Page 2 - Combined_78_OCR

<A1 ’11 I.CONOMY MASTER Ai AB UiCix r.’J AZO(iRAI’l 1 1 (.1 H1OMY MA-.II l< |_J , O DI C
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H. Smith Nov. 11, 1967

Air Speed Pressure Range - 0 to 6 inches Hp0.

Pressure Corrections - The -instrument should be adjustable to com­
pensate for atmospheric temperature and pressure variation to read
for standard conditions® An inclinometer made by the Merriam
Instrument Company (Model 44HCL0) may bo suitable for this appli­
cation®

Air Temperature Range - Ambient to 120°F®’

Air Temperature Adjustability * <*1°F®

Air Temperature Distribution - +3 F across the duct#

Humidity Range - Approximately 20 to 1+0% with a range in wet bulb ie ; ■
temperature from 70 to 80°F at a dry bulb temperature of 100°F.
No dehumidification is required.

Humidity Adjustment

Test Chamber.

Type of Tunnel - 51 x 7’ jet type design®

Duct - The duct should be adjustable so it can be placed in front of
3 length car (at least 3 feet)®

Horsepower- Absorption - Horsepower should be proportional to speed
from 0 to &0 Mph• The horsepower at 60 Mph should be 250 Hp® From
60 to 120 Mph the horsepower should be constant at 250 Hp® The
Chassis Rolls Dynamometer does not have to drive-the car to measure
the friction loss of the drive train. A single roll (at each wheel)
is required with a minimum diameter of 4 feet©

Room Static Pressure - The static pressure in the room downstream of
the car should be as close to atmospheric pressure as possible.

Chassis Rolls Speed Range - 0 to 120 Mphe There should be provision so
that the duct air speed can be synchronised with the rolls speed or
operated independent of he rolls speed© Fine adjustment is needed*
Radiant Light'Bank - To provide a 0 1 £ 3 load equivalent to a desert heat
load®

Sp^od Control (Roll a ) - of desired level®

Speed Measurement (Rollo) - of reading®

Horsepower Measurement - *1% of roadin bD ©