Bäumer IV "Sausewind"
Type B IV  2-seated sportplane developed from the B II B IVa 2-seater developed for record attempts
Enginen        1 Wright L4 1 Wright L4
Dimensions Length 6.25 m, span 9.15 m,  wing area 11.20 m2,  aspect ratio 7.5 Length 6.25 m, span 9.00 m, wing area 11.20 m2, aspect ratio 7.25
Weights Empty 300 kg, fuel 106 kg, oil 4 kg, crew 150 kg, luggage 15 kg, load 275 kg, flying weight 575 kg, wing loading 51.43 kg/m2 Empty  295 kg, fuel 106 kg, oil 4 4 kg, crew 150 kg, luggage 45 kg, load 305 kg, flying weight 600 kg, wing loading 54 kg/m2
Performance   Max. speed 210 km/h, cruising speed 180 km/h, climb to 1000 m 6 min., climb 2.8 m/sec., service ceiling 5400 m, range 1200 km Max. speed 230 km/h, cruising speed 180 km/h,    service ceiling 6000 m, range 1200 km, max. range 2000 km