WM-21 was a refined version of the Fokker C.V, The Weiss WM 21 Solyom was flown by the Hungarians on light reconnaissance duties. A total of 128 were built.
Powerplant: 870hp Weiss W M K-14 radial piston
Performance: Max Speed 199 mph, service ceiling 26,245ft, range 373 miles
Weight: Empty 5,401lbs, max 7,606lbs
Armament: 2 x 7.92mm MG FF amnd 1 in a flexible mount in the rear cockpit + light bombs on underwing racks.
from The Hamlyn Concise Guide to Axis Aircraft of World War II by David Mondey