---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Wed 04/20/16: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 11:45 AM - Re: Avionics heat (davidjoyce@doctors.org.uk) 2. 01:18 PM - Re: TruTrak Gemini ADI (Dave Disney) 3. 02:34 PM - Re: Avionics heat (ami-mcfadyean@talktalk.net) ________________________________ Message 1 _____________________________________ Time: 11:45:40 AM PST US From: davidjoyce@doctors.org.uk Subject: Re: Europa-List: Avionics heat I have a simpler (& lighter version of this, with a single slightly smaller fan above passenger knees & out of sight, blowing air into the instrument unit, and this emerges through a row of about 12 1/2" holes under the pilot part of the windscreen, offering modest demisting function. David Joyce, GXSDJ On 2016-04-20 05:04, Fred Klein wrote: >> On Apr 19, 2016, at 12:23 AM, Bob Hitchcock wrote: >> >> Who uses fans, who uses ram air? How do you route your solution? > > Bob...I have 3, 120 mm computer fans w/ louvers directing air towards windshield...instrument module is spaced 1/2" from firewall and holes cut in bottom for intake air and circulation... > > Not flying yet...no verification of actual performance. > > Fred ________________________________ Message 2 _____________________________________ Time: 01:18:47 PM PST US Subject: Europa-List: Re: TruTrak Gemini ADI From: "Dave Disney" Remi, Have you considered the new Garmin G5? There are some interesting details about it on the Vans forum here http://www.vansairforce.com/community/showthread.php?t=136282 This could possibly be a better bet than a Dynon D10 or Tru Trak. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=455259#455259 ________________________________ Message 3 _____________________________________ Time: 02:34:09 PM PST US From: "ami-mcfadyean@talktalk.net" Subject: Re: Europa-List: Avionics heat Bob, I tried a computer fan, which sucked air in through the bottom of the instrument panel and exhausted through windscreen slots in the top. It wasn't very effective and, when in flight, sucks through quite hot air that convects from the surface of the footwell firewall. It did have some effect of demisting the windows, but marginal at the time needed, which was during taxiing when the aircraft was still cool and not heat soaked. This system was later changed to a cold air feed taken from the side of one of the NACA duct cockpit ventilators. This air feed is routed through a short 3/4" connecting SCAT to an exhaust tube behind the panel that squirts a jet of cool (in the UK) air in the direction of the equipment behind the panel that need it. This was more effective, and sounds more complicated than it actually is. Duncan McF. ----Original Message---- From: bobhitchcock@icloud.com Subj: Europa-List: Avionics heat Hi All Any recommendations for keeping the transponders and radios in the panel cool. Counter intuitively the replacement units need more cool air than early models. Radios now indicate a bigger Watt from 8 to 15. And the Garmin mode S is up to 45 watt. The more the mode S is interrogated the harder it works and the hotter it gets. Who uses fans, who uses ram air? How do you route your solution? Regards Bob Mono XS ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message europa-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Europa-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/europa-list Browse Digests http://www.matronics.com/digest/europa-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.