Today's Message Index:
----------------------
1. 03:46 AM - Re: prop bolts (philip george)
2. 06:22 AM - Re: Flying on Salt (rlborger)
3. 06:24 AM - Re: Flying on Salt (Troy Maynor)
4. 10:50 AM - Re:flying on salt (Ralph Hallett)
5. 11:47 AM - Re: Woodcomp CS curved propeller type (Michael Grass)
6. 01:13 PM - Re: Europa front wing pins (danbish)
7. 07:41 PM - Re: Flying on Salt (gdh)
8. 08:00 PM - Re: Flying on Salt (Tom Friedland)
Message 1
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--> Europa-List message posted by: "philip george" <philipgeorge347@hotmail.com>
Rowland I was at one time a Snap on tools dealer and Snap on used to
produce a chart for use with torque adaptors for use in this situation ie.
any adaptor offsetting the torque length as used on for example . V12 Jag
cylinder heads when the casting overhangs the head bolts . the angle that
the torque wrench is pulled makes no difference (unless someone corrects me)
any Snap on dealer should be able to supply the chart . Philip George
>From: Rowland Carson <rowil@clara.net>
>To: europa-list@matronics.com
>Subject: Re: Europa-List: prop bolts
>Date: Fri, 8 Sep 2006 11:00:01 +0100
>
>--> Europa-List message posted by: Rowland Carson <rowil@clara.net>
>
>At 2006-09-07 18:58 +0200 Sidsel & Svein Johnsen wrote:
>
>>I have attached (I hope it comes through!) a rough sketch illustrating the
>>principle.
>
>Svein - your diagram is excellent and clearly shows what you mean to do -
>but I'm having trouble understanding how this ensures correct torque at the
>prop bolt.
>
>Initially, I thought it was fine, but when I try to analyse what is
>happening in terms of the forces that are being applied at various points,
>I don't seem to be able to extract a sensible answer.
>
>I also imagined a different geometry - such as the torque wrench in line
>with the ring spanner - and it seems that wouldn't work unless the torque
>setting was adjusted to allow for the relative lengths of the torque wrench
>and spanner.
>
>Can you (or anyone else) offer an explanation of why the 90-degree geometry
>works?
>
>regards
>
>Rowland
>--
>| Rowland Carson PFA #16532 http://home.clara.net/rowil/aviation/
>| 750 hours building Europa #435 G-ROWI e-mail <rowil@clara.net>
>
>
Message 2
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| Subject: | Re: Flying on Salt |
Thomas,
Thanks for the story and pics. Very nice.
Good building and great flying all,
Bob Borger
Europa Kit #A221 N914XL, XS Mono, Intercooled 914, Airmaster C/S
http://www.europaowners.org/N914XL
(85%) tail kit done, wings closed, cockpit module installed, pitch
system in, landing gear frame in, rudder system in, outrigger mod in,
Fuselage Top on, lift/drag/flap pins in, wing incidence set, tie bar
in, flap drive in, Mod 70 done. Baggage bay in. Flaps & Main Gear
complete. Working in - 24 Instrument Panel, 25 Electrical, 30 Fuel
System, 32 Tail, 34 Door Latches & 35 Doors, 37 Finishing. Airmaster
arrived 29 Sep 05. Seat arrived from Oregon Aero. E04 interior kit
has arrived. Preparing for ROTAX 914 installation.
3705 Lynchburg Dr.
Corinth, TX 76208
Home: 940-497-2123
Cel: 817-992-1117
Message 3
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| Subject: | Re: Flying on Salt |
<<<<<<<Time: 10:11:47 PM PST US
From: "Thomas Scherer" <thomas@scherer.com>
Subject: Europa-List: Flying on Salt
Just to report about the last flight of N81EU ...>>>>>>>>
Thomas,
You should have said " the lastest flight". It scared me there for a minute.
:))
I think a 35 mile runway would be nice to practice touch and gos with a
monowheel Europa. (but of course make sure you wash all the salt off the
metal parts)
Troy
Do Not Archive
Message 4
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| Subject: | re:flying on salt |
--> Europa-List message posted by: Ralph Hallett <n100rh@sbcglobal.net>
Thomas,
Thanks for the great pictures and story. Nice work!
