Today's Message Index:
----------------------
1. 01:53 AM - RS-232 Connections. (Michael Parkin)
2. 04:38 AM - Re: RS-232 Connections. ()
3. 05:02 AM - Re: Nanny States! (Ed)
4. 08:57 AM - Post Cure time? (Ronald J. Parigoris)
5. 09:05 AM - Return flow restrictor? (Ronald J. Parigoris)
6. 12:50 PM - Re: Return flow restrictor? (Terry Seaver)
7. 01:24 PM - Re: Return flow restrictor? (R.C.Harrison)
8. 02:39 PM - Re: Europa-List Digest: 10 Msgs - 04/15/03 (Graham Singleton)
9. 03:27 PM - Re: Return flow restrictor? (Ronald J. Parigoris)
10. 04:03 PM - Re: Post Cure time? (TELEDYNMCS@aol.com)
11. 04:25 PM - Re: Post Cure time? (Jeremy Davey)
12. 04:51 PM - Re: Nanny States! (James Nelson)
13. 05:17 PM - Re: Nanny States! (kbcarpenter@comcast.net)
14. 06:16 PM - Re: Post Cure time? (Fred Fillinger)
15. 06:46 PM - Re: Nanny States! (Steve Hagar)
16. 08:21 PM - Re: Post Cure time? (Fred Fillinger)
17. 09:23 PM - Re: Return flow restrictor? (R.C.Harrison)
18. 11:17 PM - Fw: Nanny States! (Gerry Holland)
19. 11:21 PM - Fw: Nanny States! (Gerry Holland)
Message 1
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| Subject: | RS-232 Connections. |
--> Europa-List message posted by: "Michael Parkin" <Mikenjulie.Parkin@btopenworld.com>
Here is a question for the electronics boffins.
I have a smart coupler which uses the RS232 output from my Skymap 3c to provide
+L/+R steering to the wing leveller. I am about to fit a Fuel Flow meter which
also requires RS232 data from the GPS. Is it acceptable to connect both 'listening'
devices directly to the GPS output or must I have a switch to redirect
the data, or is there another way of connecting both devices to the GPS.
regards,
Mike Parkin No 312 (G-JULZ)
mikenjulie.parkin@btopenworld.com
Message 2
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| Subject: | Re: RS-232 Connections. |
--> Europa-List message posted by: <europa@nimbus.geog.ox.ac.uk>
> --> Europa-List message posted by: "Michael Parkin"
<Mikenjulie.Parkin@btopenworld.com>
>
> Here is a question for the electronics boffins.
>
> I have a smart coupler which uses the RS232 output from my Skymap 3c to
provide +L/+R steering to the wing leveller. I am about to fit a Fuel Flow
meter which also requires RS232 data from the GPS. Is it acceptable to
connect both 'listening' devices directly to the GPS output or must I have a
switch to redirect the data, or is there another way of connecting both
devices to the GPS.
You shouldn't have any problems linking just the Tx from the Skymap to the
Rx on the other two devices. You will have problems if any hand-shaking is
needed though.
Cheers,
Mark.
Message 3
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| Subject: | Re: Nanny States! |
--> Europa-List message posted by: Ed <bizzarro@easynet.co.uk>
There is no political will to change the status quo. You see, too many
people profit from criminality and it's not just the criminals. Too many
jobs depend on allowing this to happen. Police, lawyers, judges, social
workers etc etc. And as we get closer ties into Europe, our ability to
punish criminals will be diminished as we have to conform to the European
human rights legislation. Don't get me wrong, I am not anti Europe, but such
a wide reaching legal system does not take into account the problems that
each individual country has to cope with.
All my opinion naturally!
Ed
>
>
Message 4
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--> Europa-List message posted by: "Ronald J. Parigoris" <rparigor@suffolk.lib.ny.us>
> Reading in my manual, it speaks of postcuring of flying surfaces between 40
> and 50 degrees C (104 and 122F) for 8 to 10 hours prior to paint to flash off
> volatiles and humidity and improve strength.
The manual was written for use with SP Systems Ampreg 20.
Is post cure the same duration and temperature as listed in manual when using
Aeropoxy?
What components are not necessary to post cure?
Thx.
Ron Parigoris
Message 5
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| Subject: | Return flow restrictor? |
--> Europa-List message posted by: "Ronald J. Parigoris" <rparigor@suffolk.lib.ny.us>
Taking a look at how fuel is returned to tank, it uses a small restrictor to
keep pressure up.
