|
The
Solution
Vindotco
have developed a runway cleaner that rapidly and efficiently removes the
reverted rubber tyre deposits from runways and associated areas.
The
Problem
A modern 747 Jumbo Jet lands at 160mph and weighs some 300 tons when
landing. It is equipped with 16 main landing gear tyres, and 2 nose
landing gear tyres. Aircraft tyres are manufactured from natural rubber.
Each time an aircraft lands it deposits reverted rubber on the runway
and the white lane safety markings. This is exacerbated in wet conditions.
An aircraft wheel will accelerate from 0-60 mph during a typical landing
manoeuvre. The instant gain in wheel speed on contact with the tarmac
creates a vast amount of friction. The heat created boils any water
lying on the runway surface and increases the amount of rubber deposited
by tyres.This accumulation of rubber can create a hazardous landing
surface. This build up of rubber deposit can cover the major white
lines in only three weeks.With the ever increasing world demand for
air travel, maintenance timing is critical
and the hours available for all maintenance are precious. The natural
efficacy of rubber eraser allows runway cleaning to be kept to a minimum
and reduces damage to the runways.
The Present Method
Many methods have been tried and are currently being used, none
are particularly efficient in time or effectiveness. The alternatives are
the use of (a)harsh chemicals, which not only affect the runway surface,
but in the modern ecological friendly climate are likely to be scrupulously
controlled in the future. (b)High Pressure washing, which although the
cheaper option, is very time consuming,and prematurely degrades the
runway surface by its aggressive action.
With the
ever increasing requirements for hazardous chemical controls on the environment,
some of the current batch of chemicals used for cleaning are falling foul
of current and future environment legislation. |