Tim
Thanks for that info - it may of course be the case that LAA/PFA have a logi
c for accepting the Matronics unit (grandfather rights or long fault free op
erational history) or that it doesn't present the same risk as the VP unit f
or technical reasons.
I'd like to raise the query with Andy but I'm slightly concerned that instea
d of getting approval for my VP unit, I get approval revoked for Matronics u
nits? I'll talk to Tony Kay and ponder.....
Richard
Sent from my iPad
> On 12 Jun 2014, at 11:22, houlihan <houlihan@blueyonder.co.uk> wrote:
>
> Hi Richard.
>
> I have a Matronics governor fitted in my Europa , its been flying for 12 y
ears now, The governor was fitted prior to first flight and I provided the d
ocumentation to the then PFA to support the fitting of this unit. Frances Do
naldson then approved its fitting subject to a report from the pilot who car
ried out the test schedule stating that the position of the trim switch did n
ot cause problems, I recall Frances asking why I wanted to fit this device a
nd my answer that A, I wanted speed control and B, I wished to mount the se
cond switch so that it was fore and aft so that pushing forward caused nose d
own etc , must have been acceptable and it was then formally permitted.
>
> I wonder what has changed in the meantime, though in general I agree that s
imple is usually best and if if something is not fitted it will not fail in t
he future so if you don't need it don't fit it and that is usually also the l
ighter option..
>
> regards
>
> Tim
> G-BZTH
>
>
>
>> On 12 June 2014 10:44, Sky Mail <richard.churchill-coleman@sky.com> wrote
:
y.com>
>>
>> Rowland
>>
>> I recently investigated using a Vertical Power system as the relay and sp
eed controller for my elevator trim servo with stick top switches, with some
advice from Tony Kay. In brief, Tony spoke to Andy Draper who confirmed th
at, due to the critical nature of the trim on an all-moving tailplane such a
s the Europa, the LAA wouldn't sanction any electronic controller/device in t
he trim circuit between the trim switch and the servo, in case of failure. I
believe the RAC relay deck is ok because it switches the power but doesn't t
ry to electronically control it.
>>
>> On that basis, would this unit be permitted - I'm not sure where it goes i
n the circuit?
>>
>> Richard CC
>>
>> > Its primary function is to allow for the trim servo speed to be adjuste
d - I understand some folk have found the natural speed of the servo too hig
h for their liking - but as bonus you can add as many extra trim switches as
you want. (eg one on the panel and one on each stick-top.) I have fitted on
e to my trim circuit and in my tests so far (not yet flying) I find it is en
tirely satisfactory. In the picture of my panel (I posted a link to it yeste
rday) the small hole at bottom left adjacent to the trim switch is for screw
driver adjustment of the trim speed.
>> >
>> > in friendship
>> >
>> > Rowland
>> >
>> > | Rowland Carson
>>
>>
>> ==========
>> st" target="_blank">http://www.matronics.com/Navigator?Europa-List
>> ==========
>> MS -
>> k">http://forums.matronics.com
>> ==========
>> e -
>> -Matt Dralle, List Admin.
>> t="_blank">http://www.matronics.com/contribution
>> ==========
>
>
>
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