lift fan life

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beezer
Posts: 91
Joined: February 13th, 2012, 11:28 am

lift fan life

Post by beezer » February 11th, 2020, 2:05 am

good until the blades start to crumble? actually, I was more interested in damage tolerance. they get nicks & dinks. I sand them out every couple years. is there any data on how much can be removed? I looked on their site but didn't see anything

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bphillip2
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Re: lift fan life

Post by bphillip2 » February 18th, 2020, 7:56 am

I would be checking the hub for cracks. Though it seems to have been a casting defect, I did see a serious failure of a hub.

The blades could eventually fail in the sun.

beezer
Posts: 91
Joined: February 13th, 2012, 11:28 am

Re: lift fan life

Post by beezer » February 19th, 2020, 12:03 am

I have it stripped & cleaned. hub is good. blades are a bit weathered but still solid. I've sanded out the nicks & profiled the leading edges. what I was hoping for is minimum chord dimensions, but I'm not worried.

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bphillip2
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Re: lift fan life

Post by bphillip2 » February 19th, 2020, 9:08 am

I have never sanded one.

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