Must have three blade prop?

Fencer

Experimentalist
In A/FD in Remarks section for 6N7 New York Seaplane Base it says; must have three blade prop. Could somebody please explain why?
 
Three bladed props are generally shorter and therefore quieter than their 2 bladed equivalent. However, is it the reason that they are required? I dunno...
 
Seems arbitrarily restrictive. I can't imagine a J-3 is going to be making an excessive amount of noise. How is this rule being enforced? Normally noise abatement has a max DB output level.
 
In A/FD in Remarks section for 6N7 New York Seaplane Base it says; must have three blade prop. Could somebody please explain why?

Sounds as if some city councilman got on Wikipedia and determined that three are naturally quieter than two and made it mandatory to "save the spotted owls" :)

If three are quieter than two, well, lets require eight!
 
But wait, wouldn't 3 blades make 50% more noise than 2? and 33% less noise that 4? and 40% less than 5? Ahh crap, better enforce the one bladed propeller law!
 
So it's cool to have, say a Mallard or Albatros... but not a J-3S ... no problem... that makes perfect sense ... typical NY rules... everything and every place has a rule in NY.
 
I'd like to see how they enforce it (or how they plan on enforcing it). Yes, it would be irresponsible to go in there just to mess with them and their crazy rule. But does a J3S really make too much noise to deal with?
 
There's no indication that the "requirement" has any basis in law.
Are you contending that a violation of a restriction in the AFD could not result in an enforcement or are you saying there is something unique to that specific restriction?
 
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Are you contending that a violation of a restriction in the AFD could not result in an enforcement or are you saying there is something unique to that specific restriction?

Is the remarks section of the A/FD regulatory? I'm sure the FAA has nothing to do with it, and as such wouldn't really care if you followed it or not. Can the City ticket you, probably.
 
Are you contending that a violation of a restriction in the AFD could not result in an enforcement

I'm saying I've never seen any evidence that having something in the AFD makes it regulatory. The airport manager can put whatever he wants there. One locally has in the remarks for a class G airport: "Two way radio communication required." So the airport manager can establish effective Class D airspace? I doubt it.
 
Is the remarks section of the A/FD regulatory? I'm sure the FAA has nothing to do with it, and as such wouldn't really care if you followed it or not. Can the City ticket you, probably.

Be careful going that route. I've seen several examples of airplanes getting "stuck" at airports where their operation was banned by the city/county/ect.

Say you land your Citation at a small airport that was posted "no turbojet aircraft allowed". The FAA won't care, but you might have to take your fancy jet out of there on a truck.
 
Say you land your Citation at a small airport that was posted "no turbojet aircraft allowed". The FAA won't care, but you might have to take your fancy jet out of there on a truck.

From 200 feet away, one can tell the difference between a running turbojet and piston, no? Can you tell from 200 feet away, if a running piston airplane has a 2 blade or 3 blade propeller? I'd sure like to know how they check on that.

Look, I'd follow it, but I'm saying I'm not sure that its enforceable. Plus, what if I land 1/2 a mile down river, not at the "seaport" and taxi up the river. Once your on the water, your a boat.
 
Isn't it just simpler to follow the rules? Why put yourself in a situation that could result in such a headache?

I'm as big a fan of ignoring stupid laws as the next guy but I left being argumentative just to inflate my ego in my teens*. Isn't taxiing still an airport operation which makes what you're doing contrary to the published information for the airport?



*For the most part.
 
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