Ralph
Reno, NV
XS MonoMotorGlider
Message 5
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| Subject: | Re: Woodcomp CS curved propeller type |
All,
thanks for the replies. This prop looks promising with the preliminary
data and, Fred I agree, very cool on the aircraft. I have ordered it
now. :<))
The sad part is: It will still take a while before I can give a report
on the performance because of my building progress. :<(
Good part is that I still enjoy the building :<)) .
I always wonder what ex builders do when their are finished and not
flying.
Thanks again
Michael Grass
Europa XS 914 Trigear
Detroit
----- Original Message -----
From: R.C.Harrison
To: europa-list@matronics.com
Sent: Thursday, September 07, 2006 5:35 PM
Subject: RE: Europa-List: Woodcomp CS curved propeller type
Hi! Michael
In the absence of William Mills and David Joyce I can pass on to you
some results of comparisons which they did on the Woodcomp propeller.
I know that William has the scimitar shaped blades on an SR 3000. but
his engine is the Rotax 912S . ..he also has the control unit by Mark
Burton and I know it has a very fast facility to go into "beta" mode
(reverse thrust) which I know William makes good use of on his very
short landing strip.
Unfortunately William and David have just left on " The Last of the
Summer Wine Tour" round France so will be about a week before returning
and then on or about the 17th Sept. they go on the Canaries Trip for 10
days.
However the chart I'm providing will serve as a point of interest
until you can get a direct dialogue going with them either between the
aforementioned trips or after.
Bryan Allsop also has a Woodcomp Propeller but I know it has the
straight blades on a 912S as has Davids but David has the Rotax 914.and
I think his propeller is the 2000SR.
Mark Burton who has developed a superior controller for the Woodcomp
may be able to discuss some features with you in their absence. His
e-mail address is:-
Mark Burton markb@ordern.com But I believe he is also intending to do
the Canaries trip as indeed I will be with Bryan Allsop.
I attended a conducted tour of the Kremen/Woodcomp factory with the
group which went on the first "Six Nations Tour" and I am pleased to
confirm that they have a very dedicated and professional team working to
exacting standards producing propellers with excellent quality at very
advantageous prices.
Best regards
Bob Harrison.
Herewith the document mentioned above....I'm not sure, however, that
the tables are for the scimitar 3000SR blades though.
The Cedars, Glascoed, Pontypoool, Gwent. NP4 OTZ
Tel: 01495 785499
_____________________________________________________________________
To: Ales Kremen Woodcomp s.r.o.
Vodolska 4, 250 70 ODOLENA VODA
CZECH REPUBLIC
2nd June 2006
SR 3000/3 - SR2000/3 Performance Comparison Tests Results
Flights carried out on 31st May 2006
Conditions of the Flight Tests: -
=B7 Both Propellers were fitted to Europa Monowheel Classic
Reg. G-HOFC
=B7 Both test flights were carried out with identical pay loads
(near maximum all up weight) and the fuel used on the first flight was
replaced before the second flight was made.
=B7 The bugs gathered on the airframe on the first flight were
removed before the second flight was made.
=B7 Both sets of blades were clean before flight.
=B7 The test flights were made between 7,000 and 7,200 feet
above sea level where the air was absolutely stable and the wind speed
was negligible.
=B7 Both flights were carried out in the same area of
uncontrolled airspace and with approximately the same headings.
=B7 Fuel flow tests at the various indicated airspeeds were
carried out at target 5,000 rpm engine speed to allow for the
restriction on the SR 2000 reduced coarse pitch limit at high throttle
settings.
=B7 ** Engine oil temperature was 10 deg C higher for the
second takeoff.
