Sorry I don't know the correct terminology for the land and ocean kites. My question is, how does a 9m ocean kite differ compared to a 9m land kite (besides the look and structure of the kite)

I understand ocean kites aren't meant to take a pounding on the ground and they require a pump. Which style kite would have a stronger pull? And do people use ocean kites to do land boardiing on the beach?

Not owning any inflatable leading edge foils, from what I gather, they create less power per meter on average compared to your standard "inland kite" if only due to the fact that they're in a "C" shape. A good percntage of the wing is pointing down and not generating lift or power. That's why they're so darn huge.

Here are few answers for ya..... fly high was correct... land kites generate more power per meter then do water kites. Obviously the structor and the way that water kites are built is different, due to being able to relaunch the kite in the water (most open cell foil kites will just sink once they hit the water, or take on water into the openings, causing the kite to be unlaunchable until you empty the water from those pockets and let the kite dry a bit). You can, however, kite in the water with a land kite...not really recommended though.

Then there are kites like the flysurfers and peter lynn kites that are capable of water relaunching... these are closed cell foils, meaning that the cells in the wing get filled with air, then you close them up to cause the kite to float on the water. These are great for land, water, snow, etc.

Water kites, SLE's and Lei's (bow's, c's, etc.) are inflateable kites, and you need a pump as you stated to inflate the kite. The wing itself has numerous
bladders that you inflate (each bladder is pretty much like a balloon stuffed into a sleave of the kite, giving the kite it's shape). For this reason, it's not recommended to fly these kites on hard land. A lot of people still fly them on soft sand beaches, and in the snow they're very popular as well.

Hope this helps some,
Joe

For sizing it goes something like this. All these kites will have roughly the same pull

19m Peter Lynn Arc
16m LEI C-kite
13m LEI Bow style
10-13m Closed Cell foil(Flysurfer type)(Depowerable)
8-10m Open Cell foil(Depowerable)
6-8m Fixed power foil.

Give or take a bit, different brands, different kites, some do better than others but that's the general gist of it.