I have a few questions about this.
What would happen if it clogged?
How would you know if it is clogged? Wait for vapor lock sound of silence? Wait
for black smoke to appear from exhaust (perhaps fuel pressure would overcome
needlevalve), so black smoke when flying and motor that would flood at idle?
On 914? Running on 1 pump? Running on 2 pumps?
On 912S? Running on 1 pump? Running on 2 pumps?
Is there provisions to put some sort of mini filter just up flow of it? I have
not looked first hand at oriphis, perhaps it has a cintered bronze style filter
on it?
Thx.
Ron Parigoris
Message 6
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| Subject: | Re: Return flow restrictor? |
--> Europa-List message posted by: Terry Seaver <terrys@cisco.com>
On our 912S we have a fuel flow gauge that normally displays fuel_flow = flow_out
-
flow_back. It has an optional display that shows flow_out and flow_back seperately.
From
this we can tell if there is any return flow and how much it is. We usually see
about 2.2
gph (gallons per hour) for the return flow. Boost pump on or off makes only a small
difference, as the pressure only changes from about 4 psi to about 3 psi, as I
recall. It
is my understanding that the return flow numbers for 914 equipped planes is greater,
presumably due to greater fuel pressures.
A frit type restrictor with many microscopic holes would be more resistant to
clogging
than a single hole type as supplied. We have considered changing ours to a frit
type,
although we have had no trouble with the supplied unit in 250 hours, having just
checked
it just a few days ago.
I don't believe there would be any 'over pressure' issues due to a clogged return
restrictor, just potential problems with vapor lock. There have been 912 and 914
engines
flown without return flow.
I have heard of vapor lock problems with a 914 installation that had a non-standard
return flow arrangement, and we believe we have had vapor lock problems with our
912S
that has the 'standard' return flow setup. We believe our problem is related to
flights
in the winter time on auto fuel (more volatiles in the winter formulations), and
following a hot start, where the fuel system had a chance to heat soak before the
flight.
The problem is rough running at higher power settings, that slowly gets better
in flight.
We are still looking at this one, instrumenting fuel system temps in flight, etc.
regards,
Terry Seaver
"Ronald J. Parigoris" wrote:
> --> Europa-List message posted by: "Ronald J. Parigoris" <rparigor@suffolk.lib.ny.us>
>
> Taking a look at how fuel is returned to tank, it uses a small restrictor to
> keep pressure up.
>
> I have a few questions about this.
>
> What would happen if it clogged?
>
> How would you know if it is clogged? Wait for vapor lock sound of silence? Wait
> for black smoke to appear from exhaust (perhaps fuel pressure would overcome
> needlevalve), so black smoke when flying and motor that would flood at idle?
>
> On 914? Running on 1 pump? Running on 2 pumps?
>
> On 912S? Running on 1 pump? Running on 2 pumps?
>
> Is there provisions to put some sort of mini filter just up flow of it? I have
> not looked first hand at oriphis, perhaps it has a cintered bronze style filter
> on it?
>
> Thx.
> Ron Parigoris
>
Message 7
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| Subject: | Return flow restrictor? |
--> Europa-List message posted by: "R.C.Harrison" <ptag.dev@ukonline.co.uk>
Hi! Ron .
If this gets clogged you'll long time have been emergency landed !
Regards
Bob Harrison
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com]On Behalf Of Ronald J.
Parigoris
Subject: Europa-List: Return flow restrictor?
--> Europa-List message posted by: "Ronald J. Parigoris"
<rparigor@suffolk.lib.ny.us>
Taking a look at how fuel is returned to tank, it uses a small restrictor to
keep pressure up.
I have a few questions about this.
What would happen if it clogged?
How would you know if it is clogged? Wait for vapor lock sound of silence?
Wait
for black smoke to appear from exhaust (perhaps fuel pressure would overcome
needlevalve), so black smoke when flying and motor that would flood at idle?
On 914? Running on 1 pump? Running on 2 pumps?
On 912S? Running on 1 pump? Running on 2 pumps?
Is there provisions to put some sort of mini filter just up flow of it? I
have
not looked first hand at oriphis, perhaps it has a cintered bronze style
filter
on it?
Thx.
