After about 60kmh, the canoe starts to make a whining sound due to wind passing between the roof and canoe - is this normal? Can you still drive on faster or will more wind start to catch the underside of the canoe making it dangerous?
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Not dangerous. It may be air resonance |
Posted by: ezwater on Jul-23-13 2:07 PM (EST)
with your rack. Try tying some socks over the rack, and see if it breaks up the resonance.
Posted by: Dr1Gonzo on Jul-23-13 2:24 PM (EST)
just had it on a set of foam blocks...
In that case|
Posted by: deuce on Jul-23-13 2:42 PM (EST)
you might try moving the boat forward or back. I've noticed that sometimes makes a difference. You also might try putting pool noodles or other type of foam on thwarts, yokes, etc. for transport.
Posted by: PJC on Jul-23-13 2:57 PM (EST)
Back years ago when I used foam blocks, I can recall there was sometimes a buzzing from the straps vibrating in the wind that could maybe be described as a whine. It was a little like the sounding of a stringed instrument with the boat/car roof was acting as a "sounding board". Depended a little on wind direction as I recall. Think it was because there was a longer length of strap spanning the roof and exposed to the wind than when using a rack, where the strap is typically very tight to the boat.
Posted by: Guideboatguy on Jul-23-13 5:32 PM (EST)