The Bell Helicopter Company has produced 3 of the top 5 most-produced rotorcraft in the world. At 5,600 produced, the Bell 47 series models stands just behind the Bell model 206 Jetranger (at 8,460) and the Bell UH-1 Iroquois (at 11,580). The Bell 47 was the first helicopter certified for commercial (non-military) use.
The lead photo shows a rendering of the Army medivac version of the Bell 47 G used during the Korean War and made famous by the opening credits of the long-running MASH TV show. But the helicopter itself was the star of the show in the TV series "Whirlybirds" from the late 1950's.
The model 47 H is a very limited-edition variant of the 47 G, with perhaps only a half-dozen still flying today. It is largely similar to the 47 G, but has a covered tail boom and lacks the full-wrap bubble-canopy of the 47 G in favor of a less dramatic windscreen:
The model 47 J ('Ranger') was a co-star on the Whirlybirds TV series, but in real life it became the first helicopter to officially transport a sitting President (Dwight Eisenhower):
I have built the 47G model, too; below it 'hovers' above a wallet-size picture of the real thing:
My futuristic version of 47G, as I imagine it, is what I call the Bell 47000 GEE! (below) It is a design modified from Lego set 07031 (World City Police Helicopter).