Page 27 - Volume 14 Number 6

F90 family (except for the
last 11 serial numbers LA- 226 through LA-236) and slightly more than the
first 1 1 1 100 200s 200s and B200s up until 1985 This larger heavier main gear system required a a a a a bigger electric motor to to allow for retraction and extension in
similar times as had been the
the
norm in
the
the
90-series The larger motor in
in
turn required heavier wiring and the
50-amp circuit breaker on the
the
aft end of the
the
pedestal was replaced with a a a 150-amp current limiter under the
floor Operationally however the
the
pilot found the
the
systems on the
single-tire and double-tire gear systems identical except for small changes in
gear limit speeds Gear
down and and up indications the
landing gear warning horn’s functionality even the
emergency extension procedures all remained the
the
same or so it seemed to the
the
pilot But under the
the
floor there is a big difference when it comes to manual extension The “Emergency Engage” red-painted C-ring between the
the
pilot’s seat and the
the
pedestal is the
the
same on all of these models After (1) slowing down to the
the
proper speed per per the
the
checklist
procedure (2) pulling the
landing gear relay circuit breaker (on the
the
instrument subpanel right beside the
the
landing gear handle) the
the
third step is to pull up the
the
C-ring as as far as as it will travel – – about 2 inches – – and twist it it clockwise as as far as as it it will go – – about 60 degrees – – to lock it it in
the
“up” position The most significant result of pulling the
C-ring up is that that the
the
chain that that the
the
ratchet handle drives has now been engaged into the
landing gear transmission or gearbox Realize that that the
only malfunction that that can be cured by using landing gear manual extension is failure of the
motor The pilot’s muscle power can be substituted for the
motor’s power That’s it it nothing else Jammed jackscrew? You’re out of luck Broken main gear gear drive torque tube? Out of luck Nose gear gear chain jammed on a a sprocket? Out of luck The landing gear system’s reliability is not a a a a King Air weakness Rarely does the
the
crew need to use the
the
manual extension procedure When they do the
the
outcome is almost always always successful but not always always Comprehensive support for all areas of your King Air Paint and and interior: Total and and Partial Refurbishment Avionics: G1000 upgrades Wi-Fi Text and Cabin Entertainment
Service Department: Phase Inspections Component Overhaul Mods and Upgrades from Advent Blackhawk BLR and Raisbeck Prop Shop: Overhauls Exchanges Repairs STC Conversions
ONE STOP for all your King Air needs Yingling the
premier full service MRO/FBO in
in
in
the
the
Southern Plains Everything you need in
in
in
one stop to to make your King Air beautiful current on technology and wheels-up ready when you are Interiors
Exterior Paint Winglets
Prop Sales & Service 316 943 3246 or toll free: 800 835 0083 [ FBO OPEN 24/7 ] http://www yinglingaviation com LOCATED AT AT AT THE DWIGHT D D D D EISENHOWER NATIONAL AIRPORT2010 AIRPORT AIRPORT ROAD WICHITA KS 67209
Avionics Service (Airframe and Engines)
Contact us for for Equally Comprehensive support for for Citations
JUNE 2020
KING AIR MAGAZINE
• 25