All
Cecil E. Craigo hang glider notes are invited.
Work history?
Confirmation of vital data. Distinguishing him from others of same name.
Patent history?
Interface with other hang glider inventors, thinkers, builders?
Hungry for information on him. I do not want to confuse him with others of same name.
Our Cecil E. Craigo was from Whittier, California. He knew Harry E. Rollins of Garden Grove, California.
Note: Jim Hobson of late, pioneer seed-man of recreational hang gliding in 1962 with the Rogallo Hang Glider he publicized, was happening HG-wise about the time of some of Cecil E. Craigo's work on the flexible-wing hang glider.
http://dir.groups.yahoo.com/group/kitep ... essage/856 is a filing in 1965
point with Cecil E. Craigo and Harry E. Rollins co-inventors on a flexible-wing focused patent. Cecil shows earlier in flexible wing development, which will be shown. The drawing in the 1965 files seems to echo some earlier work by John Worth ...several years, where the Worth A-frame is stark in the stiffened Rogallo Wing hang glider, as was that in James Hobson; this topic thread on Cecil should expose some of these matters. The patent right now linked does not show the front view of the A-framing to the platform, but just the side view. The towing lines are bridled to the payload platform where goods, human litter, or live humans could be placed. Years earlier Worth demonstrated some of similar for Francis Rogallo on the field.
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CAUTION: I do not know if the "Jr." is our man or not. And the following data may or may not be our guy; but I will state it as a matter of discerning research; maybe someone will find distictions and verification; thanks.
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MAYBE or MAYBE NOT: Cecil E Craigo 1894 - 1988 was a member of the Craigo family. Cecil was born on July 23, 1894. Cecil died on May 17, 1988 at 93 years old.
Cecil E Craigo's last known residence is at Charleston, Kanawha County, WV (West Virginia) 25306. THERE MIGHT BE A FATHER AND SON DEAL; NOT SURE.
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In the topic thread on Cecil E. Craigo, it would be neat to collect names associated with him; this would enhance research on Cecil. So here are some, and some later in further posts as time goes.
Harry E. Rollings
Harry A. James
James E. Fink
Leo J. Hand
U. S. Army
Whittier city in California
The Ryan Aeronautical Co. of San Diego of California
Attorneys: Knox & Knox
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Another earlier patent using the hang glider wing was
filed in 1961 with the attention on powering the baby:
Click image for full patent and its claims and drawings: [[Recall that work on such claims is done before filing dates!]]
The group of engineers---because of the leadership of Francis Rogallo in their hearing and association---were understanding the four-boom hang glider wing as utilizing the "stiffened" aspect of the flexible-wing patent of Rogallo, even though stiffened wings of similar structure were non-Rogallo merit; but it is of merit and note that the leadership of Francis Rogallo into stiffening of his core invention of the flexible wing brought about further technology where there was a "Rogallo Revolution" as was noted in media; the vast amount of patents in that period, not all, were referencing the stiffened Rogallo Wing. In our forum we will be covering teachers that did not reference Rogallo, but it can be shown that the flow from the leadership of Francis Rogallo was still what was prompting attention on the four-boom flexible wing, as well as many forms of the pure flexible wing rooted in Francis Rogallo.
Ever to keep in mind how Francis Rogallo demonstrated hang gliding in late 1950s to NASA personnel in a hangar, besides disclosing the application to hang gliding for the limp and stiffened flexible wings. Invention for the application hang gliding was not being claimed, as that would have looked as silly as it does by anyone failing to recognize that the application of "hang gliding" for sailed wings was extant in and before 1800s, and certainly starkly in the last decade of 1800s.
Craigo was working with public-domain technology and rushing to get contracts from paying entities like the U.S. Marines and U.S. Army via tweaked studies and ornamental-appearance tweaks. And at the 1961-December juncture another team was readying versions of the Paresev hang glider for piloted test flying... starting flights Feb 1962. Palmer and Hobson seeded starkly foot-launch hang gliding for the renaissance. Craigo was part of the seeding process by his good works and show and tell. When a tree has grown, sometimes it is difficult or impossible to find the seed around that formed the tree; and the nutrients that fed the tree are melted into the wood. Refuse to let such rich core be stolen by a GH-JD team that got disgruntled for the Bills not paying dues; emotions form some history, but do not establish "invention" valid rights; JD, "tear down that GH wall: that prevents you from having a true story clean!" ... and Reagan might say.