# Billede:H16 training.jpg

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## [edit] A telescopic platform

Description | telescopic aerial platform unit Helsinki H16
Source | picture by Pöllö
Date | June 2006
Author | Pöllö
Permission | own work

This aerial platform has a working height of 53 meters (approx. 178 feet) when the telescopic boom totally extended. Scalable ladders are fixed to the extendable hydraulic boom. The unit number H16 means: H = town (Helsinki), 1 = station number (first - or central - station), 6 = type of the unit (6 = aerial/ladder/telescopic platform unit).

Telescopic platforms are used in various kind of fire-fighting, evacuation, rescue, and clearing operations. The platform is able to reach also levels several meters below the ground level. Due to this feature, and the lifting capacity, the unit is sometimes used also as a support unit in rescue operations below the ground level. It can be used even as a support unit for the rescue divers and a rescue divers' unit, because this aerial offers rapidly a platform over water - with a capability to light an area of water. Sometimes a patient on stretcher hangs on ropes attached to platform above - this way an injured person can be rapidly lifted from lower (and sometimes narrower) places than the platform itself can achieve.

This aerial typically operates with other units, which are very used to operate with the aerial platform unit. Therefore it has technically a crew of only one firefighter - the driver. The unit has digital map and routing system helping the driver to reach the targets rapidly and safely.

This kind of aerials are typically equipped with i.a. control unit, lighting equipment, a fixed water way, power outlets and compressed air outlets on the platform. A stretcher can be transported over the platform. In addition, the aerials typically carry a rescue cushion. Naturally the unit has various smoke-diving equipment, because the platform often operates in the middle of smoke. Hoses and connectors are carried to connect the aerial unit to an engine, a fire hydrant, or a water tender. More hoses and nozzles can be carried to give an unit possibilities to operate more independently, however, the unit is typically supported by other units like engines - or actually the unit supports the engines. Foam liquids and other foaming equipment (nozzles, inductors etc.) are used in fires on e.g. roofs, in garrets - or in oil or chemical tanks.

Earthing equipment is needed when operating near electric tram routes or railways, or other electric wires. Various tools, like special chainsaws, ropes, wires etc. can be used when clearing storm damages, for example trees fallen over electric wires, houses etc. The aerial may contain a water pump to provide water with adequate pressure to e.g. water cannon on a platform in heights. Some aerials have an special hydraylic chainsaw with an "arm" of several meters. This gives a possibility to clear e.g. branches of trees more safely, especially in the vicinity of electric wires, if the armsaw is a well-insulated one.

The unit H16 in the picture is one of the four aerial platform units of the Helsinki Fire Department. One of the telescopic aerials is specially designed to reach the inner courtyards in the older town blocks. Typically the gateways into inner parts of old quarters are very narrow and low, and therefore a very compact aerial unit is needed. Despite of a very compact size of the small telescopic platform unit (not shown in the picture) can reach the speed of over 80 km/h and the working height of 18 meters - a height of a building with five or six floors. Whether the station has several aerial units, the first aerial could have code H161, the second H162, etc. However, the compact telescope unit called "skidi" (the kid) has an operational code H161.

## [edit] Original file history

Originally uploaded to English Wikipedia by User:Pöllö with a {{PD}} license.

File history as follows at date of upload to Commons:

11:56, April 29, 2006 . . Pöllö (Talk) . . 1280x2497 (356,434 bytes) (A telescope aerial platform ladder H16 (H = Helsinki, 1 = station number, 6 = ladder unit) in a drill in front of the CentralRescue Station in Helsinki, Finland. This aerial platform has a working height of 53 meters (approx. 178 feet). Picture taken by)

## [edit] Licensing

| This image has been (or is hereby) released into the public domain by its author, Pöllö at the English Wikipedia project. This applies worldwide. In case this is not legally possible: Pöllö grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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