Bäumer B I Roter Vogel
Type B I
Engine 1 Douglas 2 cylinder motorcycle engine  346 cm3 driving through a 1 m shaft a 2-bladed wooden propeller Ø 1.25 m. Fuel 27 l, fuel consumption 3.5 l/h
Dimensions Length 5.27 m,  span 10.00 m, wing area 10.00 m2,  aspect ratio 10.0
Weights Empty 125 kg, oil 1 kg, crew 99 kg, load 110 kg, flying weight 235 kg, wing loading 23.5 kg/m2
Performance Max. speed 115 km/h, cruising speed 100 km/h, climb to 1000 m 24 min, service ceiling 3000 m