Tom Hall wrote:
> Be particularly cautious with stainless bladed fans. Stainless tends to
> work harden upon flexing so you could end up with small cracks near the
> rivets or ends which can and do propagate into major structural failures.
> You won't be the first to find a piece of stainless blade protruding from
> your now useless fat core radiator.
> Tom
Got to second this warning. In additon, although the flex flattens the blade
out when you dont need the drag at higher rpm, the flow at lower rpm is not as
high as the 6 blade Canadian (or Volvo?) option. This is especially true of the
pointy-ended fans. Another draw-back is that they do not come in the needed
diameter. One is too small, and has a big shroud clearance. The next one that
is too big is near impossible to trim the hardened stainless without carcking.
Aluminum, backed with steel ribs, is the best solution.
Steve
--
Steve Laifman < One first kiss, >
B9472289 < one first love, and >
< one first win, is all >
< you get in this life. >
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