Max wind
How much wind can your rig take?
A tall, flat side catches wind like a sail. This estimates the broadside gust that could tip your rig, parked and at highway speed.
Formula from the original megawattrv.com calculator
Tipping threshold, broadside gust
Parked
0
At 65 mph
0
Midland emergency weather radio
- Why it's here
- A weather radio gives you the wind warning when there's no cell signal at camp. The original wind calculator linked this one.
How the math works
Wind pushes on the side of the rig. Think of that push as acting halfway up the wall. Gravity pulls down through the middle of the axle, half a track width from the downwind wheels. The rig tips when the wind's turning force beats the weight's turning force.
Pressure to tip = weight × half the track width ÷ (side area × half the height). Wind speed comes from pressure = 0.003328 × mph². Each rig type gets the track width and a moving factor from the original Megawatt tool, because a rig at speed already has the road pushing it around.
What it isn't
A forecast or a promise. It assumes a flat, steady gust square to the side. Suspension lean, road crown, gust timing, and a driver's correction all move the real number. Treat the low end of the range as the line you don't get near.