The International Cessna^® 170 Association

Paul-WI wrote:So, what about 8.50 tires (those that are running them). I had to run 35psi for the skis (as per the STC) but am wondering if I should drop them down for the summer?

Paul

On my 55' B-Model and 8.50's the answer varies between 8-24 PSI. If I am playing on river sandbars with loose river rock or sandy surfaces AND I am at a very light weight, I will go as low as 8-10 pounds. This does increase the chance of a tire slipping on the rim if coming home and landing on pavement though. Luckily I don't have to worry about that at my home field. For most flights/loads where I am flying off of various non-prepared surfaces at normal weights, usually between 18-20 lbs. Max weight trips operating off of pavement, I'm right back to the standard 24PSI. I tend to inflate my tailwheel to just over 40 PSI and let it slowly creep down over time until near 30 and refill.



Jughead

blueldr wrote:1SeventyZ,

The stock tail wheel for the C-170 was a smaller Scott tail wheel with a solid rubber tire the same as was used on the C-120 and C-140. The Scott 3200 was an optional item.

From my perusal of the IPC, I know that is true, but I've never seen a 170 with the smaller tailwheel installed

Miles, look at this post at the bottom left picture. This is a '48 with the original correct 3B24. It is the second I've seen installed on a 170.
http://www.cessna170.org/forums/viewtop ... 358#p83569