
Speed of sound (in air) is dependent on the temp of the air, not the altitude.
People falsely believe the sos is dependent on altitude... or pressure if you will. Not your fault, it was taught that way for ages.View attachment 239081Obviously I was incorrect, it is a complex formula and does not approach that lower 500 mph number I tossed out.
Luton 1988.
Still the most elegant aircraft in flight ever.Luton 1988.
I lived there at the time and never knew about that.
Certainly in the Top 10, but you'll look for a long time before finding a prettier plane than the Connie IMHO.Still the most elegant aircraft in flight ever.
in my opinion.
View attachment 239081Obviously I was incorrect, it is a complex formula and does not approach that lower 500 mph number I tossed out.
It is my favorite sound in the world.The sound made by a V12 RR Merlin as a Spitfire or Hurricane makes a low pass has been described as ripping a piece of calico cloth and is guaranteed to make the hairs on the back of your neck tingle if you have any soul.
The sound made by a V12 RR Merlin as a Spitfire or Hurricane makes a low pass has been described as ripping a piece of calico cloth and is guaranteed to make the hairs on the back of your neck tingle if you have any soul.
Last time I heard one I was in my back garden in Luton when a Spit passed directly overhead, climbing out of Luton airport.The sound made by a V12 RR Merlin as a Spitfire or Hurricane makes a low pass has been described as ripping a piece of calico cloth and is guaranteed to make the hairs on the back of your neck tingle if you have any soul.
That is classic Grimly. Here's another that always has me in stitches....Last time I heard one I was in my back garden in Luton when a Spit passed directly overhead, climbing out of Luton airport.
All the better for being totally unexpected and at something approaching full power, too.
The classic one though...