1930 Cadillac Brochure Front Cover - GM Heritage Center

Page 1
INTRODUCTION
These specifications of General Motors oars were originally conpiled
to furnish a convenient manual of useful information to the
personnel of the Research Laboratories. To insure the accuracy of
the data each Division was asked to supply the information on its
products. In return for this the chief engineer or whoever he
might designate has been furnished xrith a copy of the conplete data.
The books have a limited distribution and the names of all persons
holding copies are given on page 25.
While every precaution is taken that errors do cot occur, it sometimes
happens that they do creep in. Necr sheets are checked against
the original data from the Divisions and the sheets are looked over
for any apparent errors in the originals. Except for these checks,
the book contains the original values given by the Divisions.
It is hoped that curves run undor conditions set up in the General
Motors Engine Tost Codo can hereafter he included and that data
from the different engineering departments will then bo directly
comparable.
A good supply of current sheet3 is nlrrays kept on hand and a
limited supply of old ones. Consequently any reasonable request
for sheets whether old or new can be supplied.
If any errors or changes in the spec if leal ions are found, communicate
with tho Technical Data Section cf tho Rosoarcb Laboratories,
Detroit.