davebender
1st Lieutenant
Historical timeline.
1933 to 1935. Sd.Kfz.11 3/4 track prototypes. Size was 6 to 7 tons.
1933. Heer orders development of Panzer I. Target size was 4 to 7 tons.
July 1934. Heer orders development of Panzer II.
Jul 34 to Jun 36. 818 Panzer I ausf A produced. ~38,000 RM each.
1935. First Sd.Kfz.11 3/4 track production model. ~20,000 RM each.
1935. Heer are so pleased with the Sd.Kfz.11 that they order an APC variant. This becomes the Sd.Kfz.251.
1937 to 1940. 1,113 Panzer II ausf C produced. ~50,000 RM each.
1938. Development of Sd.Kfz.11 and Sd.Kfz.251 3/4 tracks taken over by Hanomag.
.....From this point the program advances more rapidly.
1939. First Sd.Kfz.251 3/4 track production model. 22,560 RM.
1940. 337 Sd.Kfz.251 3/4 tracks produced.
1941. 424 Sd.Kfz.251 3/4 tracks produced.
1942. 1,200 Sd.Kfz.251 3/4 tracks produced.
Sd.Kfz.251 3/4 Track.
Crew of 2. Plus an infantry squad or other payload.
~7 tons empty. ~8.5 tons loaded. Depends on variant.
Frontal armor 8mm to 15mm. Armor was increased based on combat experience.
8mm armor on sides and rear.
.....All armor is nicely sloped.
Tracks have torsion bar suspension and run most of the vehicle length. Hence the term "3/4 Track" rather then half track.
.....Relatively low ground pressure and good suspension makes for exceptional cross country mobility.
.....Tracks can steer vehicle even if front tires are shot out. This increases survivability in combat.
- The Sd.Kfz.251 3/4 track can easily carry weapons more powerful then Panzer I and Panzer II main guns.
- With 15mm frontal amor the Sd.Kfz.251 is arguably better protected then early war Panzer I and Panzer II.
- Sd.Kfz.251 suspension is superior to Panzer I and Panzer II suspension. Better ride and superior off road mobility.
- The Sd.Kfz.251 is less expensive then a Panzer I and less then half the price of a Panzer II.
- Overhead protection can be added if desired just as Czechoslovakia did with the OT-810 variant.
So why did Germany build Panzer I and Panzer II light tanks? Give the Sd.Kfz.251 program additional resources and I think they will be rolling off assembly lines in large numbers from 1936 onward. The Sd.Kfz.251/9 should be the initial production version. This carries a 7.5cm/24 main gun with 52 rounds of ammunition. It cannot fight medium tanks but should work fine vs light tanks and for infantry support.
Meanwhile Panzer III and/or Panzer IV programs proceed as they did historically. When larger tanks are available in numbers the Sd.Kfz.251 reverts to being an APC, weapons carrier and tractor for towing the 10.5cm howitzer.
1933 to 1935. Sd.Kfz.11 3/4 track prototypes. Size was 6 to 7 tons.
1933. Heer orders development of Panzer I. Target size was 4 to 7 tons.
July 1934. Heer orders development of Panzer II.
Jul 34 to Jun 36. 818 Panzer I ausf A produced. ~38,000 RM each.
1935. First Sd.Kfz.11 3/4 track production model. ~20,000 RM each.
1935. Heer are so pleased with the Sd.Kfz.11 that they order an APC variant. This becomes the Sd.Kfz.251.
1937 to 1940. 1,113 Panzer II ausf C produced. ~50,000 RM each.
1938. Development of Sd.Kfz.11 and Sd.Kfz.251 3/4 tracks taken over by Hanomag.
.....From this point the program advances more rapidly.
1939. First Sd.Kfz.251 3/4 track production model. 22,560 RM.
1940. 337 Sd.Kfz.251 3/4 tracks produced.
1941. 424 Sd.Kfz.251 3/4 tracks produced.
1942. 1,200 Sd.Kfz.251 3/4 tracks produced.
Sd.Kfz.251 3/4 Track.
Crew of 2. Plus an infantry squad or other payload.
~7 tons empty. ~8.5 tons loaded. Depends on variant.
Frontal armor 8mm to 15mm. Armor was increased based on combat experience.
8mm armor on sides and rear.
.....All armor is nicely sloped.
Tracks have torsion bar suspension and run most of the vehicle length. Hence the term "3/4 Track" rather then half track.
.....Relatively low ground pressure and good suspension makes for exceptional cross country mobility.
.....Tracks can steer vehicle even if front tires are shot out. This increases survivability in combat.
- The Sd.Kfz.251 3/4 track can easily carry weapons more powerful then Panzer I and Panzer II main guns.
- With 15mm frontal amor the Sd.Kfz.251 is arguably better protected then early war Panzer I and Panzer II.
- Sd.Kfz.251 suspension is superior to Panzer I and Panzer II suspension. Better ride and superior off road mobility.
- The Sd.Kfz.251 is less expensive then a Panzer I and less then half the price of a Panzer II.
- Overhead protection can be added if desired just as Czechoslovakia did with the OT-810 variant.
So why did Germany build Panzer I and Panzer II light tanks? Give the Sd.Kfz.251 program additional resources and I think they will be rolling off assembly lines in large numbers from 1936 onward. The Sd.Kfz.251/9 should be the initial production version. This carries a 7.5cm/24 main gun with 52 rounds of ammunition. It cannot fight medium tanks but should work fine vs light tanks and for infantry support.
Meanwhile Panzer III and/or Panzer IV programs proceed as they did historically. When larger tanks are available in numbers the Sd.Kfz.251 reverts to being an APC, weapons carrier and tractor for towing the 10.5cm howitzer.