Europa-List Digest Archive

Wed 01/13/21


Total Messages Posted: 10



Today's Message Index:
----------------------
 
     1. 01:28 AM - Re: Delaminated flow (John Wighton)
     2. 01:42 AM - Re: Possible Leaking Fuel Tank! (Mallard)
     3. 02:00 AM - Re: Possible Leaking Fuel Tank! (Monoman)
     4. 05:56 AM - Re: Delaminated flow (budyerly@msn.com)
     5. 06:04 AM - Re: Re: Is 160 F too cold? (William Daniell)
     6. 06:27 AM - Re: Re: Delaminated flow (D McFadyean)
     7. 08:02 AM - Is 160F too cold? (crouton)
     8. 08:35 AM - Re: Is 160F too cold? (Pete Zut)
     9. 08:14 PM - Re: Re: Mono Slave Cyl O-ring (Kingsley Hurst)
    10. 08:56 PM - Buy (50Pieces) Apple iPhone 12 Pro 5G 128GB Unlocked $29,950 (matt63867)
 
 
 


Message 1


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    Time: 01:28:50 AM PST US
    Subject: Re: Delaminated flow
    From: "John Wighton" <john@wighton.net>
    Duncan, Are you sure it wasn't a few kg of frozen water in that wing? GIPOD is very sensitive to lateral balance, maybe too much Xmas turkey (or veggiechick)? -------- John Wighton Europa XS trigear G-IPOD Read this topic online here: http://forums.matronics.com/viewtopic.php?p=500183#500183


    Message 2


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    Time: 01:42:54 AM PST US
    Subject: Re: Possible Leaking Fuel Tank!
    From: "Mallard" <james@kingdom.ie>
    https://www.amazon.co.uk/Flexible-Locking-Ratchet-Removal-Pliers/dp/B01J60O4G0 -------- Seat of my pants Read this topic online here: http://forums.matronics.com/viewtopic.php?p=500184#500184


    Message 3


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    Time: 02:00:27 AM PST US
    Subject: Re: Possible Leaking Fuel Tank!
    From: "Monoman" <mike@nyumba.co.uk>
    Further to the leaking fuel tank thread, I am also just about to replace all fuel and oil hoses. Can anyone tell me roughly what length of the various hoses to order? I have a classic with 80HP Rotax. Thanks Mike G DURO Read this topic online here: http://forums.matronics.com/viewtopic.php?p=500185#500185


    Message 4


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    Time: 05:56:17 AM PST US
    Subject: Re: Delaminated flow
    From: "budyerly@msn.com" <budyerly@msn.com>
    Duncan, In my Vortex Generator tests and more recently the stall tests with different sized leading edge stall strips I found the plane to react quite differently with any significant change. In tuft testing, placing tape and tufts at the 50% chord point significantly changed the deep stall and cruise trim characteristics. Another really annoying thing is for those who built their ailerons true to design and have a slight concave surface on the aileron upper side, any water or frost still on the aft trailing edge is noticed in trim. I use a #10 wood pencil or soda straw for initial trimming simply taped as a ramp to the aileron. It is amazing what a small amount of change as a 4 inch tab can affect roll trim. I had 12AY down for a month after a local Instructor pilot flew my plane on a short cross country and reported back that it too an annoying amount of rudder to keep it straight. I checked everything. It appears the plane was left outside in a strong thunderstorm and the rudder was banging around which caused a slack rudder cable turnbuckle to flip the cable thimble around which shortened one cable about 1/2 inch. Best Regards, Bud Yerly Read this topic online here: http://forums.matronics.com/viewtopic.php?p=500187#500187


    Message 5


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    Time: 06:04:34 AM PST US
    From: William Daniell <wdaniell.longport@gmail.com>
    Subject: Re: Is 160 F too cold?
    thanks jim Will William Daniell LONGPORT +1 786 878 0246 On Tue, Jan 12, 2021 at 8:36 AM h&amp;jeuropa <butcher43@att.net> wrote: > > Will, > > Here are some details of the cowl flap we have. > > Jim & Heather > > PS Before the cowl flap, we just used HVAC aluminum tape from Lowes to > cover some of the oil cooler. > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=500153#500153 > > > Attachments: > > http://forums.matronics.com//files/cowl_flap_187.docx > >


    Message 6


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    Time: 06:27:26 AM PST US
    From: D McFadyean <ami-mcfadyean@talktalk.net>
    Subject: Re: Delaminated flow
    John, If it was water in the wing, then it will be permanent! It's also annoying that when the cold-soaked aircraft is dragged out from the cold hangar, water then condenses and freezes on the wing surface a very fine hoar. That's happened before, but makes no difference to trim; so the boundary layer thickness is between that and the size of half a pea. Duncan McF do not archive. > On 13 January 2021 at 09:28 John Wighton <john@wighton.net> wrote: > > > > Duncan, > > Are you sure it wasn't a few kg of frozen water in that wing? > > GIPOD is very sensitive to lateral balance, maybe too much Xmas turkey (or veggiechick)? > > -------- > John Wighton > Europa XS trigear G-IPOD > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=500183#500183 > > > > > > > > >


