STEMME S12, Руководство по обслуживанию

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DOCUMENT NUMBER:
L500-912.820 ISSUE JUL 20, 2016
AMENDMENT: 00
DATE: --
CHAPTER- PAGE 6-5
MAINTENANCE MANUAL STEMME S12
If a revision proved the aircraft to be “tail-heavy“, the minimum load m
P, min
for an unchanged
empty weight m
leer
and CG position x
leer
can alternatively be determined by following formula:
m
P, min
= m
leer
x
leer
- x
Flug, h
x
Flug, h
- x
P, h
With: Aftmost aft in-flight CG: x
flug,h
= 420 mm / 16.54 in (aft of RP)
Aftmost aft seating (CG) position
of pilot:
x
P,h
= - 650 mm / 25.54 in (in front of RP)
The certified limits of the empty weight CG as a function of minimum load can be derived from
the following figure »6.3.b« and »6.3.c«. Two different minimum seat loads depending on the
loading conditions have to be determined and noted on the »Weight of Balance Report« (Annex
D), the weighing logsheet in the S12 Aircraft Flight Manual section »6.3« and the placards on the
center console:
• Full trim water ballast and luggage compartment - takes into account that the tail water
ballast tank and the luggage compartment in the tail-boom are fully loaded correspond-
ing to their limitations. This “worst case” could lead values higher than the maximum load
and should draw the pilot’s attention to perform an operating weight and CG calculation
before flight.
• Empty trim water ballast and luggage compartment - expect no loading in the water
ballast tank and the luggage compartment in the tail-boom. This value could be used by
the pilot if this loading case is ensure before flight.
If maximum or minimum loads for the different compartments and seats are observed and the
empty weight CG is within limits, the in-flight aircraft CG is always within certified limits. This
means, that the load in the seats must equal or be higher than the minimum load, whereas total
cockpit load (pilot + co-pilot + para baggage) must be below the specified maximum load.
The difference of total cockpit load and the maximum load must at least allow for a fuel load
required for a 30 minutes flight at maximum continuous power (13.6 l / 3.6 US gal. / 3 Imp.gal.,
10 kg / 22.05 lb).