---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Thu 06/07/18: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:06 AM - Re: UMA differential pressure sender with Dynon Skyview (Erich Trombley) 2. 12:23 PM - Re: Re: UMA differential pressure sender with Dynon Skyview (William Daniell) 3. 02:56 PM - Re: UMA differential pressure sender with Dynon Skyview (Erich Trombley) 4. 05:15 PM - Leaning the 912/912S w/Airmaster and HACman (crouto) ________________________________ Message 1 _____________________________________ Time: 01:06:33 AM PST US From: Erich Trombley Subject: Europa-List: RE: UMA differential pressure sender with Dynon Skyview Hi Will, I use the UMA differential pressure sender (UMA N1EU07D) with my Dynon Skyview. Works very well. I tied into the fuel circuit on the outlet side of the Rotax fuel pressure regulator using a longer duel banjo bolt and fitting. And, used a vacuum tee at the Rotax air box pressure sensor. Regards, Erich Trombley N28ET Classic Mono 914 ____________________________________________________________ Good Morning America Confirms Unfortunate News greatsuperstars.world http://thirdpartyoffers.juno.com/TGL3131/5b18e5bf588a865bf0c55st04vuc ________________________________ Message 2 _____________________________________ Time: 12:23:54 PM PST US From: William Daniell Subject: Re: Europa-List: RE: UMA differential pressure sender with Dynon Skyview Eric Thanks Can you give me the set up steps please Ive changed sensor input mapping to the uma diff press gauge but the widget doesnt move. I think im missing a step. Will On Thu, Jun 7, 2018, 03:08 Erich Trombley wrote: > > > > Hi Will, > > I use the UMA differential pressure sender (UMA N1EU07D) with my Dynon > Skyview. Works very well. I tied into the fuel circuit on the outlet side > of the Rotax fuel pressure regulator using a longer duel banjo bolt and > fitting. And, used a vacuum tee at the Rotax air box pressure sensor. > > Regards, > Erich Trombley > N28ET Classic Mono 914 > ____________________________________________________________ > Good Morning America Confirms Unfortunate News > greatsuperstars.world > http://thirdpartyoffers.juno.com/TGL3131/5b18e5bf588a865bf0c55st04vuc > > ________________________________ Message 3 _____________________________________ Time: 02:56:35 PM PST US From: "Erich Trombley" Subject: Europa-List: RE: UMA differential pressure sender with Dynon Skyview Hi Will, Some sensors require a calibration. I am going from memory as it has been some while since I installed the sensor. Go to the setup me nu and look for hardware/EMS calibration and see if the sensor is listed . If so, follow the calibration steps. I can look next time I at the p lane if that doesn't work for you. Erich TrombleyN28ET Classic Mono 914 ____________________________________________________________ Good Morning America Confirms Unfortunate News greatsuperstars.world http://thirdpartyoffers.juno.com/TGL3131/5b19a9c52a69929c50984st03vuc ________________________________ Message 4 _____________________________________ Time: 05:15:09 PM PST US From: crouto Subject: Europa-List: Leaning the 912/912S w/Airmaster and HACman This is a diary of my experience with a Classic 912 over 2 years and several long cross countries and multiple legs at around 10,000ft msl. They are my experiences only and might serve as a starting point for you. ENSURE YOUR CARBS ARE WELL SYNCHRONIZED. I raised the needles to richen the mixture slightly. The manual says that might be necessary. Bing carbs provide a good mixture up to 4500msl. The HACman links the venturi vacuum and the pressure (vacuum) in the float bowl through a tapered needle valve which varies the mixture as the pressures stabilize. This is not an instantaneous process. (Lest you think this is a non-aviation method of leaning, the Stromberg carbs fitted to all A-series Continentals used this system.) At part throttle there is a significant vacuum at the venturi and mixture adjustment is positive. At full throttle (WOT) there is very little vacuum at the venturi so the valve will be opened more in order to get a vacuum in the float chamber. To lean: 1). Establish a stable cruise. Note MAP, EGT&RPM. 2) Maintain a stable cruise. SWITCH PROP TO MAN. Note MAP, EGT and especially RPM. 3) Maintain a stable cruise. Slowly screw out the mixture control, pausing every 1/2 turn or so. You want to sneak up on the peak and as previously mentioned the response takes a few seconds for the pressures to equalize. Note RPM and EGT. Continue to screw out the mixture control, pausing every 1/2 turn. 4). Maintain a stable cruise. Note RPM and EGT. When RPM drops JUST A BIT, note EGT and screw the mixture control in slowly until RPM is restored. Note EGT and RPM. Peak EGTs will vary day to day. Return prop control to AUTO. Rotax are not approved for LOP operation so I go at least 50deg F rich. My experience is that my 912 @ 10,000MSL @ WOT is all the mixture control can handle. Retarding the throttle a bit in order to get a little vacuum might increase the vacuum over the float and allow a bit more leaning, but then you havent got WOT any more. Richen before changing power or altitude. If you forget once you wont forget again. It wont hurt anything, but it is an attention-getter. My experience is that at 10k and close to 1450 gross the burn is on the order of 3.8gph US at 123-128KTAS. Need I point out that your mileage may vary? Creighton Smith N96EG > > > ________________________________ Message 4 _____________________________________ > > > Time: 05:31:28 PM PST US > From: Bud Yerly > Subject: Re: Europa-List: Fuel management > > Creighton uses the FC10. > > Bud Yerly > Custom Flight Creations > > From: owner-europa-list-server@matronics.com onics.com> on behalf of Mike Christine Duane > Sent: Tuesday, June 5, 2018 3:59:10 PM > Subject: Re: Europa-List: Fuel management > >> > > If I might ask, which totalizer did you chose? > > Sent from my iPhone > >> On Jun 5, 2018, at 7:27 AM, crouto wrote: >> >> >> I tried it with just the footwell lndicator. Bubbles made it inaccurate. > I could purge it by horsing the airplane into a very steep zoom. The bub > bles could be seen climbing the gauge tube but in addition to the anxiety s > uffered by the passenger, it did not always completely purge the gauge syst > em. >> So I put in a totalizer and 1 red cube thinking I could factor in the ret > urn amount. I couldn=92t. >> So in went another red cube in the return line and, hey presto, fuel adde > d equals fuel used. I have a straight 912 and a long ranger tank. In a 24 > gallon burn (indicated) the added fuel is within 0.3gallon less than indic > ated. I consider this a safety margin and have no plans to mess with it. >> The footwell tube is useful for indicating the aircraft is fueled, but in > the monowheel tail down stance it is not an accurate quantity gauge. By t > he way, since the installation of the long ranger the bubble problem seems > to have nearly disappeared. Go figure. >> Creighton Smith > > > > ------------------------------------------------------------------------------------- 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.