Today's Message Index:
----------------------
1. 12:28 AM - Re: A question about post curing? (Robert C Harrison)
2. 01:24 AM - Re: A question about post curing? (Rick Sivier)
3. 02:34 AM - Re: A question about post curing? (David Joyce)
4. 03:46 AM - Replacement rubber components (Richard Iddon)
5. 03:59 AM - Re: DOTH Leicester Fri 19th (Trevpond@aol.com)
6. 02:34 PM - Re: A question about post curing? (Jeffrey J Paris)
7. 03:05 PM - Updated Prices (David Stanbridge (Swift TG))
Message 1
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| Subject: | A question about post curing? |
Hi! Jeffrey
You won't be able to imitate my scheme without an insulation lined
covered trailer but for what it's worth I had two 2kw fan/convector
heaters with their own thermostats.
But I regularly monitored the enclosed area with a digital thermometer
by going into it. Seriously much better to start it early morning and
the temperature "climb" and "decent" need to be over long periods to
allow the polystyrene to normalize gradually. My trailer allowed me to
do all parts including the fuselage simultaneously, the wings and all
flying surfaces being cured fully assembled and adequately supported.
I find myself somewhat pleased you have reminded me why I built such an
expensive trailer !
IMHO don't just rely on thermostat control ...don't trust it take
regular readings from different locations.
Regards
Bob Harrison G-PTAG
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Jeffrey J
Paris
Sent: 18 December 2008 00:22
Subject: Europa-List: A question about post curing?
Dear Listers,
A question about post curing our epoxy parts. Today we built ourselves
an "oven" for baking our parts at the appropriate 40-50 degree celsius
for post cure. We built a 16' X 4' X 4' enclosure out of foil claded
4X8 sheets of insulation foam. The box is backed up to a basement brick
fireplace (no open flames) in which I would like to place a suitable
heating element. I also have use of an attic fan to low air around the
cavity.
Has anybody attempted this before? And if so what did you use to heat
the space. I went to a website that helps you calculate the heating
requirements for 256 cubic feet of space @ 50 degrees celsius came to
about 8900 btu's, however, heat does build up and I want a consistent
heat over a period of hours therefore I will need a thermostat of sorts
I would guess.
Any advice out there? I'm not a thermo engineer just an individual
Europa builder who's looking for an inexpensive way to do the job.
Thank you for your time and consideration.
Cheers and Happy Holidays,
Sincerely,
Jeff and Peter Paris Kit# A012 Monowheel Classic
_____
<http://tagline.excite.com/fc/BK72PcZacslRBgXFQOc9AuXTwPfhQQ89C4r2ekz6hU
fEBS8UOsjAe1/> Cooking School
<http://tagline.excite.com/fc/BK72PcZacslRBgXFQOc9AuXTwPfhQQ89C4r2ekz6hU
fEBS8UOsjAe1/> Become a Top Chef!
<http://tagline.excite.com/fc/BK72PcZacslRBgXFQOc9AuXTwPfhQQ89C4r2ekz6hU
fEBS8UOsjAe1/> Click here for more information
Message 2
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| Subject: | A question about post curing? |
Hi Jeff and Peter
I used a small fan heater to heat my oven, but with a thermostat from a
hot water tank wired into the mains supply. The thermostat was simply
dangled inside the oven somewhere around the middle. You will need a
more accurate thermometer as well to set the temperature on the
thermostat and I found that there was a bit of trial and error involved
in setting the thermostat correctly. My thermometer has a max and min
display and I found that the temperature varied from 40=C2=B0 to
50=C2=B0, so the control wasn=99t that accurate, but sufficient
for these purposes and stopped any potential overheating.
Regards
Rick
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Jeffrey J
Paris
Sent: 18 December 2008 00:22
Subject: Europa-List: A question about post curing?
Dear Listers,
A question about post curing our epoxy parts. Today we built ourselves
an "oven" for baking our parts at the appropriate 40-50 degree celsius
for post cure. We built a 16' X 4' X 4' enclosure out of foil claded
4X8 sheets of insulation foam. The box is backed up to a basement brick
fireplace (no open flames) in which I would like to place a suitable
heating element. I also have use of an attic fan to low air around the
cavity.
Has anybody attempted this before? And if so what did you use to heat
the space. I went to a website that helps you calculate the heating
requirements for 256 cubic feet of space @ 50 degrees celsius came to
about 8900 btu's, however, heat does build up and I want a consistent
heat over a period of hours therefore I will need a thermostat of sorts
I would guess.
Any advice out there? I'm not a thermo engineer just an individual
Europa builder who's looking for an inexpensive way to do the job.
Thank you for your time and consideration.
Cheers and Happy Holidays,
Sincerely,
Jeff and Peter Paris Kit# A012 Monowheel Classic
_____
<http://tagline.excite.com/fc/BK72PcZacslRBgXFQOc9AuXTwPfhQQ89C4r2ekz6hUf
EBS8UOsjAe1/> Cooking School
<http://tagline.excite.com/fc/BK72PcZacslRBgXFQOc9AuXTwPfhQQ89C4r2ekz6hUf
EBS8UOsjAe1/> Become a Top Chef!