    Message 7


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    Time: 08:02:55 AM PST US
    From: crouton <crouton@well.com>
    Subject: Is 160F too cold?
    A second radiator, oil or coolant, should not be required in a Laminova set-up. Removal of the oil radiator in the duct of the XS will increase the flow of undisturbed air through the coolant radiator and more than compensate for the heat load added to the coolant from the Laminova. I have a classic and for several years had to step climb to control temps. I no longer have to do this. I keep the airplane at KPGD (Punta Gorda, Florida) and at KEYW (Key West, FL) and in a typical year stay in south Florida until July before flying north. To be clear: I have flown many times with ramp temps in excess of 90F (33C) with no ground temperature issues and at 4500ft, 80F (26C) with no necessity to step climb to control temperatures. Creighton Smith N96EG, A009, Classic Mono, 912UL, Warp Drive, > > > > Time: 09:11:19 AM PST US > From: crouton <crouton@well.com> > Subject: Europa-List: Re: Is 160F too cold. > > > I have a classic with an 80hp. > After several years of experimentation I have settled upon a cowl flap/exit air > restrictor and, most important, a Laminova water-oil heat exchanger. > The cowl flap keeps the coolant temperature under control (210-220F) and the heat > exchanger keeps the temps in lockstep in cruise. In climb, the oil temp stabilizes > at 15-20degF over coolant temp. (I attribute this to heat load in the > gearbox.) > If you Choose the Laminova, get the largest of the 3 standard sizes. It will not > overcool. > (I started with the smallest, moved to the medium and had to install a coolant > restrictor to force more coolant through the heat exchange section) > They are not returnable so go for the big one, its not a great deal lerger or more > expensive. > In descent temps go to 170-180F. Cowl flapp closed. > It has been a lot of work, but I love my Laminova. I am in Vermont currently, > with surface temperatures in the 20-25F range. (-5C) > Warmup is a bit faster too. > > > >


    Message 8


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    Time: 08:35:24 AM PST US
    From: Pete Zut <peterz@zutrasoft.com>
    Subject: Re: Is 160F too cold?
    very nice! I wonder if the classic rads could handle the 100hp of a ULS with your setup. Cheers, Pete Classic ULS C-GNPZ On Wed, Jan 13, 2021 at 11:18 AM crouton <crouton@well.com> wrote: > > A second radiator, oil or coolant, should not be required in a Laminova > set-up. Removal of the oil radiator in the duct of the XS will increase > the flow of undisturbed air through the coolant radiator and more than > compensate for the heat load added to the coolant from the Laminova. > I have a classic and for several years had to step climb to control > temps. I no longer have to do this. > I keep the airplane at KPGD (Punta Gorda, Florida) and at KEYW (Key West, > FL) and in a typical year stay in south Florida until July before flying > north. > > To be clear: I have flown many times with ramp temps in excess of 90F > (33C) with no ground temperature issues and at 4500ft, 80F (26C) with no > necessity to step climb to control temperatures. > > Creighton Smith N96EG, A009, Classic Mono, 912UL, Warp Drive, > > > > > > > > Time: 09:11:19 AM PST US > > From: crouton <crouton@well.com> > > Subject: Europa-List: Re: Is 160F too cold. > > > > > > I have a classic with an 80hp. > > After several years of experimentation I have settled upon a cowl > flap/exit air > > restrictor and, most important, a Laminova water-oil heat exchanger. > > The cowl flap keeps the coolant temperature under control (210-220F) and > the heat > > exchanger keeps the temps in lockstep in cruise. In climb, the oil temp > stabilizes > > at 15-20degF over coolant temp. (I attribute this to heat load in the > > gearbox.) > > If you Choose the Laminova, get the largest of the 3 standard sizes. It > will not > > overcool. > > (I started with the smallest, moved to the medium and had to install a > coolant > > restrictor to force more coolant through the heat exchange section) > > They are not returnable so go for the big one, its not a great deal > lerger or more > > expensive. > > In descent temps go to 170-180F. Cowl flapp closed. > > It has been a lot of work, but I love my Laminova. I am in Vermont > currently, > > with surface temperatures in the 20-25F range. (-5C) > > Warmup is a bit faster too. > > > > > > > > > >


    Message 9


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    Time: 08:14:27 PM PST US
    Subject: Re: Mono Slave Cyl O-ring
    From: Kingsley Hurst <kingsnjan@westnet.com.au>
    Many thanks for the drawing Remi, you are a handy person to know! Consistent with the constraints of my ability to accurately measure the size of the 'O' ring I purchased, it appears mine is the same as the one in Michel's drawing so I feel more confident now that I have the correct size. Thanks again mate. Kingsley On 12.01.21 6:55 pm, Remi Guerner wrote: > > Hello Kingsley, > Attached is a drawing from Michel Auvray showing the dimension of this O-ring > Remi


    Message 10


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    Time: 08:56:44 PM PST US
    Subject: Buy (50Pieces) Apple iPhone 12 Pro 5G 128GB Unlocked $29,950
    From: "matt63867" <matt63867@gmail.com>
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