Cross country speeds

[Kiwikkiwik]

I looked at these books and many websites and listed vehicle number of driven axles in the attachment.

Bishop and Ellis, Military Transport of World war I
Bishop and Ellis, Military Transport of World war II
Bishop and Ellis, Tanks and other AFVs of the Blitzkrieg Era
Bishop and Ellis, Tanks and other Armoured Fighting Vehicles 1942-45
Phillip Trewhitt, Armoured Fighting Vehicles
http://www.autogallery.org.ru/gal.htm
http://www.autogallery.org.ru/m/khd.htm
http://www.overvalwagen.com/
https://en.wikipedia.org/wiki/Dodge_...C_WC14.2C_WC40
http://www.lonesentry.com/manuals/ha...equipment.html
http://armoredcars-ww-one.blogspot.c...r-melilla.html
http://balagan.info/vehicles-of-the-spanish-civil-war
http://www.warwheels.net/images/ACJFinal11.pdf

I think any vehicle with an undriven axle (4x2, 6x4) has poor crosscountry performance compared to 4x4, 6x6 or 8x8. I think it would be good to make 4x2 and 6x4 vehicles easily capable of being immobilised on any terrain type except road. And also slower than AWD types off road.
Many references say that heavier armoured cars with an undriven axle where largely road-bound, because of their weight.
Exceptions might be made for vehicles that have a transfer case giving low range gears, are light, have a very short wheelbase, have a freerolling centrally mounted pair of spare wheels, flat bottoms, engine weight over the drive wheels or very big wheels. The USA weasel is largely unboggable.
Vehicles with AWD and AWSteering are as good as tracked?
Three quarter tracks are better off-road than half tracks?
Motorbikes are too fast cross country?
Bicycles speed 6 off road?, No engine.
Opel produced 70000 4x2 and 25000 4x4 Opel blitz trucks.
Your anti-Tank trenchs stop many matildas but very few bren carriers.
Same piture appears for renault and citroen trucks.

Vehicles missing from OObs?
Britain
AEC MatadoR 4X4
Crossley Q 4x4
Humber heavy utility car 4x4
3 ton Bedford 4x4
C15 4x4
C30 4x4
3 ton ford WOT6 4x4
Austin K6 6x4
Albion CX22 6x4
USA
6 ton Cargo FWD 4X4
3/4 ton Dodge 4x4
1/2 ton amphibian Ford GPA 4x4
2&1/2 ton Studebaker 6x6
2&1/2 ton GMC 6x6
2&1/2 GMC COE 6x6
Diamond T 6x6
Germany
Ostradschlepper 4x4
Mercedes Benz L4500 A 4x4
Phanomen Granit 1500 A 4x4

I looked at the Road and crosscountry speeds of tracked vehicles in these books.

Chamberlain and Ellis, British and American Tanks of World War II.
Chamberlain and Milsom, Allied Combat Tanks.
Chamberlain and Ellis, Axis Combat Tanks.
Cappellano and Battistelli, Italian medium tanks 1939-45.
Cappellano and Battistelli, Italian light tanks 1919-45.
Chris Bishop Weapons of World War Two.
Milsom Chambrelain German Armoured cars of World War Two.
Jentz and Doyle, Panzer Tracts.

Road and crosscountry speeds are listed in the .xls attachment.
Max speeds are also theoretical I never drive my car at maximum speed.
Your Road speeds are the Maximum speeds. Max speeds are only possible on straight Autobahns.

Panzer Tracts has Maximum speed, Average road speed, and cross country.
Your vehicle road speeds could be changed from Max to Ave?

PzKw I pzjgr 40,25,10-15
PzKw I A 37.5,20,10-12
PzKw I B 40,25,12-15
PzKw I C 79,65,35
PzKw I F 25,18,14
PzKw II D 55,35,20
LaS 762 42,35,20
Marder II (Sf) 40,30,20
Marder 38t 47,35,20
PzKw III E/F/G 40,25,15
PzKw III H 42,20,15
PzKw III J 40,20,15
JagdPanther 45,25,15
Panther D 55,30-35,20
Panther G 46,30-35,20
Moebelwagon/Wirbelwind 38,25,20
Ostwind 35,25,20
Flakpanzer 38 42,35,20
PzKw I f 25,18,14
Nashorn 40,25,15
JagdPanzer IV F 40,25,15-18
JagdPanzer IV/70 35,25,15-18
JagdPanzer I 40,25,10-15
PanzerJager II 7.62 55,35,18-20
PanzerJager II 7.5 40,30,20
PanzerJager 38 7.62 42,35,20
PanzerJager 38 7.5 47,35,20
PanzerJager Lorraine-Sch35,20,8
PzKw II A/B 40,25,12-15
Sd.Kfz. 10/4-5 65,45,-
18 ton H/T 8.8cm 50,35,-
Sd.Kfz. 221 80,50,-
Sd.Kfz. 222 A 70,40,-
Sd.Kfz. 223 A 75,45,-
Sd.Kfz. 250 65,30-45,-
Sd.Kfz. 251 50,30,10
Sd.Kfz. 7 50,35,-

Looking at the .xls spreadsheet I see that many of your tracked vehicles crosscountry speeds are different to the book crosscountry speeds by as much as twice or as little as half.