Vaisala DKE200 User Manual

Frangible Lattice Mast DKE200

Features

• Meets ICAO and FAA standards

• Built‑in frangibility

• Fully impact tested

• Transparent to electromagnetic
radiation – no interference with
airport communication
equipment

• Optional passive air terminal
protects sensors and other
equipment

• Composite structure provides
superior air terminal insulation

Vaisala Frangible Lattice Mast DKE200 is a lightweight and rigid mast especially
suited for aviation use. The mast complies with ICAO and FAA standards and is
compatible with all Vaisala weather stations.

Fully compliant with safety

specifications

The DKE200 mast materials comply with
aviation safety specifications and the
mast is impact tested according to the
ICAO Aerodrome Design Manual Part 6,
chapter 5 and FAA AC 150/5345‑45C,
section 4.

The DKE200 mast is rigid and strong but
lightweight, and its composite structure
makes it brittle in case of sudden impact.
In collision, the mast breaks at the point
of impact without causing hazard to the
aircraft.

Robust and corrosion-resistant
build

The DKE200 mast withstands wind
speeds of up to 60 m/s (134 mph). The
composite materials resist fatigue,
corrosion, and other eects of weather
and temperature, making the masts also
suitable for marine and other corroding
environments.

As composite materials do not distort
electromagnetic signals of the airport
communications equipment, the need to
calibrate instrument landing system (ILS)
antennas is reduced.

The DKE200 mast is maintenance free.

Custom options for all kinds of
airports

The mast is supplied with a bottom
hinge, allowing maintenance from a
crane truck without lowering the mast. A
center-hinged version is also available,
allowing the mast to be lowered by a
single maintenance worker for easy
maintenance of the sensors and other
equipment. Note that the number of
persons needed depends on local safety
regulations.

An optional passive air terminal is
available for protecting sensors and
other equipment. The composite
materials of the mast provide superior air
terminal insulation.

Technical data

10040 [395.28]

3750

[147.64]

5550

[218.50]

1000

[39.37]

mm
[in]

Operating environment

Maximum wind load 60 m/s (134 mph)

Mechanical specifications

Height, assembled 10 m (32 ft 10 in)

Dimensions

Upper mast module (H × W × L) 400 × 400 × 3750 mm

Lower mast module (H × W × L) 500 × 500 × 5550 mm

Top frame with spigot (Ø × L) 60 × 1000 mm (2.36 × 39.37 in)

(15.75 × 15.75 × 147.64 in)

(19.69 × 19.69 × 218.50 in)

Materials

Main mast assembly Glass reinforced plastic (GRP)

Top frame and spigot Aluminum

Base frame and foundation kit Galvanized steel

Crossbar, sensor support tubes, and
joining element

Sensor support arm at 2‑meter (3‑foot)
height

Painting Orange (RAL2004) and white

Packaging Plywood, suitable for air freight

Glass-reinforced plastic (GRP)

Aluminum

(RAL9016) in 7 sections according to
ICAO Annex 14 and FAA AC
150/5345‑45C
Red (RAL3020) and white (RAL9016)
in 7 sections according to ICAO Annex
14

Frangibility certification

ICAO Aerodrome Design Manual Part 6:

Frangibility Doc 9157 AN/901
1st edition, 2006

FAA Advisory Circular (AC) 150/5345‑45C

Dimensions

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Published by Vaisala | B211415EN-C © Vaisala 2021

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