PDA

View Full Version : Turning radius of 2007 Tourmaster?


henryj
03-11-2021, 12:52 AM
We're building an RV garage and need to make a U-shaped driveway to get the RV around the garage and into its door. Does anyone know the turning radius or diameter for the 2007 Tourmaster T40-C?

Chuck v
03-11-2021, 11:19 AM
The T40-C has a 288 inch wheel base and a 55 degree steering cut, so I looked up a formula posted elsewhere and found:


CALCULATE DP TURNING RADIUS FROM WHEELBASE - FCCC - SINGLE REAR AXLE (https://www.walmart.com/search/?query=rear%20axle)
Just got off the phone with FREIGHTLINER CUSTOM CHASSIS CORPORATION
CUSTOMER SUPPORT CENTER 1-800-FTL-HELP (1-800-385-4357)

INDEPENDENT FRONT SUSPENSION (https://www.walmart.com/search/?query=front%20suspension) - 60 degree wheel cut:
wheelbase in inches / 0.866 = turning radius in inches (eg. DSDP @ 242”WB / 0.866 = 279.445” : 279.445/12 = 23.28ft. turning radius
STRAIGHT AXLE FRONT SUSPENSION (https://www.walmart.com/search/?query=front%20suspension) - 55 degree wheel cut
wheelbase in inches / 0.819 = turning radius in inches (242” / .819 = 295.482 :295.482/12 = 24.62ft. turning radius


So substituting the correct values for the Tour Master you get 288/.819 or about 352 inches or 29.3 feet. I believe this is the track the wheels travel, so allow more for front overhang and the substantial rear 'tail swing' you will have...


Chuck

henryj
03-12-2021, 01:48 AM
Chuck - this is really helpful information. We met with the builders today and I did not have this information. I will pass it along to them. We're building a 30 x 50 RV garage and the Tourmaster will stay in the garage and be oriented to take advantage of the view. We also met with the excavator and envisioned a number of scenarios to turn the RV around, which is a real challenge. Thank you so much for going to the trouble to calculate this number!

Swiss Man
03-21-2021, 11:00 AM
Holy smoke! That’s a substantial answer Chuck! Chapeau!