Aerodynasmics
07-29-14, 05:56 AM
#1
Full Member
Thread Starter
Join Date: Oct 2012
Location: Upstate NY
Posts: 339
Bikes: Various "modded" eZips and multiple econversions
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 2 Times
in
2 Posts
Aerodynasmics
Either for speed or range, it is important to consider aerodynamics ... and road load.
I found some nice charts-graphs that really help!
Basic aerodynamic shapes - w/drag coefficients
Human Powered Vehicle Performance
Drag , via bicycle type - 22mph
Most impressive, to me, was that the "Upright Commuting Bike" requires almost exactly 2x the energy to maintain 22mph, as the "Racing Bike, Rider Crouched"!
("Air Drag", "Rolling Resistance" combined)
Watts required to maintain various speeds
(Note: These, tested, eMotorcycles are equipped with full front fairings!)
Pedal assist capability, Average & Athlete
I found some nice charts-graphs that really help!
Basic aerodynamic shapes - w/drag coefficients
Human Powered Vehicle Performance
Drag , via bicycle type - 22mph
Most impressive, to me, was that the "Upright Commuting Bike" requires almost exactly 2x the energy to maintain 22mph, as the "Racing Bike, Rider Crouched"!
("Air Drag", "Rolling Resistance" combined)
Watts required to maintain various speeds
(Note: These, tested, eMotorcycles are equipped with full front fairings!)
Pedal assist capability, Average & Athlete
Thread
Thread Starter
Forum
Replies
Last Post
sepandee
Classic and Vintage Bicycles: Whats it Worth? Appraisals.
4
10-07-14 08:14 AM
sstang13
Classic and Vintage Bicycles: Whats it Worth? Appraisals.
0
10-08-12 05:19 PM
