Originally Posted by
ljsense
I'd just take whatever you estimate your power to be without a trailer and multiply it by 1.6. If that doesn't make you happy, try 1.9 or 1.7 or some other number.
Yeah, I started with this. It's probably close enough.
Originally Posted by
asgelle
Look up Cd for a rectangular box at Re~10^5, estimate A for your trailer, reduce CdA for the trailer by about 25-30% for being in your draft and add to your CdA. Plug the inputs into
analyticcyling.com to get speed as a function of power or power as a function of speed.
OK, Perhaps I shall calculate the trailer as a Borg Cube.