Here are a few warbirds and transports, I usually shoot props in shutter priority with appropriate +/- EV dialed in to compensate for the exposure diffence between subject and background. The ultimate goal for me is always 'full circle blur' but I do vary the amount to a variation as it's not everyone's 'cup of tea'
I frequently shoot at 1/30th 1/60th and 1/80 with the 600mmf4 IS, generally with IS off but not always.
Douglas AD-4NA Skyraider 124143 'RM-205' F-AZDP by Nigel Blake, on Flickr
IMAGE LINK: http://www.flickr.com/photos/nigelblake/5326485420/
North American P-51D Mustang 44-84847 "CY-D" NX251RJ "Miss Velma" by Nigel Blake, on Flickr
IMAGE LINK: http://www.flickr.com/photos/nigelblake/3716763003/
North American P-51 "Nooky Booky IV" by Nigel Blake, on Flickr
IMAGE LINK: http://www.flickr.com/photos/nigelblake/6204228083/
P51 Mustang "Jumpin Jacques" G-SIJJ by Nigel Blake, on Flickr
IMAGE LINK: http://www.flickr.com/photos/nigelblake/5379659481/
Lockheed Martin C5 (C-130J) Hercules ZH884 by Nigel Blake, on Flickr
IMAGE LINK: http://www.flickr.com/photos/nigelblake/6111983768/
North American T-28A Fennec N14113 by Nigel Blake, on Flickr
There are thousands more images on my Flickr