According to the Wikapedia article dda linked, this is one of only three flying Carvairs remaining. Its primary purpose is to transport passengers and their cars, thus the name "Carvair."
Interesting find, Grayson County Airport near Sherman, TX, is the former Perrin AFB where they trained Air Defense Command interceptor crews in the 1950s and 1960s (F-86Ds, then F-102As). For years there was an active scrapping business there which has tailed off in the last several years.
The DC-9 and DC-8 prototypes I believe were scrapped at Grayson as well.
Thanks, connieUSMC. Accounts like yours make all the hours of scanning runways worthwhile. Well, that and the fact there is usually a cool plane down there somewhere. Really liked the pics!!
http://www.airliners.net/search/photo.search?airlinesearch=Untitled%20%28Gator%20Global%20Flying%20Services%29&distinct_entry=true
http://en.wikipedia.org/wiki/Carvair
Here's another shot of one in flight:
http://www.airliners.net/open.file?id=1100847&WxsIERv=Nivngvba%20Genqref%20NGY-98%20Pneinve&Wm=0&WdsYXMg=Oevgvfu%20Nve%20Sreevrf%20-%20ONS&QtODMg=Fbhguraq%20-%20Ebpusbeq%20%28FRA%20%2F%20RTZP%29&ERDLTkt=HX%20-%20Ratynaq&ktODMp=Nhthfg%203%2C%201974&BP=1&WNEb25u=Nagbavb%20Pnznenfn%20-%20Vorevna%20Fcbggref&xsIERvdWdsY=T-NKNV&MgTUQtODMgKE=&YXMgTUQtODMgKERD=3992&NEb25uZWxs=2006-08-28%2020%3A31%3A36&ODJ9dvCE=&O89Dcjdg=&static=yes&width=1500&height=1034&sok=JURER%20%20%28nvepensg_trarevp%20%3D%20%27Nivngvba%20Genqref%20NGY-98%20Pneinve%27%29%20%20BEQRE%20OL%20cubgb_vq%20QRFP&photo_nr=1&prev_id=&next_id=1085792
The DC-9 and DC-8 prototypes I believe were scrapped at Grayson as well.
http://marinephotos.togetherweserved.com/111633.jpg
http://marinephotos.togetherweserved.com/188162.jpg
http://marinephotos.togetherweserved.com/188163.jpg
It was a fun jump & a good one for my log book!