Author Topic: Difference between S11b and a 101  (Read 4195 times)

Offline Mick

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Difference between S11b and a 101
« on: February 24, 2015, 06:42:30 PM »
Hi Diana,

Another lesson please. What is the difference between a SIIB and a 101. . . Again I apologise for my stupidity.

Cheers,

Mick

Offline Mick_Marsh

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Re: Difference between S11b and a 101
« Reply #1 on: February 24, 2015, 08:16:53 PM »
Totally different vehicle. Different chassis. Different motor, gearbox and drivetrain.
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Offline Phoenix

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Re: Difference between S11b and a 101
« Reply #2 on: February 24, 2015, 08:51:45 PM »
The 2a FC and 2B Forward Control models were developments of the regular land rover models.

The 101 FC was a military only model (like the lightweights) that was designed to town artillery and was a new desig from the ground up, although many parts found their way onto the range rover, or is that the other way around?
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Offline isuzutoo-eh

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Re: Difference between S11b and a 101
« Reply #3 on: February 24, 2015, 09:04:09 PM »
One is a regular Series Landy that collided with the ugly tree, knocked said tree down, drove over it and in later conversation was noted that the tree was prettier than the FC Landy, the other was designed by a committee of engineers.


 I would one day like to add a 109 or 110 FC to my fleet...
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Offline Diana Alan

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Re: Difference between S11b and a 101
« Reply #4 on: February 24, 2015, 11:06:05 PM »
Hi Diana,

Another lesson please. What is the difference between a SIIB and a 101. . . Again I apologise for my stupidity.

Cheers,

Mick
Hi Mick

We'll ignore the lack of clarity above.

There are actually three production Land Rover forward control models.

Series IIa 109 Forward Control production commenced for the 1962 model



The SIIA is basically a SIIA Oz military chassis with a second "C" section chassis sat on top with the front protruding forward of the dumbirons, a standard 4 cyl firewall with snub nose bodywork to hold the radiator and cover the firewall and steering.  The original diffs were exactly the same SIAa Rover assemblies which proved insufficient for the additional weight, so an ENV replaced initially the rear only but shortly after both front and rear. 

The engine is in the usual position and the 2.6 litre six was added in 1963 four years before the normal control LR.

Gearbox is the same housing and main gearbox gearsets, but has a longer mainshaft and drives an all helical gear low ratio transfer box (IIRC 1.54:1) internally it looks similar to an LT230 with 3 gears on the intermediate shaft cluster.  It is operated by a complicated mechanical remote shift mechanism.

There is debate whether the Oz military 109 chassis or the SIIA FC chassis was designed first although it is possible they were designed at the same time.

With the high centre of gravity and standard SIIA track they were prone to falling over on side slopes and they were very slow because of the low ratio box.  About 5000 were produced



Series IIB 110 (109 3/4") production started for the 1966 model



The SIIB is 3/4" longer wheelbase to clear the 6cyl sump and 4"wider track.  The front axle has an anti-roll bar and the rear assembly is spring over with higher chassis mounts and the springs set further out from the chassis.  The gear selector was a simple replicator bar over the top of the engine.

The last South African build SIIB had Salisbury axle assemblies front and rear.

These were more stable but still slow on the highway.

The 101 was initially prototyped in the late 60s early 70s using the SIIB gearbox, 6cly engine and ENV axle assemblies.  These were soon replaced with the Range Rover V8 engine, LT95 Range Rover transmission and Salisbury axle assemblies.  The chassis is basically straight rails with long parabolic leaf springs.

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Offline Diana Alan

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Re: Difference between S11b and a 101
« Reply #5 on: February 24, 2015, 11:13:06 PM »


Others know far more than I about the 101.
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Offline fc101

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Re: Difference between S11b and a 101
« Reply #6 on: February 24, 2015, 11:21:56 PM »
In addition - as you can see the series 2 FC is butt ugly where the 101 is a thing of beauty ::).

Offline Diana Alan

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Re: Difference between S11b and a 101
« Reply #7 on: February 24, 2015, 11:23:52 PM »
That particular SIIB is rather sad these days as it's lost it's axle assemblies in a workshop project gone bad.
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Offline Magellan

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Re: Difference between S11b and a 101
« Reply #8 on: May 08, 2015, 11:12:05 PM »
Can I say that the SIIA FC is far more attractive than the IIB, simply because of the placement of the headlights. Usually the designers get it right first time around e.g. Series 1 Discovery, E Type Jag v XJS, Porsche 356 etc etc

Daryl
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