10w 18w 21w HID smack down

[Mo2vation]

It's ok to point a single 21w HID at an overhead passing aircraft as long as you're down at least 50' or deeper. If there's two of you down there with the 21's though, the plane may still circle back and try to land on you since you'll be brighter than all of Fort Lauderdale or Seattle which are currently the only cities in the continental US that the Homeland Security Administration allows the proximal use of mutiple heavy-wattage HID's (41 CFR §301.6211-1).
That applies only to fixed-wing aircraft - helicopters are still prone to skin melts so should never be aimed at unless they signal overt hostile activity.

This is why Scuba Board ruled. When newbies hear people talking about the golden age of SB - when the smack was flying and the hash was slinging completely unabated - let this post be your blast from the past.

I'm still cracking up. More like peeing my pants, here.

"...the plane may circle back and try to land on you..."

Holy crap, that's funny.

Long live fido.

Man. Its like 2002 / 2003 again. We miss you, ORing.

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Ken