Ron Parigoris
Message 8
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| Subject: | Re: Europa-List Digest: 10 Msgs - 04/15/03 |
--> Europa-List message posted by: Graham Singleton <graham@gflight.f9.co.uk>
At 23:56 15/04/2003 -0700, you wrote:
>I also think you will find that if wind causes a closed in trailer to be
>unstable, the trouble would not be in the wind so much as it would be the
>inherent instability of the trailer.
Morning all
Trucks passing is always a problem, the bow wave from large modern trucks
moves steadily along the trailer from back to front and causes a swing. The
stability of the towing vehicle makes a big difference. The closer the rear
wheels of the vehicle are to the tow hitch the better, other things being
equal. Best towing vehicle I ever had was an MGA sports car. Excellent
handling. I remember once being surprised to hear that Lotus Europa (rear
engine) sports car won a caravan towing competition. Note that a lot of
4WD vehicles have awful handling, if the car reacts to crosswinds when not
towing it won't be very good with a trailer.
my 2c
Graham
---
Message 9
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| Subject: | Re: Return flow restrictor? |
--> Europa-List message posted by: "Ronald J. Parigoris" <rparigor@suffolk.lib.ny.us>
Do Not Arcive
Hello R.C. Harrison
You are saying a clogged restrictor will make things go quiet.
Is this caused by flooding due to the fuel pump/pumps overpowering the needle
valve, or is it due to vapor lock?
Thx.
Ron Parigoris
"R.C.Harrison" wrote:
> --> Europa-List message posted by: "R.C.Harrison" <ptag.dev@ukonline.co.uk>
>
> Hi! Ron .
> If this gets clogged you'll long time have been emergency landed !
> Regards
> Bob Harrison
>
> -----Original Message-----
> From: owner-europa-list-server@matronics.com
> [mailto:owner-europa-list-server@matronics.com]On Behalf Of Ronald J.
> Parigoris
> To: europa-list@matronics.com
> Subject: Europa-List: Return flow restrictor?
>
> --> Europa-List message posted by: "Ronald J. Parigoris"
> <rparigor@suffolk.lib.ny.us>
>
> Taking a look at how fuel is returned to tank, it uses a small restrictor to
> keep pressure up.
>
> I have a few questions about this.
>
> What would happen if it clogged?
>
> How would you know if it is clogged? Wait for vapor lock sound of silence?
> Wait
> for black smoke to appear from exhaust (perhaps fuel pressure would overcome
> needlevalve), so black smoke when flying and motor that would flood at idle?
>
> On 914? Running on 1 pump? Running on 2 pumps?
>
> On 912S? Running on 1 pump? Running on 2 pumps?
>
> Is there provisions to put some sort of mini filter just up flow of it? I
> have
> not looked first hand at oriphis, perhaps it has a cintered bronze style
> filter
> on it?
>
> Thx.
> Ron Parigoris
>
Message 10
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| Subject: | Re: Post Cure time? |
--> Europa-List message posted by: TELEDYNMCS@aol.com
In a message dated 4/16/2003 11:57:46 AM Eastern Daylight Time,
rparigor@suffolk.lib.ny.us writes:
> What components are not necessary to post cure?
>
Ron,
Because of concern about this issue by an A&P friend with lots of composite
experience helping me with my kit I specifically asked this question of John
Hurst and he told me that no components require post cure if you have the
pre-skinned version. Further, he said that all components that do require
post curing have already been done in the pre-skinned kits. Don't know if
you're skinning your own TP, ailerons and flaps, though. Might want to check
with the factory.....
Regards,
John Lawton
Dunlap, TN
A-245 - 425 hours building and still going strong~
Message 11
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--> Europa-List message posted by: "Jeremy Davey" <jeremycrdavey@btinternet.com>
I had a long conversation a little while ago with one of the technical staff
at SP Systems (who make Ampreg) about post curing, and I have no reason to
believe the basic principles of postcuring laminates are any different for
Aeropoxy. Perhaps if I relate some it will help with understanding?
Rule 1: if you heat an initially cured laminate to x degrees and then let it
cool, in future it will remain hard until heated to approximately x+5
degrees, at which point it will go soft.
Rule 2: a laminate heated to x degrees takes a finite time at that
temperature to acquire the property in Rule 1
The idea of post curing is to raise the temperature of a laminate to a given
point y degrees, hold it there for a bit, then cool it down again. After
this process you can be sure that it will not go soft unless the temperature
now reaches y+5 degrees. Of course, y is selected to be higher than any
temperature the laminate will reach in service.
