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?
Cartop Kayak Carriers
Gedi Convertible Helmet
Sport Cases (Electronics)
Touring Kayak Paddles
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Not dangerous. It may be air resonance |
Posted by: g2d 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)