SECTION_V_-_FLUID_STANDARD_amp_amp_PREPARATION.pdf

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I
N T R O D U C T I O N & R E G U L A T I O N
B
A C K G R O U N D
W
H Y D E - I C E ?
COURSE
CONTENT
W
E A T H E R C O N D I T I O N S
F
L U I D S TA N D A R D & P R E PA R AT I O N
F
L U I D P R O B L E M S
D
E - I C E / A N T I - I C E P R O C E D U R E S
A
P P L I C A T I O N T O A I R C R A F T
D
E - I C I N G A T R Y A N A I R
S
U M M A R Y
SECTION 5:
FLUID STANDARD AND PREPARATION
ANTI-ICING
DE-ICING
COPYRIGHT 2015. RYANAIR LTD. ALL RIGHTS RESERVED. ALL DOCUMENTS PRODUCED BY RYANAIR
ARE COPYRIGHTED. ANY FORM OF COPYING OR DISTRIBUTION WITHOUT EXPRESS WRITTEN
PERMISSION IS PROHIBITED.
WHAT CAN BE DONE?
ANTI-ICING – PREVENTION
Anti-icing is a procedure to make sure that ice, snow and/or frost does
not collect and become attached to the aircraft surfaces.
Anti-icing fluid or a mixture of anti-icing fluid and water is applied to
By
applying a recommended fluid the ice formation
can be prevented or removed prior to flight.
the aircraft to do this.
DE-ICING – REMOVAL
De-Icing is a procedure to remove frost, ice or snow from the aircraft that has
formed or settled.
Hot water or a hot mixture of water and de-icing/anti-icing fluid is applied to
do this.
COPYRIGHT 2015. RYANAIR LTD. ALL RIGHTS RESERVED. ALL DOCUMENTS PRODUCED BY RYANAIR
ARE COPYRIGHTED. ANY FORM OF COPYING OR DISTRIBUTION WITHOUT EXPRESS WRITTEN
PERMISSION IS PROHIBITED.
ANTI-ICING / DE-ICING FLUID
The
types are known and accepted all over the world.
They
must conform to specified standards depending on
The three types commonly used are:
Type-I
Type-II
Type-IV
the task that they are designed for.
The
fluid must be accepted (among others) according to
its type for holdover times, aerodynamic performance and
material compatibility.
(Type III is not a preferred type)
COPYRIGHT 2015. RYANAIR LTD. ALL RIGHTS RESERVED. ALL DOCUMENTS PRODUCED BY RYANAIR
ARE COPYRIGHTED. ANY FORM OF COPYING OR DISTRIBUTION WITHOUT EXPRESS WRITTEN
PERMISSION IS PROHIBITED.
HOW TO DISTINGUISH BETWEEN TYPE I, II & IV
The
colouring of these fluids is also standardised:
TYPE
I:
ORANGE
Non-Thickened, Used for De-icing
Does not have good holdover characteristics
TYPE
II:
PALE STRAW
Contains thickening agent, which increases Viscosity and
provides for holdover
TYPE
IV:
GREEN
Contains thickening agent, which increases Viscosity.
Provides improved holdover periods over Type II.*
*Some Type II Fluids have been developed further and can
give longer holdover time than older Type IV Fluids
COPYRIGHT 2015. RYANAIR LTD. ALL RIGHTS RESERVED. ALL DOCUMENTS PRODUCED BY RYANAIR
ARE COPYRIGHTED. ANY FORM OF COPYING OR DISTRIBUTION WITHOUT EXPRESS WRITTEN
PERMISSION IS PROHIBITED.

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