The one big seaplane must be a Sikorsky JRS-1. Here is a link to a photo from their website.
http://airandspace.si.edu/explore-and-learn/multimedia/detail.cfm?id=4317
I think the one smaller jet fighter might be the Japanese version of the Me262? The Nakajima Kikka, I beleive??
But I am not sure. There was nothing posted there about it.
Spence