Rule 2 says that you need to raise the temperature slowly. If you raise it
too fast you will get ahead of the postcuring process, the laminate will go
soft, and it may distort. Supporting the laminate with aluminium angle etc.
helps maintain shape of flanges and trailing edges, too.
Rule 3, of course, is always check these things with the factory. I've done
a slow-build tailkit so I have to postcure. If I had a quick build tailkit,
I'd check with Neville, particularly if I lived in CA, NM, AZ, TX, LA or FL!
I hope this helps.
Regards,
Jeremy
Jeremy Davey
Europa XS Monowheel 537M G-EZZA
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of
TELEDYNMCS@aol.com
--> Europa-List message posted by: TELEDYNMCS@aol.com
In a message dated 4/16/2003 11:57:46 AM Eastern Daylight Time,
rparigor@suffolk.lib.ny.us writes:
> What components are not necessary to post cure?
>
Ron,
Because of concern about this issue by an A&P friend with lots of composite
experience helping me with my kit I specifically asked this question of John
Hurst and he told me that no components require post cure if you have the
pre-skinned version. Further, he said that all components that do require
post curing have already been done in the pre-skinned kits. Don't know if
you're skinning your own TP, ailerons and flaps, though. Might want to check
with the factory.....
Regards,
John Lawton
Dunlap, TN
A-245 - 425 hours building and still going strong~
Message 12
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| Subject: | Re: Nanny States! |
--> Europa-List message posted by: James Nelson <europajim@juno.com>
Right on Gary.
This is what happens when the do gooders take over with the
whinney liberals (over in the colonies) and when the punishment does not
fit the crime. We have the same problems over here. However when we get
them in the clink, crime goes down DUH!!!
Jim Nelson
Do not archive
On Wed, 16 Apr 2003 07:22:47 +0100 Gerry Holland <gnholland@onetel.com>
writes:
> --> Europa-List message posted by: Gerry Holland
> <gnholland@onetel.com>
>
> In the bloody 'Nanny State' we live, Tony's paradise for yobism!
> Until
> the punishment fits the crime, any crime, this is going to get
> worse.
> When it goes to Court, that's if anyone ever finds the bastards, the
>
> Punishment is likely to be:
>
> 100 Hours Community Service which will probably consist of 'LEARNING
> TO
> FLY at Tax payers expense or
> an all expenses Holiday! It goes on! The libertarian minority will
> focus on the miscreants disadvantaged life and lack of opportunity.
>
> REALLY!!!!
>
> In these days of 'body adornment', Tattoos, Body piercing etc,
> perhaps
> a more barbaric approach is required.
>
> A Tattoo across the perpetrators brow with the words' I'M A THIEVING
>
> BASTARD or I COMMIT CRIMINAL DAMAGE! as a part of the judicial
> process.
> It's funny how Governments can spend billions on removing tyranical
>
> regimes that limit human rights supposedly but cant take the concept
>
> that living in a society where your home and possessions are
> plundered
> and damaged by those who have no concept or adherence to common
> decency
> let alone Human rights is an invasion of our Human rights too.
> Looting
> is no different to the burglary, theft and damage here in UK or
> Yesterday at Redhill!
>
> Perhaps 'hang them up for a few hours on the Lip and Eye Brow Rings
>
> they all love so much. I'm sorry but this sort of wanton, criminal
> behaviour needs a radical and violent response. If you have been
> robbed
> or had your home violated then you may have some agreement with my
> more
> strident attitude.
>
> I'm fortunate that help to retrieve MY goods stolen and to 'adjust'
> the
> thinking of the thieving Bastard who took them was done within a
> close
> circle of Neighbours and Friends and without wasting the Tax payers
>
> money. There was a later cost for his Hospital treatment.
>
> I feel better now but my sympathies are with those who have lost
> enjoyment opportunities this Summer due to the 'write off' of these
>
> hard worked for Aircraft.
>
> I'll get back to polishing and cleaning my AK47....... Come the
> revolution.......
>
> Gerry
>
> Gerry Holland
> mailto://gnholland@onetel.com
> +44 7808 402404
> Europa XS 384
> G-FIZY
>
> The greatest enjoyment from existence is living dangerously....
