Today's Message Index:
----------------------
1. 04:03 AM - Re: Old Sarum Fly in (G-IANI)
2. 04:17 AM - Was Nothing new then now propeller twist (David Joyce)
3. 06:06 AM - Re: FS 02 (rampil)
4. 06:58 AM - New Location for FLIGHT CRAFTERS (rlaviation@aol.com)
5. 10:15 AM - Re: Fuel Tank leak was it empty (Alan Burrows)
6. 11:44 AM - Re: Re: Fuel Tank leak was it empty (Sidsel & Svein Johnsen)
7. 02:35 PM - Re: ICRA rant off topic (Rowland & Wilma Carson)
8. 05:13 PM - Re: ICRA rant off topic (Rob Housman)
9. 05:16 PM - Re: ICRA rant off topic (Jack Hilditch)
Message 1
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| Subject: | Old Sarum Fly in |
Old Sarum Europa Fly In
Saturday September 15, 2007
Free Landing for Europas, Fuel available
Come and meet the three resident Europas
see Mod 64B (High Top with lowered cowl and bigger screen)
Non Flying builders and potential owners Welcome
You might even get a ride
If you plan (weather permitting) to attend please contact
Ian Rickard on 01483 714096 or e-mail (g-iani
<mailto:g-iani@ntlworld.com> @ntlworld.com)
By letting me know we can organise reserved Tables for Lunch (or
Barbeque depending on numbers)
Ian Rickard #505 G-IANI XS Trigear
Europa Club Mods Rep (Trigear)
e-mail mods@europaclub.org.uk
or direct g-iani@ntlworld.com
Message 2
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| Subject: | Was Nothing new then now propeller twist |
Bob & Ralf, There is the consideration that the central portion of most
props used on Europas will have a zero or negative angle of attack at speeds
over 100kts, which can't help the cooling!. Most props I have looked at have
a twist (taken as the difference between pitch at the tip and at 1/3
radius) of the order of 12 degrees. This is perfectly suited for a 1600mm
prop doing 2300rpm at about 35 kts, but at 115 kts at 2000 rpm you need
about 27 degrees twist to have every part of the propeller having the same
angle of attack in a uniform air flow through the propeller disc. It's not
likely that the tip will work too well at 27 degrees AOA, and if that is run
at + 5 degrees then the inner bit will be at - 10 degrees!
Props that I have looked at on Spitfires, Red Bull racers, etc &
fast turboprops various all have twists up in the 25 deg range. It is
interesting that the graph of twist needed for a given speed is not a
straight line, but a rounded top curve, rather like the course of a
projectile, so that for 1600mm prop, the figures I calculate are:
Knots: 36 61 100 130 184 246 307 at
2300rpm
Knots 31 54 88 113 164 214 267 at
2000rpm
Degrees 12 17 23 27 30 31 29
Twist needed
If you take the 2/3 radius point as having the ideal AOA then
with a12 deg twist the tip would have a pitch angle of 6 degrees less and
the 1/3 portion of 6 degrees more. That according to my calculations is what
you need at 36 kts, making our current props ideal for the initial
acceleration phase, but at130 kts, the twist is 15 degrees less than ideal.
That is to say that if the 2/3 point is ideally pitched the tip will be 7.5
degrees over ideal (and possibly stalled) and the 1/3 portion 7.5 degrees
under ideal pitch (and close to negative AOA).
On the other hand a prop with say 23 degrees of twist would be
ideal for 100kts but would be only about 5 degrees off perfect twist for 150
kts, and 6 degrees off perfect for60 kts.(with the AOA off-perfect for inner
and outer portions by only half these figures - probably still comfortably
in the working range for positive lift). The initial acceleration would of
course suffer. Going back to the original point we could hope that cooling
would be improved, as well as top speed and cruising fuel consumption.
I should say that these calculations are my own, based on the
angles needed to "screw" your way through a solid medium without slippage,
and are therefore fallible!! I would be interested to hear comments from
anyone with an insight in this area.
Regards, David Joyce, G-XSDJ
----- Original Message -----
From: "R.C.Harrison" <ptag.dev@tiscali.co.uk>
Sent: Tuesday, September 04, 2007 9:10 PM
Subject: RE: RotaxEngines-List: Re: Nothing new then .......? At least the
Jabiru can't boil ove
Message 3
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Craig (craigb(at)onthenet.com.au):
Is it really fair to say that you found redux broke down in your fuel, when the
"fuel" you were using was entirely unrelated to the gasoline or gasoline/
ethanol mixtures that Europa drivers use.
What type of engine uses methanol/acetone, a very low energy density
fuel anyway? An RC model?
