Today's Message Index:
----------------------
1. 02:25 AM - Re: Flying and reading glasses? ()
2. 03:51 AM - Re: Flying and reading glasses? (Bill and Sue)
3. 04:18 AM - Flying and reading glasses? (Remi Guerner)
4. 10:00 AM - Re: Flying and reading glasses? (Carl Pattinson)
5. 10:04 AM - Re: Flying and reading glasses? (Frans Veldman)
6. 03:58 PM - Re: Oil in exhaust, Rotax 914 (Europa)
7. 08:18 PM - Re: Oil in exhaust, Rotax 914 (jason Parker)
Message 1
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| Subject: | Re: Flying and reading glasses? |
Coming in late too this discussion, I have a Normal pair of Ray Bans (Green)with
the Large lenses, In the bottom 1/4 I stick Optx Removable reading Lenses +2.00,
These work really well for normal distance work looking through the top
and you can adjust the Optx Lenses to suit your own needs to view the panel through
thr bottom, It works for me :-)
http://www.optx2020.com/
ivor
>> > Hi Everyone,
> >
> > So far I have had the luck that I never needed any eye correction.
> > However with an age of 45 I'm finding myself getting more and more
> > troubles to focus nearby, and for working on small parts (electronics)
> > I'm already using reading glasses.
> > I made the unfortunate discovery that the instrument panel of the
> > Europa
> > is becoming quite close to the range where I can focus comfortably, and
> > that alternating frequently between looking outside and on the
> > instrument panel is no longer comfortable for my eyes. :-(
> > There must be more people on this forum with similar problems. How does
> > one solve this? What I was thinking about is special "flying
> > sun-glasses" with a sharp change-over exactly at the angle where the
> > glareshield is in my vision, with everything below that with some mild
> > "plus" correction. This way alternating between looking outside and on
> > the instrument should go with minimal changes in focal efforts for my
> > eyes. My optometrist is happy to construct special sun glasses if I
> > measure the exact angle where the division between outside and
> > instrument panel is, but is "my" solution workable in practice? I am
> > aware that there are glasses with a gradual change-over from far to
> > near, but in the Europa there is no gradual change over, it is either
> > focus on "infinity" or focus on "instrument panel" and nothing in
> > between (unless something disasterous is about to happen).
> > I guess I'm not the first one thinking about this problem. How do other
> > people solve this? Or am I just spoiled, being used sofar to superb
> > vision without any corrections?
> > Wearing "just" reading glasses for looking at instruments and maps does
> > not work as I like to wear sun glasses as well, so it should be all
> > together in one device.
> > I would love to hear other peoples solutions!
> >
> > Frans
> >
> >
> >
> >
>
>
>
>
>
Message 2
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| Subject: | Re: Flying and reading glasses? |
Frans,
Your experience sounds familiar. Sue and I found cheap bifocal sunglasses to be
the best flying accessory we ever bought (from about 10 here and not very trendy
to be honest, but I did buy some bifocal safety glasses in clear and tinted
on the internet for much the same price and they looked fine) For us with the
ability to focus close becoming more difficult with age they were the perfect
soloution.
I'm no optician, but an optician friend approved them and reassured me that they
would at least do no harm.
It would seem sensible to have a proper eye check to make sure you don't need anything
more complicated, but then give the off-the-shelf bifocal sunnies a try
before spending a lot of money on something more exotic.
Hope that helps you as much as it did us!
Cheers
Bill
Visit - www.EuropaOwners.org
Message 3
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| Subject: | Flying and reading glasses? |
I agree with Gary that this is the main issue with bifocals or
progressive lenses: when looking over the nose during taxiing and take
off (monowheel) and flaring (Monowheel and Trigear) you have no choice
but to look through the reading portion of the lenses while you need to
focus on "infinity". I do not think there is any 100% satisfactory
solution to that problem. When I started to use reading glasses (I was
not flying the Europa at this time) my only solution was to remove my
glasses just before landing. A few years later I had to change my
glasses again and I asked my optician to position the reading portion as
low as possible. It is a lot better but again not 100% satisfactory .
