RE: In the National Airspace System (NAS), what class airspace do you normally fly in?
Best I can tell you are in Class G from the surface to 700 feet AGL. Above 700 feet AGL you are in Class E airspace. At 3,000 feet MSL you are into LGA Class B airspace. Looks like you are about 150 to 200 feet above sea level, so the Class B actually starts about 2,800 feet above where you are standing.