MEASURING INDEX

Measuring is an absolute necessity in many facets of modelling including testing. Some may be quantitative, while some may be qualitative. These include length, angles, grades, volume, weight, speed, draw bar pull, electrical values and even centering. Some of these may be combined to yield valuable information. Accuracy depends on the application, but in general the closer the better, within reason. The devices and methods used vary widely in cost, complexity and accuracy. The least expensive are your BUILT-INS: eyeball, feel and hearing.

For specific tools see TOOLS INDEX/MEASURING & ALIGNING

ANGLES___square, bevel, precision.
COUPLERS___lengths, head, shank, boxes
COUPLER HEIGHTS___knuckles center, mounting pads, Kadee 711
CURVES___effects, overhang, minimum double track spacing
DRAW BAR PULL___Tractometer
ELECTRICAL___meters, scope
EASEMENTS___effects, spiral, parabolic, double track
GRADES___effects, cars, locos
LAYOUT LEVELS___establishing easily
LOCOMOTIVE TESTING___Analise them to make them run better.
MOTOR PARAMETERS___Torque, RPM, current, power, efficiency.
PHYSICS ___discussion of terms and relationships used.
POWER PACK TESTING___avoid potential danger.
PULSES AND WAVEFORMS___heating effects
ROLLING STOCK HEIGHTS___floors, coupler pads
SPEED___various methods
STANDARDS ___wheel and track gauge, clearance
TEST EQUIPMENT ___general
ESOTERIC TEST EQUIPMENT ___specialized
WEIGHT___effects on tractive effort and grades, optimum, locos, cars
TABLE, WORM--WHEEL ___general
TABLE, COMPOUND GEARS ___general

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