> Friedrich Nietzsche
>
>
>
>
>
>
>
>
>
>
Message 13
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| Subject: | Re: Nanny States! |
--> Europa-List message posted by: kbcarpenter@comcast.net
What the heck is this all about?
Ken Carpenter N9XS
----- Original Message -----
From: "James Nelson" <europajim@juno.com>
Subject: Re: Europa-List: Nanny States!
> --> Europa-List message posted by: James Nelson <europajim@juno.com>
>
> Right on Gary.
> This is what happens when the do gooders take over with the
> whinney liberals (over in the colonies) and when the punishment does not
> fit the crime. We have the same problems over here. However when we get
> them in the clink, crime goes down DUH!!!
>
> Jim Nelson
>
> Do not archive
>
> On Wed, 16 Apr 2003 07:22:47 +0100 Gerry Holland <gnholland@onetel.com>
> writes:
> > --> Europa-List message posted by: Gerry Holland
> > <gnholland@onetel.com>
> >
> > In the bloody 'Nanny State' we live, Tony's paradise for yobism!
> > Until
> > the punishment fits the crime, any crime, this is going to get
> > worse.
> > When it goes to Court, that's if anyone ever finds the bastards, the
> >
> > Punishment is likely to be:
> >
> > 100 Hours Community Service which will probably consist of 'LEARNING
> > TO
> > FLY at Tax payers expense or
> > an all expenses Holiday! It goes on! The libertarian minority will
> > focus on the miscreants disadvantaged life and lack of opportunity.
> >
> > REALLY!!!!
> >
> > In these days of 'body adornment', Tattoos, Body piercing etc,
> > perhaps
> > a more barbaric approach is required.
> >
> > A Tattoo across the perpetrators brow with the words' I'M A THIEVING
> >
> > BASTARD or I COMMIT CRIMINAL DAMAGE! as a part of the judicial
> > process.
> > It's funny how Governments can spend billions on removing tyranical
> >
> > regimes that limit human rights supposedly but cant take the concept
> >
> > that living in a society where your home and possessions are
> > plundered
> > and damaged by those who have no concept or adherence to common
> > decency
> > let alone Human rights is an invasion of our Human rights too.
> > Looting
> > is no different to the burglary, theft and damage here in UK or
> > Yesterday at Redhill!
> >
> > Perhaps 'hang them up for a few hours on the Lip and Eye Brow Rings
> >
> > they all love so much. I'm sorry but this sort of wanton, criminal
> > behaviour needs a radical and violent response. If you have been
> > robbed
> > or had your home violated then you may have some agreement with my
> > more
> > strident attitude.
> >
> > I'm fortunate that help to retrieve MY goods stolen and to 'adjust'
> > the
> > thinking of the thieving Bastard who took them was done within a
> > close
> > circle of Neighbours and Friends and without wasting the Tax payers
> >
> > money. There was a later cost for his Hospital treatment.
> >
> > I feel better now but my sympathies are with those who have lost
> > enjoyment opportunities this Summer due to the 'write off' of these
> >
> > hard worked for Aircraft.
> >
> > I'll get back to polishing and cleaning my AK47....... Come the
> > revolution.......
> >
> > Gerry
> >
> > Gerry Holland
> > mailto://gnholland@onetel.com
> > +44 7808 402404
> > Europa XS 384
> > G-FIZY
> >
> > The greatest enjoyment from existence is living dangerously....
> > Friedrich Nietzsche
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
>
>
>
>
>
Message 14
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| Subject: | Re: Post Cure time? |
--> Europa-List message posted by: Fred Fillinger <fillinger@ameritech.net>
>> Reading in my manual, it speaks of postcuring of flying surfaces
>> between 40 and 50 degrees C (104 and 122F) for 8 to 10 hours prior
>> to paint to flash off volatiles and humidity and improve strength.
>
> The manual was written for use with SP Systems Ampreg 20.
>
> Is post cure the same duration and temperature as listed in manual
> when using Aeropoxy?
>
> What components are not necessary to post cure?
>
> Thx.
> Ron Parigoris
>
Post-cure primarily affects heat-deflection temperature. Aeropoxy's
literature states that one obtains 196F-deg "HDT" with room-temp cure;
they do state that higher HDT is obtained with higher-temps in the
initial cure, but no mention of post-cure. As a practical matter, temps
pushing 200F will not be encountered in service if painted white.
