Today's Message Index:
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1. 02:38 PM - Re: Vacuum lines on 914 engine (Rob Housman)
2. 04:04 PM - Re: 150th Anniversary (Ken Whiteley)
3. 04:25 PM - Re: OV protection (James Nelson)
Message 1
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| Subject: | Vacuum lines on 914 engine |
--> Europa-List message posted by: "Rob Housman" <RobH@hyperion-ef.com>
While I can not tell you what tubing you should use, I can tell you that it
definitely should not be most types of Tygon. If you go to
http://www.tygon.com/new/tg_index.html (and drill down to "chemical
properties") you can check the chemical resistance of Tygon and you will
find that most varieties are NOT RECOMMENDED for either lubricating oil or
gasoline, ergo, it would not be appropriate under the cowl where it could be
exposed to either. The manufacturer does indicate that certain specific
varieties of Tygon are EXCELLENT for these applications, so choose
carefully.
Best regards,
Rob Housman
Europa XS Tri-Gear A070
Airfarame complete
Irvine, CA
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com]On Behalf Of DJA727@aol.com
Subject: Europa-List: Vacuum lines on 914 engine
--> Europa-List message posted by: DJA727@aol.com
Does anybody have a good source for a replacement of the small vacuum hoses
on the fuel pressure regulator on the 914 engine? I had a problem with one
of
those and have doubts about the quality of the hoses themselves. I am
tempted
to go with tygon. The hoses can both leak and pinch, causing problems.
Thanks,
Dave
A227
mini U2 - 65 hoursTT
Message 2
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| Subject: | Re: 150th Anniversary |
--> Europa-List message posted by: Ken Whiteley <ken@kenwhit.demon.co.uk>
Having been at the re-enactment, I feel I must make one or two
corrections.
There is no remaining 1853 glider. The replica in the Elvington museum
was built in 1974 at Lasham for an Anglia Television programme, using
materials which would have been available to Sir George Cayley. It was
flown at Lasham towed by a car, and then eventually at Brompton Dale.
The "control" was by a pivoted cruciform surface rather like the flight
of a dart, as indicated in the sketches from Sir George's publications.
Although it flew, it was difficult to control and the opinion of Derek
Piggott who did the test flying is that it was dangerous and should stay
in Elvington Air Museum.
The glider for the enactment on Saturday 5th July was a joint venture
between Virgin Altlantic and BAE Systems at Brough where it was built.
This aircraft used mainly aluminium for the structure and achieved a
marked weight reduction over the 1974 replica. Although the control
surfaces were again cruciform in shape, they were fixed, with hinged
rear surfaces forming conventional elevator and rudder. I am not sure
about lateral control. The plan of the main lifting surface was the same
as the published sketches and the 1974 replica, i.e. it had a very low
aspect ratio. The flights across the dale were achieved in virtually nil
wind by a bungee launch with 6 men per side. It was clearly
controllable, with a flare at the termination of each flight. About 3000
people attended the re-enactment. In the evening there was a Celebration
Dinner at Brompton Hall (which is now a school) attended by about 100
people. There was an after-dinner speech by Derek Piggott who described
his experiences with the original replica and gave his assessment that
it was too dangerous to fly again. The test flying and some of the
flights on 5th July were carried out by the CFI of the Wolds Gliding
Club at Pocklington.
I am grateful for the original email on the Europa site which drew my
attention to the activities.
There is a web-site: www.the-aeroplanes-inventor.co.uk/Main.htm
Ken Whiteley #19
Message 3
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| Subject: | Re: OV protection |
--> Europa-List message posted by: James Nelson <europajim@juno.com>
Fred,
The capacitor must be attached to the output of the alternator
irrespective of the down stream items. I talked to my Rotax factory guru
"Glen" about what is necessary. As long as the cap is in the circuit,
no load is necessary for stable alternator. I run my Rotax unit with no
load and I did not want to have it not work when I needed it. Transit
glitches are best handled by the battery as you stated. So, my 40A system
is running smooth....
Yes your getting close. You will enjoy the Europa as it a nice
flying airplane. It flys like other airplanes. You know, pull the stick
back and it and things get smaller, push the stick forward and things get
bigger, :-))) But the difference is, it is one YOU made and
when fine tuned, it gets where you want smartly or cheaply by your
choice.
Jim Nelson
On Sun, 13 Jul 2003 09:12:04 -0400 Fred Fillinger
<fillinger@ameritech.net> writes:
> --> Europa-List message posted by: Fred Fillinger
> <fillinger@ameritech.net>
>
> > Doesn't Rotax specify a 50 volt cap? I would think that
> a
> > momentary spike across the cap. would be tolerated. Have you
> looked
> > at "Lectric Bobs" over voltage unit and how its wired ?
> > ...
> > Come on Fred, lets get yours in the air!!! Your are
> getting
> > close aren't you??
> >
> > Jim Nelson
>
> Yes I have the Aeroelectric circuit for PM generator OV protection.
> Rotax says 25V cap, but if a battery is connected the capacitor
> isn't
> accomplishing much. The battery should suppress any transients far
>
> better. If the battery is disconnected, then what the capacitor is
>
> intended to accomplish and what ratings are adequate is conjecture
> with
> a regulator of unknown design.
>
> I am very close to finish painting, and have just acquired a
> flatbed
> trailer. Hopefully soon now!
>
> Regards,
> Fred F.
>
>
>
>
>
>
>
>
>
>
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