U1 -
powered by older BMWC-2 engine
U2 -
long range night fighterbomber with ETC 501 centerline rack,
2 X 300 liter underwing tanks, MG FF's deleted
U3 -
fighterbomber with ETC 501 centerline rack, MG FF's deleted.
This variant later become F-2
U4 -
reconnaissance fighter with 2 X RB 12/7X9 cameras, MG FF's
deleted
U8 -
long range fighterbomber with ETC 501 centerline rack, 2 X
300 liter underwing tanks, MG FF's deleted, only armament
was 2 X MG 151/20 E. This variant later become G-2.
U9 -
2 planes, experimental plane with heavier armament, 2 X 7.92
mm MG 17's were replaced by 2 X 13 mm MG 131's and MG FF's
were replaced 2 X MG 151/20 E cannons.
U10 -
2 planes, testbed with strenghtened wing for armament testing.
Armament was 2 X MG 17 and 4 X MG 151/20 E cannons.
U11 -
1 plane, attack aircraft with 2 X 30 mm Mk 103 underwing cannon
pods. This later become R3 kit.
U12 -
2 planes, testbed for heavier armament with 2 X MG 17 and
6 X MG 151/20 E's. 2 cannons were in wingroot and 4 on underwing
pods. This later become R1 kit.
U13 -
3 planes, long range fighterbombers with 2 underwing V.Fw
Trg. bombracks for 300 liter droptank or 250 kg bomb. Only
armament was 2 X MG 151/20 E cannons in wingroots. This later
become G-3 variant.
U14 -
2 planes, torpedo bomber adapted for one LT F 5b torpedo in
ETC 501 centerline rack. Only armament was 2 X MG 151/20 E's.
U15 -
experimental plane for carrying Blohm und Voss 246 Hagelhorn
guided glider bomb.
U16 -
proposal for heavier armament where 2 X MG FF's were replaced
by 2 X 30 mm Mk 108 cannons. This become later R2 kit.
U17 -
fighterbomber with ETC 501 centerline rack and 4 X underwing
ETC 50 racks (2 X 2 X 50 kg bombs), MG FF's deleted.