SP's HDT at room-temp-cure is much less than that after 24-hours, but
from there their literature is ambiguous as to improvement by post-cure,
or improvement merely by 28-day further cure at room temp. Ditto for
improvement in tensile strength. Shrinkage, which is advantageous to
prevent print-through, has been argued as desirable end of post-cure,
but by SP's data sheet the shrinkage is virtually zero.
No product literature I've read (SP, Aeropoxy, or West) discuss
solvent/moisture removal that may occur by elevated-temperature curing.
Nor does Burt Rutan's book mention post cure at all. I never thought
"volatiles" were a problem if the mix ratio was correct, and am less
sold on the effects of any residual moisture if cured at low humidity.
System III's "Epoxy Book" (epoxy for boat builders) discusses water vs.
epoxy an awful lot, but nothing relevant to airworthiness of airplanes,
nor even things like paint adhesion.
Another thing to consider is that if post-cure temp as low as 104F is
sufficient, such skin temps will be encountered in service. Thus it's
been argued that it will post-cure by itself.
Regards,
Fred F.
Message 15
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--> Europa-List message posted by: "Steve Hagar" <hagargs@earthlink.net>
Gerry:
I was hoping you meant to say liberal and not libertarian unless it means
something else in the UK. In the US the libertarians are for liberty and
taking responsibility for one's own actions.
Steve Hagar
A143
Mesa, AZ
> [Original Message]
> From: Gerry Holland <gnholland@onetel.com>
> To: <europa-list@matronics.com>
> Date: 4/15/03 11:22:47 PM
> Subject: Europa-List: Nanny States!
>
> --> Europa-List message posted by: Gerry Holland <gnholland@onetel.com>
>
> In the bloody 'Nanny State' we live, Tony's paradise for yobism! Until
> the punishment fits the crime, any crime, this is going to get worse.
> When it goes to Court, that's if anyone ever finds the bastards, the
> Punishment is likely to be:
>
> 100 Hours Community Service which will probably consist of 'LEARNING TO
> FLY at Tax payers expense or
> an all expenses Holiday! It goes on! The libertarian minority will
> focus on the miscreants disadvantaged life and lack of opportunity.
> REALLY!!!!
>
> In these days of 'body adornment', Tattoos, Body piercing etc, perhaps
> a more barbaric approach is required.
>
> A Tattoo across the perpetrators brow with the words' I'M A THIEVING
> BASTARD or I COMMIT CRIMINAL DAMAGE! as a part of the judicial process.
> It's funny how Governments can spend billions on removing tyranical
> regimes that limit human rights supposedly but cant take the concept
> that living in a society where your home and possessions are plundered
> and damaged by those who have no concept or adherence to common decency
> let alone Human rights is an invasion of our Human rights too. Looting
> is no different to the burglary, theft and damage here in UK or
> Yesterday at Redhill!
>
> Perhaps 'hang them up for a few hours on the Lip and Eye Brow Rings
> they all love so much. I'm sorry but this sort of wanton, criminal
> behaviour needs a radical and violent response. If you have been robbed
> or had your home violated then you may have some agreement with my more
> strident attitude.
>
> I'm fortunate that help to retrieve MY goods stolen and to 'adjust' the
> thinking of the thieving Bastard who took them was done within a close
> circle of Neighbours and Friends and without wasting the Tax payers
> money. There was a later cost for his Hospital treatment.
>
> I feel better now but my sympathies are with those who have lost
> enjoyment opportunities this Summer due to the 'write off' of these
> hard worked for Aircraft.
>
> I'll get back to polishing and cleaning my AK47....... Come the
> revolution.......
>
> Gerry
>
> Gerry Holland
> mailto://gnholland@onetel.com
> +44 7808 402404
> Europa XS 384
> G-FIZY
>
> The greatest enjoyment from existence is living dangerously....
> Friedrich Nietzsche
>
>
>
>
>
--- Steve Hagar
--- hagargs@earthlink.net
Message 16
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| Subject: | Re: Post Cure time? |
--> Europa-List message posted by: Fred Fillinger <fillinger@ameritech.net>
Jeremy Davey wrote:
> Rule 1: if you heat an initially cured laminate to x degrees and then let it
> cool, in future it will remain hard until heated to approximately x+5
> degrees, at which point it will go soft.