--------
Ira N224XS
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=132865#132865
Message 4
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| Subject: | New Location for FLIGHT CRAFTERS |
Greetings to Everyone!
Flight Crafters (Experimental and Kit Built Builder Assistance Center)
has completed their move to a NEW location.
We are still located adjacent to the Zephyrhills, Florida Municipal Airport (www.zephyrhills-airport.com),
but we have moved to a new building.
The address is:? 40417 Chancey Road? #102? Zephyrhills, Fl? 33542.
Our phone numbers remain the same (813-779-1156 (telephone), 813-690-1916(Russell
Lepre'), 813-695-1120 (Bob Berube),813-779-7582 FAX.
Keep checking our website (www.flightcrafters.com) or (www.zenithdistributing.com) for pictures, maps, and our latest projects.
Russell Lepre' / Bob Berube
________________________________________________________________________
Email and AIM finally together. You've gotta check out free AOL Mail! - http://mail.aol.com
Message 5
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| Subject: | RE: Fuel Tank leak was it empty |
Hi Ron
Yes my tank was emptied for the journey from UK to the U.S. in fact it was
empty for a period of about 2 months!
I wonder if its worth asking the community the same question about other
tank leaks, because its certainly information that should be shared if it
was the cause of my leak.
Has anyone else got a similar story?
Kind Regards
Alan
-----Original Message-----
From: rparigor@suffolk.lib.ny.us [mailto:rparigor@suffolk.lib.ny.us]
Sent: 20 August 2007 19:42
Subject: Fuel Tank leak was it empty
Hello Alan
Was your tank ever empty of fuel after fuel had once been in it? (perhaps
you flushed tank with fuel during build and then after a while emptied?)
Thinking by some is that will cause tank to shrink and can cuase cracking?
Thx.
Sincerely
Ron Parigoris
09:05
22:36
Message 6
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| Subject: | Re: RE: Fuel Tank leak was it empty |
Ron, Alan,
I flushed my tank with salt water (to fascilitate removing swarf after
opening holes) and then with fuel before fitting the tank into the cockpit
module. Left the fuel (full tank) in for abt one week to check if any
pinhole leaks. Thereafter it was left empty/dry for about 3 1/2 years. I
now have 35 hours flight time and 45 landings (none hard - yet!). No
cracking of the tank, but it shows clear signs of bulging around the spacers
on the inside of the seat backs, which is a bit worrying although I
understand it is to be expected.
Best regards,
Svein
LN-SKJ
----- Original Message -----
From: "Alan Burrows" <alan@kestrel-insurance.com>
Sent: Wednesday, September 05, 2007 7:13 PM
Subject: Europa-List: RE: Fuel Tank leak was it empty
> <alan@kestrel-insurance.com>
>
> Hi Ron
>
> Yes my tank was emptied for the journey from UK to the U.S. in fact it was
> empty for a period of about 2 months!
> I wonder if its worth asking the community the same question about other
> tank leaks, because its certainly information that should be shared if it
> was the cause of my leak.
> Has anyone else got a similar story?
> Kind Regards
>
> Alan
>
> -----Original Message-----
> From: rparigor@suffolk.lib.ny.us [mailto:rparigor@suffolk.lib.ny.us]
> Sent: 20 August 2007 19:42
> To: Alan Burrows
> Subject: Fuel Tank leak was it empty
>
> Hello Alan
>
> Was your tank ever empty of fuel after fuel had once been in it? (perhaps
> you flushed tank with fuel during build and then after a while emptied?)
>
> Thinking by some is that will cause tank to shrink and can cuase cracking?
>
> Thx.
> Sincerely
> Ron Parigoris
>
>
> 09:05
>
>
> 22:36
>
>
>
Message 7
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| Subject: | Re: ICRA rant off topic |
At 2007-09-04 14:17 -0400 Fergus Kyle wrote:
>Somehow, I have inherited an asinine program from ICRA
> One of my sources (and an excellent one at that) is the UK Aircraft
>Accident Investigation Board - a long-standing and valuable preventive
>source.
> When I seek out the bulletins,
>aaib.dft.gov.uk/publications/bulletins/May_2007.cfm, for instance, I am then
>presented with a choice of particular events, or a compendium of preliminary
>remarks prior to formal investigation, when I opt for a specific report,
>this stupid ICRA program cuts me out
Fergus - I've never heard of ICRA and don't know what software they supply.
