From: David Cole (DavidCole@tk7.net)
Date: Sun Feb 01 2004 - 07:15:48 PST
Too bad that somehow reverse power can't be applied to the wheels on one
side - aka skid loader. Then the duece might be able to turn in it's own
length! That would be something to see.
Individual side braking makes a lot of sense for off road use. I almost
cannot drive my Case tricyle tractor in the snow without using the turning
brakes.
Driving my 5 ton dump with a full load of rock in the back really screws
with the turning radius. It just doesn't want to turn at all.
Dave
On Sat, 31 Jan 2004 11:03:03 -0500, Bjorn Brandstedt
<super_deuce@hotmail.com> wrote:
> Hi Marc,
>
> Regarding the turning radius on the deuce, driving off-road on a slippery
> surface made me try to think of ways to improve things.
>
> Often in mud it was impossible to take a turn without backing up and
> making a second or third attempt. With traction like a farm tractor, the
> deuce just went straight, “snowplowing”. However, the farm tractor can
> turn in mud simply by braking one of the rear wheels.
>
> A related problem was encountered in snow, about a foot deep, I would hit
> something which caused the steering wheel turn, busting fingers in the
> process and since the steering was (is) so ineffective under these
> conditions, I lost track of the position of the front wheels. One time I
> actually had to stop, walk out and do a visual to see if in fact the
> wheels were pointing straight or not. As it were, they were not, the
> truck just drove straight on with the front wheels at an angle. This is
> especially bad when it is loaded.
>
> With my particular configuration (with a knuckleboom crane) I can improve
> the steering on slippery surfaces or snow, by turning the crane forward
> adding about 1,500 lb to the front axle loading. It is, however, not a
> very practical solution.
> My experiments with braking one side of the boggie in the rear are not
> very conclusive because of the number of variables involved, but initial
> tests showed that the turning circle (curb-curb) was reduced by about 10
> feet on gravel (dual tires). Yes, I have separated the brake lines to the
> rear wheels and with a brake lock one side can be locked up, although the
> wheels never did “lock”, they just slowed down during initial testing.
> More work to be done here...
>
> Installing singles in the rear improved the situation also. A reduction
> of about 5 feet on preliminary tests with no other modifications.
>
> Other experiments will include installing CV-joints in the front to keep
> the wheels turning at a constant rate when angled sharply (the deuce has
> regular U-joints in the front). “Sharply” is a relative term here, since
> the steering angle on my vehicle is no more than 23-25 degrees.
>
> Also, installing larger wheels in the front to improve drive in the
> direction of turning, in effect changing the gear ratio to the front
> wheels. That’s right, with this arrangement, all-wheel drive must only be
> engaged on slippery surface!
>
> Enough about this for now.
>
> Have a great day!
>
> Bjorn
> MVPA 19212
> Meadows of Dan, Virginia (five degrees F this morning)
>
>
>
>> From: Marc Strangfeld <curlyjoe98@yahoo.com>
>> To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
>> Subject: Re: [MV] M35 modifications
>> Date: Fri, 30 Jan 2004 18:35:03 -0800 (PST)
>>
>> Bjorn
>>
>> As long as it is still slow, underpowered, noisy, and
>> rough riding I would call it a classic military truck.
>>
>>
>> Marc
>>
>>
>> PS Anyone who has read Military Vehicles Magazine is
>> most likely aware of your articles about various mods
>> and experiments to your deuce. I'm quite sure
>> everyone appreciates them (even the
>> reenactors/purists). Keep'em coming
>>
>> PPS How did it turn with one side locked up?
>>
>>
>>
>>
>>
>>
>>
>>
>> --- Bjorn Brandstedt <super_deuce@hotmail.com> wrote:
>> > Friends,
>> >
>> > A reflection(?) on "Ode to the Deuce";
>> >
>> > The classic 2-1/2 ton military 6x6, what exactly is
>> > it? The way it was
>> > delivered from factory or the way it was modified
>> > for a particular
>> > application?
>> >
>> > US Army PS magazine is loaded with small mods and
>> > corrections pertaining to
>> > the deuce. The TM’s contain lots and lots of
>> > variants and not all manuals
>> > are the same. What color is “right” for the deuce?
