Now I have to tell you that I like big tires. My wife likes big tires. And that is the only reason we have 8 x 600s. Can't even tell you if I've ever landed somewhere that I needed them except maybe in my dreams. Lately I've realized I've been burning a lot of gas on convention trips. 10.5 and 11 gph have been my average and I'm going nowhere fast either. Been wondering if the drag of the big tires is worth it. Or if they really have any effect at all. I've considered reducing size to 7 x 600 which to the eye you can't hardly tell the difference from an 8 x 600.
Been shopping for a nice set of 7 x 600s and holy cow those things are $110 a tire.
![Shocked 8O](./images/smilies/icon_eek.gif)
So to the point to this post. Does any one have the differences in drag for each size tire? George you probably have that info right on the tip of your tongue.
![Smile :)](./images/smilies/icon_smile.gif)
And if no one has it I'd think if a fun little project for someone a bit more mathematically inclined than me to figure this out. I'm wondering if I might pick up a mile or two per hour or at least maintain the 110-115 mph my plane will do at a slightly lower power level.
And before anyone suggest it, NO I won't be putting on wheel pants next. I've never seen a decent Rat Plane with wheel pants.
![Cool 8)](./images/smilies/icon_cool.gif)