----- Original Message -----
From: proto48er
To: STMFC@...
Sent: 11/26/2007 7:22:25 PM
Subject: [STMFC] Re: MKT single sheathed boxcar details


--- In STMFC@..., "proto48er" <atkott@...> wrote:

Mark -

The b-end details are similar to the 76001-77500 series cars.

The underframe for the 76001-77500 series has a straight

centersill,

two crossbearers (one located at each door post), one crossmember
between the two crossbearers (at the center of the car), and two

each

crossmembers between each crossbearer and each body bolster. The

air

tank is located to the right of the door, if the b-end of the car

is

to your left. It is mounted on the crossbearer (the left side) and
the first crossmember toward the body bolster (the right side).

The

valve is located directly across from it on the other side of the

car.

The underframe for the 77501-78000 series has a fishbelly

centersill,

two crossbearers located two feet toward the ends of the car from

the

door posts (ie., four feet further apart from the ones in the above
series), two crossmembers located equally spaced between the two
crossbearers (ie., no crossmember in the center of the car), and

only

one each crossmember between each crossbearer and each body

bolster.

The air tank is located (almost) centered on the **left** door post
{again, the b-end of the car is to the left). It is also mounted

on

the crossbearer (the right side) and the crossmember (the left

side)

toward the center of the car. The valve is located directly across
from it (centered on the left door post, if you are standing on the
other side of the car and the b-end is to your right).

Above, a "crossbearer" is a pan with a steel plate riveted to its
bottom. A "crossmember" is just a plain channel shape (a pan also,
but rectangular).

Trucks are mounted on 5'-6" center-to-striker.

Short answer: No, the brake placement between the two car series is
slightly different (by two feet)!

Hope this helps! (All from actual prototype meas. plus M-K-T plans
for each car series).

A.T. Kott

My mistake - the air tank on this series is located almost centered
on the **RIGHT** door post, if viewed with the b-end to the left!
Too hard to describe without drawing it!

Also, Tom, I did not see your post when making my two.

A.T. Kott