=B7 QNH was 1027 mb and OAT at ground level was 12 deg C and at
7,000 ft was 1.5deg C
=B7 Pilot: William Mills Observer: David Joyce
SR 3000/3
SR 2000/3
Takeoff time 09.15
hrs
Takeoff time 10.50
hrs
Landing time 10.15
hrs
Landing time 11.40
hrs
Ground run to T/O 183 yards
Ground run to T/O ** 242 yards
Climb from 1100 to 2100 ft 73 secs
Climb from 1100 to 2100 ft ** 71 secs
Full power climb rate @ 5,500 rpm
and 74 Kts between 3,500 /4,000 ft 1000 ft/min
Full power climb rate @ 5,500 rpm
and 75 Kts between 4,000 and 4,500 ft 950 ft/min
Max airspeed @ 7,000 ft and 5,500 rpm 145 Kts
Max airspeed @ 7,000 ft and 5,500 rpm 141 Kts
Fuel flow @ max airspeed 22.4 L/hr
Fuel flow @ max airspeed 22.7 L/hr
Fuel flow @ 100 Kts IAS 11.4 L/hr
Fuel flow @ 100 Kts IAS 13.4 L/hr
Fuel flow @ 110 Kts IAS 14.1 L/hr
Fuel flow @ 110 Kts IAS 14.8 L/hr
Fuel flow @ 120 Kts IAS 14.4 L/hr
Fuel flow @ 120 Kts IAS 15.3 L/hr
Fuel flow @ 125 Kts IAS 16.3 L/hr
Fuel flow @ 125 Kts IAS 16.8 L/hr
Fuel flow @ 130 Kts IAS 17.4 L/hr
Fuel flow @ 130 Kts IAS 18.2 L/hr
Conclusion: The SR 3000/3 has a better all-round performance than the
SR 2000/3. Normally, the target rpm for high cruise speeds is between
4,500 and 4,700, which would give a slightly better fuel consumption,
but for comparison purposes 5,000 rpm was selected to allow for the SR
2000/3 reduced coarse limit. The average fuel flow between the speed
range of 100 to 130 Kts was 14.72 L/hr for the SR 3000/3 and 15.70 L/hr
for the SR 2000/3, which gives a fuel saving of 6.24%. However, the SR
3000/3 result at 110 Kts appears high when plotted on a graph and it
might be accounted for by the aircraft flying at the back of the
lift/drag curve causing excessive drag. If this is corrected by
interpolation to say 13 L/hr at 110 Kts, the average fuel flow for the
SR 3000/3 would be reduced to 14.5 L/hr, which gives a saving of 7.64%.
The ground run prior to take-off is 24% shorter with the SR 3000/3.
...............................................................
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of
m.grass@comcast.net
Sent: 07 September 2006 00:03
To: europa-list@matronics.com
Subject: Europa-List: Woodcomp CS curved propeller type
Hi all,
I am just about ready to order my cs prop. I was set on the Woodcomp.
The company came back with the question "curved or straight" blades!
My question now is: Did anybody on this list has some comments on the
new curved design from Woodcomp? Attached you find pictures from the
curved and straight blade design. I could not get good advise so far
which would be better for my Tri Gear Europa XS with a 914. Are there
any performance data available?
Thanks in advance
Michael Grass
Europa XS TriGear, 914 Rotax
Detroit, Michigan
Message 6
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| Subject: | RE: Europa front wing pins |
--> Europa-List message posted by: "danbish" <n914rb@earthlink.net>
Just wish it didn't come from so much personal experience! Man, this step was a
bear for me. I get to help Gary with his now but it'll go 99% faster/better now
that we've learned on mine.
DB
----------------
Visit EuropaOwnersForum http://www.europaowners.org/
Message 7
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| Subject: | Re: Flying on Salt |
Thomas,
Wow! what an experience! The pictures you sent were great but where are
the "action" pictues?
Regards,
Dale Hetrick
P.S. I still have your vibration measuring instrument
Message 8
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| Subject: | Re: Flying on Salt |
Dale
You have an instrument to measure vibrators! How do you calibrate it?
Tom (In Ellensburg, WA)
On 9/9/06, gdh <gdh@isp.com> wrote:
>
> Thomas,
> Wow! what an experience! The pictures you sent were great but where are
> the "action" pictues?
> Regards,
> Dale Hetrick
> P.S. I still have your vibration measuring instrument
>
>
> *
>
> *
>
>
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