february2023 - 34
Product Profile
A Passenger Stairway
for Larger Aircraft
Stinar's SPS-3518 reaches boarding doors of the A300 to the B777.
BY REBECCA KANABLE
A
lready having a smaller
model of chassis-mounted
boarding stairs in its portfolio,
the design for Stinar's SPS-3518
model was inspired by customer
requests for stairs that could service
larger aircraft.
Stinar's SPS-3518 Passenger Stairway
reaches boarding doors with sill heights
of 96 to 228 inches. That means it's compatible
with aircraft the size of the A300,
A320, A340 and B777 and the lower doors
of the A380, offering a passenger boarding
solution at areas other than terminals
equipped with jet bridges.
" It's functional in that it opens up services
that otherwise may not have been
attainable with the current facilities
operators have now, " says Stinar CEO
Craig Kruckeberg. " A mobile boarding
stair has many benefits when it comes to
air travel. "
The SPS-3518 Passenger Stairway uses
a hydraulic lift system operated by the
commercial chassis PTO.
The telescoping stairway consists
of two stair sections supported by an
A-frame with an integral ratcheting
system. The lower stair section is stationary
while the upper stair section
telescopes into position and features
an ergonomic front-boarding deck with
extension platform, swivel bumper and
proximity safety sensors.
Controls are located in the chassis
cab and on the boarding platform. Inside
the cabin, controls are used to raise and
lower the stairs, adjust the A-frame, and
raise and lower the stabilizers at the
front, middle and rear of the chassis.
Lowering the A-frame also requires
releasing the A-frame lock release
switch. This actuates an electric solenoid,
which releases the A-frame ratchet
-a mechanical lock that prevents the
A-frame from being lowered unless the
switch is engaged.
At the top of the stairs, on the boarding
platform, controls adjust the A-frame
and stairs as well as extend the platform,
The Stinar
Passenger
Stairway, Model
SPS-3518, is
a hydraulically
operated, twosection
elevating
stairway that is
supported by
a telescoping
A-frame. The
lower stairs
section is
stationary, while
the upper stairs
section includes
the platform.
which is 83 inches long (133 inches long
with the landing) and 72 inches wide.
Attached to the underside of the platform,
a camera allows adjustments of
the platform to the correct door height of
the aircraft. The camera's video can be
viewed from a monitor inside the cab.
Safety features include cab warning
lights that indicate stabilizer position, a
backup camera and an amber flashing
beacon. What's more, in the event that
the hydraulic system fails, there's an
emergency power pack. If the emergency
power pack fails, there's an emergency
hand pump.
" Numerous safety measures have been
added in the form of proximity sensors,
safety alarms, checks and integral measures
that must be done for the stair to
operate as designed, " Kruckeberg says.
" We provide onsite product training
for each new unit purchased and will
come and train new employees on older
units in the field for customers looking
for refresher training. We've gone to great
lengths to make assure all equipment,
planes, operators' and customers' safety
is priority number one for Stinar units. "
Other key features, according to
Kruckeberg, include lock valves on all
hydraulic cylinders, an integrated ratchet
system, multi-functional stabilizers with
pressure sensors and heavy-duty OEM
cab/chassis capable of supporting the
boarding unit and the passengers on the
boarding system. After the SPS-3518 was
introduced in February 1984, customers
made requests for options. Today many
of those requests now come standard.
" We've taken most of those options
and made them standard, expanded on
them some, added additional features
and offer a fully loaded passenger boarding
stair, " Kruckeberg says.
34 || Ground Support Worldwide || February 2023
STINAR
february2023
Table of Contents for the Digital Edition of february2023
Editor's Note: Fueling Greener Flights and Ground Ops
Business Buzz
Clearing the Runway for SAF in Asia Pacific
2023 State of the Industry
Safety Standards for Shipping Lithium Batteries
Tips for Turnaround Cleans
Optimize Airport Efficiency and Safety when Winter Weather Strikes
A Passenger Stairway for Larger Aircraft
Product Hangar
Spotlight on: Deigo Alonso Tabares
february2023 - 1
february2023 - 2
february2023 - 3
february2023 - 4
february2023 - 5
february2023 - 6
february2023 - 7
february2023 - Editor's Note: Fueling Greener Flights and Ground Ops
february2023 - Business Buzz
february2023 - 10
february2023 - 11
february2023 - Clearing the Runway for SAF in Asia Pacific
february2023 - 13
february2023 - 2023 State of the Industry
february2023 - 15
february2023 - 16
february2023 - 17
february2023 - 18
february2023 - 19
february2023 - 20
february2023 - 21
february2023 - 22
february2023 - 23
february2023 - Safety Standards for Shipping Lithium Batteries
february2023 - 25
february2023 - 26
february2023 - 27
february2023 - Tips for Turnaround Cleans
february2023 - 29
february2023 - 30
february2023 - Optimize Airport Efficiency and Safety when Winter Weather Strikes
february2023 - 32
february2023 - 33
february2023 - A Passenger Stairway for Larger Aircraft
february2023 - 35
february2023 - Product Hangar
february2023 - 37
february2023 - 38
february2023 - 39
february2023 - 40
february2023 - 41
february2023 - Spotlight on: Deigo Alonso Tabares
february2023 - 43
february2023 - 44
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