We sometimes see rigs like this Powerfoil in movies — through some twist of cinematic fate, they tend to disconnect from their moorings and go spinning out of control into the nearest bad guy. In real life, according to the Big Ass Fans website, these wicked-cool-looking fans with their 16’ – 24’ spans move air effectively and non-lethally.
You might expect these giant fans to be power hogs, but their 1 to 2 HP motors only draw about as much power as a ceiling fan at home, and an in-line helical gear reducer makes wear and tear much less of a problem.
If you want one you’ll have to custom-order it, ’cause they build each fan for the space it’s meant for — expect to pay more than for a household ceiling fan.
Powerfoil Plus [Big Ass Fans]