>> > My Vietnam (1968) era
>> > deuce came from the USMC with a non standard 4-color
>> > MERDC camo pattern
>> > (forest green, earth yellow, sand and black). It
>> > came with partially
>> > installed deep water fording kit and a 1970’s
>> > voltage regulator.
>> > The vehicle was built for a long life, which would
>> > inevitable lead to
>> > changes. I don’t think that there is anything
>> > incorrect and destructive to
>> > the character of the deuce to make changes that will
>> > help it run or look a
>> > little better, be it off or on the road.
>> >
>> > Did the factory delivered deuce have a driver’s seat
>> > from a 5-ton truck? Was
>> > the personnel heater installed without a circuit
>> > breaker, was the fuel
>> > density compensator bypassed?
>> >
>> > The following are some of the things I have done to
>> > my M49A2C w/winch deuce
>> > (not one of which could not be reversed if so
>> > desired):
>> >
>> > 1)Remove 1,200 gallon tank
>> >
>> > 2)Remove winch
>> >
>> > 3)Mount 1972 HIAB knuckleboom crane (Army done that)
>> >
>> > 4)New truck bed. Ideally one from a M756 pipeline
>> > construction variant, but
>> > since I couldn’t find one, built my own.
>> >
>> > 5)Back-up lights
>> >
>> > 6)Marker lights
>> >
>> > 7)Turn signal lights (Army done that)
>> >
>> > 8)Turn signal buzzer (same as low air pressure
>> > buzzer)
>> >
>> > 9)Converted to single 1100x20 tires along with
>> > appropriate speedometer
>> > adapter (Army done that) and narrower truck bed (was
>> > 96, now 89 inches).
>> >
>> > 10)Separated the vent from the air-hydraulic
>> > cylinder from the fuel and
>> > master cylinder vents (Army done that).
>> >
>> > 11)Installed a “central venting system” for axles
>> > and transfer case (Army
>> > done that on newer vehicles)
>> >
>> > 12)Installed a crankcase breather filter (Army
>> > should have done that,
>> > simplifies driving in water up to about 4 feet
>> > deep). Also reduces air
>> > pollution.
>> >
>> > 13)Installed elbow on engine air intake “mushroom”
>> > (Army done that, I think)
>> >
>> > 14)Installed alcohol evaporator (Army done that)
>> >
>> > 15)Installed flame heater monitoring device (Army
>> > should have done that
>> > considering the consequences of a non-working flame
>> > heater)
>> >
>> > 16)Installed “load dump” protection on 25Amp voltage
>> > regulator (Army should
>> > have done that, considering the consequences of the
>> > damage to installed
>> > electronic equipment possible from such a condition)
>> >
>> > 17)Installed turbo on naturally aspirated engine
>> > (Army done that by
>> > replacing engine)
>> >
>> > 18)Installed pyrometer to monitor exhaust
>> > temperature
>> >
>> > 19)Installed intake manifold pressure sensor to
>> > monitor “boost pressure”
>> >
>> > 20)Experimented with separate brake lines to the
>> > rear wheels to reduce
>> > turning radius by braking one side. (used electric
>> > brake lock from 5-ton
>> > wrecker to lock rear wheels on one side).
>> >
>> > 21)Experimented with turn signal flasher that has
>> > filament pre heater, short
>> > circuit protection and/or electo mechanical
>> > switching.
>> >
>> > 22)Flood lights (Army done that).
>> > My to-do list has many more items, mostly little
>> > things, remember that the
>> > Army modified the deuce to include a new engine,
>> > transmission, CTIS and much
>> > more.
>> >
>> > It is very hard to resist modifying this vehicle for
>> > some reason…
>> > It’s like a giant erector set for big kids to play
>> > with.
>> >
>> > The question still stands, what is a classic
>> > military 2-1/2 ton truck? How
>> > much or how little is it modified? What about the
>> > ‘nam gun trucks? Lots of
>> > mods there.
>> >
>> > Leave myself wide open on this one, but that’s OK,
>> > fire away!
>> > Have a great day!
>> > Bjorn
>> > Meadows of Dan, Virginia
>> >
>> >
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-- Dave
This archive was generated by hypermail 2.1.4 : Sat May 07 2005 - 20:28:29 PDT