I suggest you try browsing websites with a web browser. There are
many available, including my favourite Safari, now (I understand)
also available for those limited to applications that run under some
flavour of Windows. I've had no problems using any part of the AAIB
website with Safari. But I've not heard of anyone having problems
with Internet Explorer either. If you are using Windows it should be
available somewhere on the machine.
regards
Rowland
--
| Rowland Carson PFA #16532 http://home.clara.net/rowil/aviation/
| 800 hours building Europa #435 G-ROWI e-mail <rowil@clara.net>
Message 8
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| Subject: | ICRA rant off topic |
DO NOT ARCHIVE
Ferg:
If you are using IE check your settings at Tools, Internet Options, click on
the Content tab, and then click on Enable or Disable (whichever is shown).
If your filter is on (Disable will be shown)then you can simply turn it off.
The bad news is that if you did not set up the filter yourself, or know who
did, you may be out of luck because you will need the password to make
changes.
Note that if your filter is on, one of the problems may be that UKAAIB site
may not have a "rating" and unrated sites will be blocked. To allow unrated
sites (again in IE) continue as described in the first sentence above by
clicking on Settings, then in the Content Advisor that opens next choose the
General tab and put a check next to "Users can see websites that have no
rating." Alternatively you can click on the Approved Sites tab and add the
URLs, one by one, that you will allow past the filter whether they have a
rating or not. All of this assumes that you know the password.
More than you probably want to know about Microsoft's Content Advisor is at
http://www.microsoft.com/technet/prodtechnol/ie/reskit/6/part2/c05ie6rk.mspx
?mfr=true
You can get rid of the password by throwing money at the problem. For
example http://f.lostpassword.com/ie.htm with which I have no experience so
this is not a recommendation for a specific program.
...and don't blame the Brits because this nonsense probably was started by
those divorced or gay "family values" politicians in Washington, DC. Say,
Ferg, do you think Ottawa would consider making California a Province?
Best regards,
Rob Housman
Irvine, California
Europa XS Tri-Gear
S/N A070
Airframe complete
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Fergus Kyle
Sent: Tuesday, September 04, 2007 11:17 AM
Subject: Europa-List: ICRA rant off topic
I realise this is off the topic - if not applicable to aviators and
builders.
Somehow, I have inherited an asinine program from ICRA. This outfit is based
in UK - so you British-based readers are personally responsible.........
It is my bounden duty to research and digest the causes of aircraft
accidents. These provide the answer (usually) for one of two alternatives:
(a) "there, but for the Grace of God, go I" - that is, I might have done the
same - oh-oh
(b) "that's not me" - the man was a fool, I wouldn't have done that (right
or wrong)
One of my sources (and an excellent one at that) is the UK Aircraft
Accident Investigation Board - a long-standing and valuable preventive
source.
When I seek out the bulletins,
aaib.dft.gov.uk/publications/bulletins/May_2007.cfm, for instance, I am then
presented with a choice of particular events, or a compendium of preliminary
remarks prior to formal investigation, when I opt for a specific report,
this stupid ICRA program cuts me out - perhaps it's bad for my id.
Id idn't.
Ferg
Message 9
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| Subject: | ICRA rant off topic |
It is a parental Internet content filter. Try uninstalling it by clicking the
following:
Start > Settings > Control Panel > Add/Remove Programs
Uninstall the ICRAPlus Internet Filter
(The actual program should be located in the C:\Program Files\ICRAplus\ICRAplus\
folder)
Further information here:
http://www.castlecops.com/o23list-1854.html
http://www.icra.org/icraplus/
Regards,
Jack Hilditch
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Rowland & Wilma
Carson
Sent: Wednesday, September 05, 2007 3:23 PM
Subject: Re: Europa-List: ICRA rant off topic
At 2007-09-04 14:17 -0400 Fergus Kyle wrote:
>Somehow, I have inherited an asinine program from ICRA
> One of my sources (and an excellent one at that) is the UK Aircraft
>Accident Investigation Board - a long-standing and valuable preventive
>source.
> When I seek out the bulletins,
>aaib.dft.gov.uk/publications/bulletins/May_2007.cfm, for instance, I am then
>presented with a choice of particular events, or a compendium of preliminary
>remarks prior to formal investigation, when I opt for a specific report,
>this stupid ICRA program cuts me out
Fergus - I've never heard of ICRA and don't know what software they supply.
I suggest you try browsing websites with a web browser. There are
many available, including my favourite Safari, now (I understand)
also available for those limited to applications that run under some
flavour of Windows. I've had no problems using any part of the AAIB
website with Safari. But I've not heard of anyone having problems
with Internet Explorer either. If you are using Windows it should be
available somewhere on the machine.
regards
Rowland
--
| Rowland Carson PFA #16532 http://home.clara.net/rowil/aviation/
| 800 hours building Europa #435 G-ROWI e-mail <rowil@clara.net>
--
PM
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