MrTri123 wrote:
Any guess which costs more drag - reaching up to pull up the straw and then reattach on a torpedo vs time lost leaving it where you don’t need to unattached and attach again? I realize the tube is not aerodynamic. Just wondering if the time savings is lost by leaving the straw up. Especially if the straw is shielded by high hands.
Also may drink more if the straw is right by the face .
Let's say you are riding a HIM for 150minutes (2.5hours) = 9000 seconds
Let's say the straw causes 1w of drag, you lose say 1 watts for 9000 seconds, = 9000 joules.
If you drink every 10min you drink 15x, Let's say for 5 seconds you lose 20watts shifting around (CDA goes from 0.25 to 0.27), so 20watts for 75s (5sx15) or 1500 joules
You can plug in numbers you prefer.
I was lazy and used .001 CDA = 1 watt which is good at 30mph, but you get the idea