No doubt that Tom will see this and chime in with the real story.
I don't know how many model iterations there are or their differences but it all springs from the pre-war model 55 vertical stance 'fire hydrant' in purple or blue hammertone. This was Air-Way's redesign language after the sublime upright Dirt Master of 1938/39.
The concept was engineered in a sleeker modern shape in 1949 thru 1954 as the blue Model 66.
This 'sputnik inspired' styling continued with the green Model 77 with 'astrogator' hose swivel dome.
The purpose of the 4 corner runners was so that the vacuum could also be laid on any side and pulled along the carpet & floors with easier access to the bottom directed blower port. Not sure when the metal Tool Caddy was introduced but it is a honey - shaped cutouts corresponding to two floor nozzles, a felt snap-on polishing pad, a horsehair triangular dusting brush and the crevice tool. designed to be carried or hung on the handle for storage & transport room to room.
Next improvement in the two-tone turquoise Model 88, was the addition of a caster and rear wheels, the axle of which was bent to serve as a cord wrap.
Sometime during the run of the 88 the exhaust port was moved from bottom of the machine and placed on the side with a sealing trap door (which would be above the back wheels when in the horizontal position.
Here Tom needs to insert the consecutive history (and corrections) of when the powered brushroll port was introduced and about the 88 Mark I and II , the Puce Yellow & Cream Mark V and so on...up to the Centurion and Guardian. Somewhere in there are a Burnt Orange and Purple models.
Final picture is my FrankenHoover creation that took many folks by surprise - or horror - at the Minneapolis Convention. It also took a prize which stunned me as I built it as an imagineering exercise in re-cycling and had intended to leave it behind after the Convention. Now, of course, it has a debatabley dubious Pride of Place between the Air-Ways and Hoovers - with a lovely First Place Blue Ribbon.
It began as a too-much-time-on-my-hands vacuum store trash bin sourced double brush Hoover Windtunnel V2 with a destroyed upper section but the motor was good. Those double helix brushes intrigued me. Once I got started I couldn't stop.
The Tim Hortons dustbag container is a 2 liter double-wall thermal mug. I drilled 1600 perforations in a spiral pattern in the liner cup which is a perfect fit for an Air-Way or Electrolux bag. The Dirt Devil hose & wand make above-the-floor cleaning a breeze. So, it runs like an Air-Way with integrated Power Nozzle. It didn't do half bad in the cleaning contest and was fun to watch & use. The handle with cordwinder came off a rusty old eureka floor polisher and the Monster Hand is an animated table-crawling Halloween prop that strokes the Dust Canister - inducing even more exciting static electrical suction and dirt agitation. Okay, I made that last part up.

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Anyway, I believe the Air-Way line of vacuum cleaners are among the top 6 ever designed and manufactured during the Age of Genuine Innovation.
[this post was last edited: 10/11/2014-22:00]
