The Logans
West Virginia
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Joined: 05/22/2005
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Hi all....
I'm going to make a turning circle in our yard, so I don't have to keep backing the TT in through a small gate. Problem is, I'm "math challenged"!
What does the radius of the circle have to be to permit a safe turn for the rig? It's a Jayco 25RKS and a F150 Super Crew.... probably about 45 feet in total length.
There is some formula with maximum degree of turn relating to the diameter of the circle,  .... or in english, how tight can I turn the sucker without breaking anything?
Thanks!
Me, My wonderful Wife, 2 Newfies (Molly and Shandie) & 2 Mixes (Max and Sam)
05 Jayco Jay Flight 25RKS
05 Ford F150 4 X 4 Super Crew - 5.4 and 3.73
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JFG
TN
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Joined: 07/01/2007
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Math challenged also.... take it to a large parking lot with a buddy and do your confortable circle. Measure it.
Fred
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FamilyCamping
CA
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Joined: 08/19/2005
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I wish I had a yard the size of a football field!
1999 Dodge Ram 2500 Cummins Quad-Cab Long-bed Auto 4X4 3.55LS 285/75/16 tires.
2000 30' Layton bunkhouse TT with 15' slide out.
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TMBLSN
Washington State
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Joined: 04/07/2008
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WAY too many variables to plug into a simple formula. I agree with JFG, it's far easier to just get the number from a real-world test than from a theoretical formula.
Variables include (but probably not limited to):
turning radius of vehicle
wheelbase of vehicle
hitch distance from rear axle
length of trailer (hitch to bumper)
overhand of trailer bumper behind trailer axle
angles associated with hitch
2006 Jayco 275BHS
1998 C2500
Lee
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ScottG
Bothell Wa.
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Joined: 02/25/2005
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I had a yard that was 90' wide and I could just barley turn around our (then) 19' TT. I like the parking lot idea.
Scott, Grace and Wesly
2003 Dodge 3500 4x4 Cummins (lightly bombed),
2004 Forest River 25RKS many, many mods.
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robsouth
Near Atlanta, GA
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Joined: 06/20/2004
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Here you go. Simple as pie.
(x2 + p + y)2 = px2 - qx - r + p2 + 2y(x2 + p) + y2
= (p + 2y)x2 - qx + (p2 - r + 2py + y2)
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"Great minds like a think"
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pammi
Westland, MI
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robsouth you're hilarious! 
2004 Rockwood Roo 23B (new to us)
2006 Nissan Xterra
When we camp, it's DH & me mostly. Occasionally step-daughter (16) comes, though not necessarily her choice 
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qtla9111
Monterrey, Mexico
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The diameter should be the total length of the TV and TT. JMHO
1998 Nissan Pathfinder
2004 Shadow Cruiser 18ft.
Living and Boondocking Mexico
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coolbreeze01
Redding, Ca
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robsouth wrote:Here you go. Simple as pie.
(x2 + p + y)2 = px2 - qx - r + p2 + 2y(x2 + p) + y2
= (p + 2y)x2 - qx + (p2 - r + 2py + y2)
Now that is what I was think-in When I had acres, I still did some backing 
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saltbayou
hammond,la.
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Joined: 05/30/2008
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When you make your circle remove your trunion bars or you may have one pop out. I am at a state park now and needed to make a u-turn,instead of going to a larger area I tried in a spot that was just too tight and one of the bars came out. I didn't know until I started unhooking. I unhooked and went looking for it and there it was right in that spot. Glad I got it back and learned my lesson!
2007 Tundra DC 5.7L
Reese Dual Cam,Prodigy Brake Control 2008 Northshore 295 BS-DSL
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