David,
It's the same for the FAA, most adverse condition.
Best regards,
Robert Borger, President
Geowhiziks & Doodlebugging, Inc.
Certified Petroleum Geophysicist AAPG#101
3705 Lynchburg Dr.
Corinth, TX 76208-5331
(C) 817-992-1117
Sent from my iPad
> On Aug 24, 2017, at 17:45, davidjoyce@doctors.org.uk wrote:
>
> PS. I wouldn't expect you to take EASA too seriously, but for what it is w
orth I have just checked their CS-VLA 959, which holds forth on the subject o
f unusable fuel, and it says it must be checked for each tank in the most ad
verse conditions likely to be encountered, so the EU is on your side! David
>
>
>
>
>> On 2017-08-24 23:22, davidjoyce@doctors.org.uk wrote:
>>
>> Bob, No of course not but I do not plan to ever be on final with anything
like an empty tank! It seems to me there are two very different things here
- unusable fuel and how anyone sensibly manages his fuel. Unusable fuel is
pretty much what it says on the label and this side of the pond its only pr
actical consequence was that the LAA want a figure for it and want it includ
ed in the 'ready for service' or empty weight. That apart I am all in favour
of gauges telling the true figure of what fuel you have in the tank. Very f
ew would want to work out in flight how much fuel is actually useable or not
. We all surely always operate with sensible reserves. In fact a fair number
of my aquaintances have never had to use the reserve tank and are rightly p
roud of themselves. In addition the large majority of my take offs and proba
bly those of my friends are with a full tank - this partly because much of m
y flying is touring, doing longish stints, but also because I still have a l
ingering memory of being taught that you should always fill the tank before p
utting the plane away so as to discourage air cooling in the tank and deposi
ting small amounts of water.
>>
>> Regards, David
>>
>>
>>
>>
>> On 2017-08-24 21:21, Robert Borger wrote:
>>
>> David,
>>
>> Will that be enough petrol on board if you are on short final at an uncon
trolled field and someone pulls out onto the runway and you have to go aroun
d?
>>
>> Best regards,
>> Robert Borger, President
>> Geowhiziks & Doodlebugging, Inc.
>> Certified Petroleum Geophysicist AAPG#101
>> 3705 Lynchburg Dr.
>> Corinth, TX 76208-5331
>> (C) 817-992-1117
>>
>> Sent from my iPad
>>
>> On Aug 24, 2017, at 14:15, davidjoyce@doctors.org.uk wrote:
>>
>> Fred/Bob, That's an entirely reasonable approach since the front end fuel
outlets make it the most critical attitude. However it only really applies t
o those who would contemplate seeing if they can take off with +/- empty tan
ks. It seems to me much more practicable to go with the cruise attitude, whe
re I guess 99% of fuel starvation happens. So door sill level would be my re
commendation.
>>
>> Regards, David Joyce, GXSDJ
>>
>>
>>
>>
>> On 2017-08-24 18:34, Robert Borger wrote:
>>
>>
>> Fred,
>>
>> I'd recommend takeoff & climb out attitude as that would be the most crit
ical and when you'd be most likely to uncover the tank outlet.
>>
>> Bob
>>
>> Sent from my iPhone
>>
>> On Aug 24, 2017, at 09:55, Fred Klein <fklein@orcasonline.com> wrote:
>>
>>
>> Could someone please tell me what the proper attitude of an XS Mono is wh
en determining the amount of "unusable fuel" on board?
>>
>>
>>
>>
>> ttp://www.matronics.com/Navigator?Europa-List
>> ics.com
>> .com
>> .matronics.com/contribution
>>
>>
>>
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