Aircraft Systems
POWER PLANT
AL250 Flight Manual
MEP
6-2-3 ENGINE INSTRUMENTS
MANIFOLD PRESSURE/FUEL FLOW INDICATOR
This is a dual instrument.
On the left-hand side it shows t he manifold pressure in inches of Mercury. The scale
is graduated in increments of 1 from 10 to 35 with numerals at 10, 15, 20, 25, 30
and 35. There are two pointers, one marked L for the left engine, one marked R for
the right engine.
On the right-hand side it shows the fuel flow in US gallons per hour. The scale is
graduated in increments of 2 from 2 to 32 with numerals at 2, 10, 14, 18, 22, 26 and
30. The minimum red radial line is at 2 gal/hr, the maximum red radial line at 28.1
gal/hr. The green arc goes from 2 to 28.1. There are two pointers, one marked L for
the left engine, one marked R for the right engine.
Figure 6.12: Manifold Pressure/Fuel Flow Indicator
Rev. 1.8 © 2021 ALSIM - All Rights Reserved 6-15
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