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http://dynonavionics.com/cgi-bin/yabb2/YaBB.pl?num=1203300216/5#5 The post above details how I connected my HS34 and GNC 300 XL. The 300 XL is fully functional with altitude from the EFIS 10A and "auto slew" plus OBS using it with the required MD.

A clarification to the above "I can now select the HSI course on the HS34 using the Course Select knob when I have selected "HOLD" on the HS34 without a message light." This should read --when I have selected "HOLD" on the MD-41. The message light refers to the message "No Course Input"

In the "D100 to Garmin xl300" topic, I outlined my experience with the 300XL installation. My post was dated 21 Feb 08. The 300XL is fully functional since then. Hope this will help. Cheers Bob

With reference to my previous reply, I contacted Dynon and they confirmed that the "Course Select" on the 300XL is Label 100 and should work. I went to my aircraft and conected Pin 12 & 24 on the HS34 to pin 32 & 33 on the 300XL so that they are now both connected with Arinc 429 Input and Output...

Garmin 300XL, EFIS-D10A, HS34 Here is how I connected and set up My EFIS D-10A/EMS D10/HS34/MD41. Wiring from the GNC 300XL was done using the downloaded GNC 300 Installation Manual from the Garmin site. The HS34 was connected as per the EFIS D-10A App 6-15. The GNC 300XL and MD41 kept giving a...

Hi, I didn’t read the bold print at the top of the HS34 pin out and got a mindset that the male D-sub was the one on the harness where it clearly states it is on the HS 34. Of course it didn’t power up. I mention this just in case, in the unlikely event, there are others out there like me.

I see the may Sport Aviation has a screenshot of the EFIS with CDI and Glide Slope and wind arrow. Looks good.

Howdy, Now that I have a Dynon EFIS and EMS I have installed an external power plug. I searched around for info on this with regards to the correct wiring. On the external plug the short + pin is jumped to the large + pin and this supplies power to the contactor to join the external power to...

Howdy, I have an EFIS D10A and An EMS D10. My backup instruments are; standard vacuum AI, VSI, ALt, AS and elec T/B. I would like to keep my backups (for IFR), but with this there is a space problem in that I would be unable to install an EFIS D100, which would be the perfect solution to display...

Supplemental: I believe the “protocol” for commercial aircraft is to “Cancel the Master Warning Light” (and bell or chime) before proceeding with any “Drills” or “Checklists” so as to eliminate any distractions. I understand your reasoning but I am providing this for information purposes...

Hi, I went flying today and the "order" function worked fine. With respect to the red warning light, mine is placed right in front of me at the top of the panel so that I can't miss it. At night it would be nice to be able to cancel this, as it could be very distracting if dealing with a...

In the new release, my warning light stays on after "ack" the red warning text on the EMS D10. I have three fuel tanks and normally leave one with minimal fuel (in the red). In the previous release I could cancel the aural warning and the warning light went out even though the fuel tank quantity...

Hi, I went out and connected my USB MS GPS from MS Streets and Trips 2006 and the serial connections to the EFIS 10A and EMS 10 and the program downloaded all the data as advertised. I followed the instructions and it all came up in MS Excel. Never having used Excel before I eventually...

Thanks for the info. It costs $45 with on line discount less shipping. I've ordered one so will post results after I fly with it. Bob

Or a check valve? I would hate to mess with the fuel system without knowledge as to what I am doing, so any comments are welcome. Bob

I am wondering if a mini-surge tank after the boost pump might solve the problem. Anyone with any ideas? Bob

Flow Scan fuel flow shows a fuel flow of 25 L/hr with the boost pump off and 34L/hr with the boost pump on, both after reaching a steady state (about a minute) with no power change. (Similar results at different power settings) The boost pump is about 25” before the Flow Scan. I don’t quite...

Hi, I have this Dynon Sim EFIS and EMS in my FS 2004 and find it very useful in learning my way around the instruments in the safe environment of my chair. No mid-airs yet. It is an excellent way of becoming familiar with the instruments and menu selection so that it is second nature in...

Hi, As far as I know, all airliners have a magnetic compass. I know that the Airbus aircraft have the alcohol compass as does the B-2 (as seen in an "Aviation Week" awhile back). Also, for IFR I believe, one still needs a needle and ball even if you have several separate attitude indicators...

Hi, The restrictor has significantly reduced the fluctuations. About +/- 1 psi. Thanks, Bob