I don't think you can have a simple rule, nor is 5-degrees realistic in
any case. The difference between cure temp and glass transition temp
varies all over the place by product, and increases over X number of
days. For Aeropoxy at only 77F cure, it's plus 119F degrees. As I
hinted in another post, for SP Systems it's at least plus 70F degrees
the next day. With moderate-temp postcure, it's still about plus 50;
thence even less if postcured hot enough to worry about the blue foam!
IOW look at the spec sheets for whatever resin you're using. There is
also a difference between heat deflection temp and glass transition
temp. Former I think is where the test piece begins to bend, by some
testing method I can't find. Latter is higher and where the
cross-linked molecules begin to unlink. It is determined on fancy
thermal equipment, as a small but rapid temperature spike occurs when
they unlink, the exotherm effect I guess.
Best,
Fred F.
Message 17
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| Subject: | Return flow restrictor? |
--> Europa-List message posted by: "R.C.Harrison" <ptag.dev@ukonline.co.uk>
Hi! Ron.
No,Sir you mis-understood my sarcasm ! The point being is that if there is
sufficient crap in your system after having passed the filters to block the
restrictor the carb will be by now full of it and you will be on your way
DOWN, if you get my meaning?
Regards
Bob Harrison. G-PTAG
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com]On Behalf Of Ronald J.
Parigoris
Subject: Re: Europa-List: Return flow restrictor?
--> Europa-List message posted by: "Ronald J. Parigoris"
<rparigor@suffolk.lib.ny.us>
Do Not Arcive
Hello R.C. Harrison
You are saying a clogged restrictor will make things go quiet.
Is this caused by flooding due to the fuel pump/pumps overpowering the
needle
valve, or is it due to vapor lock?
Thx.
Ron Parigoris
"R.C.Harrison" wrote:
> --> Europa-List message posted by: "R.C.Harrison"
<ptag.dev@ukonline.co.uk>
>
> Hi! Ron .
> If this gets clogged you'll long time have been emergency landed !
> Regards
> Bob Harrison
>
> -----Original Message-----
> From: owner-europa-list-server@matronics.com
> [mailto:owner-europa-list-server@matronics.com]On Behalf Of Ronald J.
> Parigoris
> To: europa-list@matronics.com
> Subject: Europa-List: Return flow restrictor?
>
> --> Europa-List message posted by: "Ronald J. Parigoris"
> <rparigor@suffolk.lib.ny.us>
>
> Taking a look at how fuel is returned to tank, it uses a small restrictor
to
> keep pressure up.
>
> I have a few questions about this.
>
> What would happen if it clogged?
>
> How would you know if it is clogged? Wait for vapor lock sound of silence?
> Wait
> for black smoke to appear from exhaust (perhaps fuel pressure would
overcome
> needlevalve), so black smoke when flying and motor that would flood at
idle?
>
> On 914? Running on 1 pump? Running on 2 pumps?
>
> On 912S? Running on 1 pump? Running on 2 pumps?
>
> Is there provisions to put some sort of mini filter just up flow of it? I
> have
> not looked first hand at oriphis, perhaps it has a cintered bronze style
> filter
> on it?
>
> Thx.
> Ron Parigoris
>
Message 18
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--> Europa-List message posted by: Gerry Holland <gnholland@onetel.com>
Sorry Ken!
First maybe I should have just kicked Dog (If I had one!) yesterday
morning.
Sometime on April 15th Vandals attacked several Aircraft parked at
Redhill causing 250,000 of damage to them!
That's what the tirade had been about!
Regards
Gerry
Gerry Holland
+44 7808 402404
Message 19
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--> Europa-List message posted by: Gerry Holland <gnholland@onetel.com>
> I was hoping you meant to say liberal and not libertarian unless it
> means
> something else in the UK. In the US the libertarians are for liberty
> and
> taking responsibility for one's own actions.
Steve Hi!
Here the liberals think opposite. Their freethinking, do nothing
attitude leads to the incident at Redhill.
Protect the violent, forget the innocent victim is their MO.
'Do gooders' Paradise.
I guess we had better close this subject as it's getting political.
Thanks to those who feel the same indignation on these matters!
Kind Regards
Gerry
Gerry Holland
mailto://gnholland@onetel.com
+44 7808 402404
Europa XS 384
G-FIZY
The greatest enjoyment from existence is living dangerously....
Friedrich Nietzsche
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