Thanks all. The main thing is that nothing is required on the wings.

        Mike B...minimum 75mm - at the age of most glider pilots they
wouldn't be able to read those from the wingtip!

        Regards
 ND

----- Original Message -----
From: [email protected] "Discussion of issues relating to Soaring
in Australia." 
To:"Discussion of issues relating to Soaring in Australia." 
Cc:
Sent:Wed, 07 Jan 2015 17:00:01 +1100
Subject:Re: [Aus-soaring] Registration markings

 Niall

 You are correct that at present there is no requirement for
registration markings under the wings on any aircraft below 5700 kg
MTOW operated in Australia. The exemption was renewed in 2012 and
falls due again at the end of this month: since I am not aware of any
formal post-implementation review of Part 45 I would expect that it
will be renewed for a further 3 years at that time.

 You do need to display the nationality mark "VH-" as well as the
registration letters, in letters at least 150mm high that contrast
with the background, and you do need the fireproof plate mentioned in
the exemption (meeting the requirements of reg 21.820).

 You may also display a contest marking on the vertical fin and rudder
(if the registration is marked on the fuselage sides) - many gliders,
especially those with G as the first letter, use the last 2 letters of
the registration for this, but others display a letter and a number,
or two digits - these are becoming quite popular - for instance 36,
W3, 4D, Q7, S7 are all in use. These are likely to be administered by
the GFA so you should talk to the GFA airworthiness people if you want
to  use one of these.

 The convention is that if an aircraft is marked in accordance with
the rules, and the4 rules later change, the markings do not require to
be changed until the aircraft is next painted or refinished - so if
the rules change at the end of the month and you do not have the
glider marked yet, you could have to change to meet the new rules,
whatever they may be (but that may be unlikely to happen).

 Wombat

 On 7/01/2015 3:00 PM, Niall Doherty wrote:  

        All 

        My understanding of this page 

        http://www.casa.gov.au/scripts/nc.dll?WCMS:STANDARD:1001:pc=PC_90236
[1] 

        is that the only requirement for markings on a glider is letters of
at least 150mm high on the sides. None on the undersides of the wings.


        Am I right? 

        Regards
 ND 

   
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