The Ohka (Cherry Blossom) was a purpose-built, rocket-powered kamikaze plane. Its short range made its missions almost as deadly for the crews of the launching G4M2 'Betty' bombers as for the suicide pilots themselves, but a few US ships were sunk or damaged by Ohka attacks in the spring of 1945. This machine was coded I-13 on the nose when it was captured on Okinawa. It carries the number 10461 below the cockpit which I presume is the serial number.
This research aircraft was built to test the slow speed handling of a sharply swept wing as used on the English Electric Lightning. The wing could be mounted at 50, 60 or 69 degrees of sweep and the tail section with low-set tailplane seen here could be replaced with a T-tail. The undercarriage was not retractable.
The York was a transport derivative of the Lancaster bomber, with a new fuselage and a third tailfin. Both RAF and civil Yorks served on the Berlin Airlift. Plugged windows on York freighters were sometimes repainted on, as seen here.