FAA Approved Airplane Flight Manual Supplement

190-00716-02 Rev. 3 Hawker Beechcraft King Air 300/300LW
FAA APPROVED Page 19 of 167
POWER PLANT LIMITATIONS AND INDICATOR MARKINGS
No changes were made to the airplane’s engine operating limits. The engine gauges are marked as
shown in the following table. Refer to the latest Airplane Flight Manual or appropriate Airplane Flight
Manual Supplement for engine and propeller limitations.
NOTE
The gauge indicator pointer and digital display will flash inverse red/white video for 5
seconds, then remain steady red, if the indicated engine parameter exceeds its
established limit. The gauge indicator digital display will change to yellow for “caution”
conditions.
OPERATING
PARAMETER
PT6A-60A ENGINES COLOR MARKINGS & RANGES
Red Arc/Radial
(Minimum Limit)
Green Arc
(Normal)
Yellow Arc
(Caution)
Red Arc/Radial
(Maximum Limit)
Torquemeter (%) -- 0 to 100 (a) -- 100 (b)(c)(d)
ITT (ºC) -- 400 to 820 (e) -- 820 (f)(g)(h)
Prop N
2
(RPM) -- 1050 to 1700 (i) -- 1700 (j)(k)(l)
Gas Generator N
1
(%) -- 62 to 104 -- 104
Oil Temperature. (ºC) (k) -- 0 to 99 (m) -- 99 (m)
Oil Pressure (psi) (j) 60 (n) 90 to 135 (n) 60 to 90 (n) 135 (n)
Footnotes:
(a) Torque limit applies within range of 1000 - 1700 propeller RPM (N
2
). Below 1000 RPM, torque is
limited to 62%.
(b) Torque indications between 102% and 156% are time limited to 20 seconds.
(c) To account for power setting accuracy and steady state fluctuations, inadvertent torque excursions up
to 102% is time limited to 7 minutes.
(d) Within transient torque values, the torque indicator will display green digits and a white pointer. After
5 seconds, the digits will flash alternating red and white background with a flashing red pointer for 5
seconds. After 5 seconds of flashing, the indication is steady white digits/red background and the
pointer is red. Above 156% torque, the indication immediately begins flashing for 5 seconds before
displaying steady white digits on a red background and a red pointer.
(e) Maximum ITT during idle is 750ºC. High ITT at ground idle may be corrected by reducing accessory
load and/or increasing N
1
RPM.
(f) ITT indication between 820ºC and 850ºC is time limited to 20 seconds.
(g) ITT starting limit at 1000ºC (red triangle) is time limited to 5 seconds.
(h) Within transient ITT values, the ITT indicator will display green digits and a white pointer. After 20
seconds between 820
°
C and 850
°
C (or above 1000°C for more than 5 seconds in Starting Mode), the
ITT digital indication will flash alternating red and white background with a flashing red pointer for 5
seconds. After 5 seconds of flashing, the indication is steady white digits/red background and the
pointer is red. In Normal Mode while above 850
°
C, the indication immediately begins flashing for 5
seconds before displaying steady white digits on a red background and a red pointer.
(i) Maximum reverse propeller operation is limited to 1650 RPM N
2
speed.
(j) Propeller (N
2
) speeds between 1735 RPM and 1870 RPM are time limited to 20 seconds.