P
Phil Allison
Guest
"fritz the fuckwit "
<
** Good grief.
The speed and input powers are both known.
So the total amount of drag force is known = 49N.
** The data shows that the amounts of drag are similar.
The Sunswift uses about 900 watts (or 1.2 hp) to overcome aerodynamic
rag - see graph.
http://www.eevblog.com/images/projects/SunSwiftDragGraph.png
A good cyclist outputs about that same figure when sprinting.
..... Phil
<
" Kym is full of Horeshit and a raving NUT CASE "
Reckon that is no more air drag than experienced by a racing cyclist
on a
velodrome.
It would have to be a lot less.
Suspicion seems to be confirmed.
** Not one tiny bit is has !!!!!!!!!!!!!
Power = Force x speed
What is the relevance of that equation ?
** Good grief.
The speed and input powers are both known.
So the total amount of drag force is known = 49N.
The topic is air drag. Otherwise known as frontal area (A) times drag
coefficient (Cd)
Specifically, the air drag of the Sunswift vs. a racing cyclist.
Preliminary investigation indicates that the Sunswift does have a much
lower Cd,
** The data shows that the amounts of drag are similar.
The Sunswift uses about 900 watts (or 1.2 hp) to overcome aerodynamic
rag - see graph.
http://www.eevblog.com/images/projects/SunSwiftDragGraph.png
A good cyclist outputs about that same figure when sprinting.
..... Phil