<http://tagline.excite.com/fc/BK72PcZacslRBgXFQOc9AuXTwPfhQQ89C4r2ekz6hUf
EBS8UOsjAe1/> Click here for more information
Message 3
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| Subject: | Re: A question about post curing? |
Jeff & Peter, I also built my oven out of 2 in polystyrene insulation blocks
with foil backing. With an XS mine only had to be big enough to take
ailerons, flaps & tail planes. I sealed mine at both ends, except for a
small exit hole at ground level at one end and heated it with a single hair
dryer poked through the foam at the other end. A thermometer poked through
the side wall kept a check on temp. For Ampreg I was aiming at 16 hrs at 50
C, and the system delivered this perfectly. I guess if you have a big enough
system to take complete wings then you might need 2 hairdryers. Don't forget
to support the cooked items generously to discourage them from bending! Best
of luck! David Joyce, G-XSDJ
----- Original Message -----
From: "Jeffrey J Paris" <jeffrey-j-paris@excite.com>
Sent: Thursday, December 18, 2008 12:21 AM
Subject: Europa-List: A question about post curing?
Dear Listers,A question about post curing our epoxy parts. Today we built
ourselves an "oven" for baking our parts at the appropriate 40-50 degree
celsius for post cure. We built a 16' X 4' X 4' enclosure out of foil claded
4X8 sheets of insulation foam. The box is backed up to a basement brick
fireplace (no open flames) in which I would like to place a suitable heating
element. I also have use of an attic fan to low air around the cavity. Has
anybody attempted this before? And if so what did you use to heat the space.
I went to a website that helps you calculate the heating requirements for
256 cubic feet of space @ 50 degrees celsius came to about 8900 btu's,
however, heat does build up and I want a consistent heat over a period of
hours therefore I will need a thermostat of sorts I would guess.Any advice
out there? I'm not a thermo engineer just an individual Europa builder who's
looking for an inexpensive way to do the job.Thank you for your time and
consideration.Cheers and Happy Holidays,Sincerely,Jeff and Peter Paris Kit#
A012 Monowheel Classic
------------------------------------------------------------
Cooking School
Become a Top Chef!
http://tagline.excite.com/fc/BK72PcZacslRBgXFQOc9AuXTwPfhQQ89C4r2ekz6hUfEBS8UOsjAe1/
Message 4
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| Subject: | Replacement rubber components |
My aircraft is now 5 years old and I understand that I should replace
all the hoses and rubber components. I have obtained the fuel, oil and
water hoses from Europa but they do not supply those on the Rotax engine
(912S). Do I have to go to Skydrive for these and the other rubber
components on the engine such as carb diaphragms or is there an
alternative source?
Richard Iddon G-RIXS
Message 5
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| Subject: | Re: DOTH Leicester Fri 19th |
Hi Paddy,
I'm in.
Trev Pond
G-LINN
Message 6
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| Subject: | Re: A question about post curing? |
Thanks guys for the response. We went to good old Harbor Freight and picked up
a blower fan and a heating element and some 4 dollar temp. probes and we warmed
up our oven to 45 degrees C no problem.
All parts are loaded and tomorrow we bake our parts for post curing.
Thanks for the help.
Jeff and Peter Paris Monowheel kit# A012
PS All sides of our oven are foil!
Visit - www.EuropaOwners.org
Message 7
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To all,
Unfortunately this time I am the bearer of non Christmas cheer as the prices
for the Europa kit and spares have changed, unfortunately in the upward
direction. There are a number of reasons for this:
1. The reduced value of the GBP versus the USD, from where some of the raw
components are sourced.
2. Increased raw material prices in terms of GRP and Carbon Fibre.
On average the cost of a Monowheel kit has increased by 5.5% and that of a
Trigear between 6.1% and 6.4% depending on whether it is a motorglider or
not.
What compounds the situation is that there is no economy of scale and as
such the company costs need to be distributed over a smaller projected sales
volume. In the future we very much hope that this situation will change and
therefore there can be reductions.
On a brighter note we are looking at ways of reducing both the build time
and the manufacturing time (in order to reduce the costs of the kit) and the
results of this will be published shortly. Also we are now actively
marketing the NG Control Surfaces that reduces the time of the Stage 1 kit
from over 200 hours to 30 hours. Unfortunately this leads to more work for
us, hence there is a price increase over the conventional control surfaces
that you are most familiar.
Although this mail is the bearer of bad tidings I do wish you all a Merry
Christmas and a new year full of flying.
David Stanbridge
Europa Aircraft
PS: If there are any comments you wish to pass on please feel free to
contact me at david.stanbridge@swifttg.com, via my mobile +44 (0)7725 655600
or the landline +44 (0)1603 262301.
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