BTW I have been told that some airline pilots are using multifocals with
two reading portions: the low one as usual and another one at the top of
the lense for seeing the overhead panel! The distance portion of the
lense is therefore reduced, but do they often need to see outside?
Remi Guerner
F-PGKL
<<<<I'm not so keen on progressive lenses. I had some made a few years
back and
took them up for a flight. Not being very tall I have to stretch my
neck to
see over the glare shield. Everything went fine until I got into the
landing flare. As the nose of the plane went up to flare, I had to tip
my
head back to see straight ahead. In so doing I was now looking through
the
bottom of the lenses.......the "reading/magnifying" portion, which
caused
everything to look blurry and fuzzy on the runway. Needless to say my
landing was more of an arrival than a landing. Thankfully I didn't
break
anything. I took the glasses and threw them in the trash can.
Garry Stout, N4220S>>>>>>>>>>
Message 4
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| Subject: | Re: Flying and reading glasses? |
Hi Everybody,
There are so many messages on this subject and I just havent had time to
read them all. If somebody has come up with this solution then please accept
my apologies for the duplication.
You can get bifocal sunglasses - the near vision is a reading lens and
clear - the far vision is brown or grey tinted. Cost approximately 15.00
sterling.
Have been using these for ages IMHO the perfect solution. I thought
everybody knew about these as they were advertised in the PFA magazine
(sorry LAA - its my age !!!)
http://www.grettoptik.com/
http://www.grettoptik.com/grett/grett.nsf/8dabbbf9560779818525677200813141/$FILE/GrettOptik_UK.pdf
Happy flying,
Carl Pattinson
----- Original Message -----
From: "Frans Veldman" <frans@paardnatuurlijk.nl>
Sent: Friday, October 23, 2009 6:11 PM
Subject: Re: Europa-List: Flying and reading glasses?
>
> <frans@paardnatuurlijk.nl>
>
> JEFF ROBERTS wrote:
>>
>> Frans,
>> I believe you are over complicating it.
>
> Love to hear that, but I'm not sure if I understand fully what you mean.
>
>> so I wear my regular bifocals then I buy those ugly cover the
>
> Yes, but I don't have regular bifocals. My "distance" vision is OK.
>
>> In your case you can buy those over the
>> counter half a lens reading glasses at strengths that are a compromise
>> for reading maps and bringing your panel into view. Then cover them with
>> the sunglasses that make you look like a florida retiree. ;o)
>
> I'm not sure what you mean. I don't need the sunglasses for the map
> reading part, but for the distance viewing part, which isn't there if I
> use over the counter half a lens reading glasses. Or do you mean that I
> should glue the sun glas part on the upper edge of the reading glasses?
> That could be a fragile construction but nevertheless work, but might
> not be what you mean.
>
> What I need is glasses with a neutral upper part (although it could be
> nice if they would incorporate my -0.25 cylinder) and a +1 part for the
> instrument panel, fully colored by itself or by a sun glas cover. The
> upper part of the glasses are indeed just there for the sun glasses
> part. For some reason, it seems to be difficult to get something like
> that. They either try to sell me a $$$ varifocal thing, with a
> transition I think I don't need at all (and even don't have any place
> for: the visual distance between the ASI (+1) and the runway (neutral)
> is very small, so should be the transition area) or they tell me that it
> is not available for these small differences in strength.
>
> Frans
>
>
>
Message 5
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| Subject: | Re: Flying and reading glasses? |
ivor.phillips@ntlworld.com wrote:
>
> Coming in late too this discussion, I have a Normal pair of Ray Bans
> (Green)with the Large lenses, In the bottom 1/4 I stick Optx
> Removable reading Lenses +2.00, These work really well for normal
> distance work looking through the top and you can adjust the Optx
> Lenses to suit your own needs to view the panel through thr bottom,
> It works for me :-) http://www.optx2020.com/
Perfect! This is exactly what I'm looking for! Can just use my normal
sunglasses and put these stick on reading lenses at the right position,
without the need to explain everything to my optometrist and hope that
he will construct something usefull. And I can change it any moment
until it is perfect, or when the requirements of my vision change. It
looks like the perfect solution. Thanks!
Frans
Message 6
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| Subject: | Re: Oil in exhaust, Rotax 914 |
Frans
I know you have had reassuring responses to this - I asked the very same
question of Conrad Beal (UK Rotax service centre) when he came up to our 914
recently. He confirmed others view that this is normal especially when not
run for a while. Indeed he told us to expect oil streaks down the cowlings
to start with.
Regards
Paul
G-GIDY
About the same position as you!
On 21/10/09 15:52, "Frans Veldman" <frans@paardnatuurlijk.nl> wrote:
>
> Hi everyone,
>
> Today, after some months of working on the airplane, I decided to start
> the engine again. I noticed some time ago that the bottom of the turbo
> was a bit "wet". The engine ran fine (and for the first time without
> overheating during the long ground session), but after the succesful
> test I noticed that the exhaust had blown quite some oil away. There was
> a dark spot on the ground where the exhaust points to, and the port
> wheel was soaked with oil.
> The inside of the exhaust was dry, so the oil came out early in the
> session. The oil was not burned, I assume it came out of the turbo.
>
> Now, I would like to know whether it could (hopefully) be somewhat
> normal that after a few months of non operation the turbo seeps full
> with oil, and on engine start this oil is thrown out of the exhaust.
> If this is not normal, what is involved with fixing this?
>
> Almost flying, but new issues come up faster than I can solve them... :-(
>
> Frans
>
>
>
>
>
>
Message 7
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| Subject: | Re: Oil in exhaust, Rotax 914 |
If the ball in your check valve doesn't make a good seal, it will fill up t
he turbo oil drain box due to gravity feed. When you go to start it, you wi
ll bleed oil past the turbo seal until the oil coming in equals the oil bei
ng scavanged from the secondary oil scavange pump. Any back pressure at all
will cause oil to feed past the seal. Despite what you have been told, thi
s is really bad on a stock 914. The oil will gum up the wastegate, and you
will boost spike!! I've seen more than a handfull of engines that have boos
t spiked to over 28PSI due to this problem and turbo control issues. If you
r burning oil all the time then it is one of the following, your turbo need
s to be rebuilt, your oil check valve is not poping at 65 psi and over supp
lying the turbo, or your secondary scavange pump isn't working properly.
Jason
--- On Sat, 10/24/09, Europa <europa@pstewart.f2s.com> wrote:
From: Europa <europa@pstewart.f2s.com>
Subject: Re: Europa-List: Oil in exhaust, Rotax 914
Frans
I know you have had reassuring responses to this - I asked the very same
question of Conrad Beal (UK Rotax service centre) when he came up to our 91
4
recently. He confirmed others view that this is normal especially when not
run for a while. Indeed he told us to expect oil streaks down the cowlings
to start with.
Regards
Paul
G-GIDY
About the same position as you!
On 21/10/09 15:52, "Frans Veldman" <frans@paardnatuurlijk.nl> wrote:
l>
>
> Hi everyone,
>
> Today, after some months of working on the airplane, I decided to start
> the engine again. I noticed some time ago that the bottom of the turbo
> was a bit "wet". The engine ran fine (and for the first time without
> overheating during the long ground session), but after the succesful
> test I noticed that the exhaust had blown quite some oil away. There was
> a dark spot on the ground where the exhaust points to, and the port
> wheel was soaked with oil.
> The inside of the exhaust was dry, so the oil came out early in the
> session. The oil was not burned, I assume it came out of the turbo.
>
> Now, I would like to know whether it could (hopefully) be somewhat
> normal that after a few months of non operation the turbo seeps full
> with oil, and on engine start this oil is thrown out of the exhaust.
> If this is not normal, what is involved with fixing this?
>
> Almost flying, but new issues come up faster than I can solve them... :-(
>
> Frans
>
>
>
>
>
>
le, List Admin.
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