shawnd Posted July 9, 2024 Report Posted July 9, 2024 I am trying to decide on EIS integrated with G3X Touch or a separate GI-275 unit. The GI-275 photos on Garmin's site has a good representation of what the display would look like for a 6 cylinder turbo engine. Specifically, RPM, MAN, and TIT being available with bars for the CHT & EGT for the cylinders. See [1]. Unfortunately, the G3X Touch product page [2] isn't as complete. Wondering if someone with a G3X touch EIS on a 6 cylinder turbo engine can post photos/videos of what the "engine strip" contains as well as the contents of the dedicated engine pages. Thanks! [1] https://www.garmin.com/en-US/p/897577 [2] https://www.garmin.com/en-US/p/682215/pn/G3X-TCERT-14 Quote
hubcap Posted July 9, 2024 Report Posted July 9, 2024 This is the full display on my G3x which is a Turbocharged 6 cylinder Continental TSIO360-LB. I typically use the full display when in take off or landing mode or when leaning my mixture. I use the strip on the left when in cruise. 1 1 Quote
shawnd Posted July 9, 2024 Author Report Posted July 9, 2024 Thanks - do you know if % power is calculated by the unit? And where is that potentially shown? Quote
Pinecone Posted July 9, 2024 Report Posted July 9, 2024 I have not found a % power. Might be in the experimental, so coming later. But I fly LOP, so it is pretty easy. Fuel Flow x 13.7 (turbo engine) = HP Quote
PT20J Posted July 9, 2024 Report Posted July 9, 2024 % Power is set up in configuration mode. It uses rpm, MAP, fuel flow. You input whether the engine is Lycoming or Continental and whether it’s NA or turbocharged and the rated power at max rpm and the MAP for rated power if turbo. It’s pretty accurate LOP but reads higher than actual (maybe about 5% high - I haven’t really paid a lot of attention to it) ROP. 2 Quote
shawnd Posted July 9, 2024 Author Report Posted July 9, 2024 Thanks for the explanation. How are you comparing accuracy of the HP, via POH numbers? Quote
Ryan ORL Posted July 9, 2024 Report Posted July 9, 2024 2 hours ago, shawnd said: Thanks - do you know if % power is calculated by the unit? And where is that potentially shown? It's being shown in that screenshot already, just between the MAP and RPM displays. Quote
shawnd Posted July 9, 2024 Author Report Posted July 9, 2024 Just now, Ryan ORL said: It's being shown in that screenshot already, just between the MAP and RPM displays. Hah - that it is - missed it completely. Thanks Quote
PT20J Posted July 10, 2024 Report Posted July 10, 2024 2 hours ago, shawnd said: Thanks for the explanation. How are you comparing accuracy of the HP, via POH numbers? Yes, just comparing to power chart in POH and I also noted that the airspeed is slower than I would expect for the indicated % power. There was a thread about this on BT IIRC. Garmin doesn’t publish the algorithm. I know George Braly has stated repeatedly that all the engine monitors are inaccurate in calculating power except the Cirrus Perspective for which he supplied a proprietary algorithm. Quote
toto Posted July 10, 2024 Report Posted July 10, 2024 +1 I’m not flying a turbo, but on my four-banger flying ROP the percentage power is always higher on the G3X than the flight manual. I use the charts from the flight manual, and assume that the G3X is always going to be off. Quote
shawnd Posted July 10, 2024 Author Report Posted July 10, 2024 Interesting, we should be able to work with Garmin to fine tune this, esp if they could figure out GFC porpoising for our beloved Mooneys! I can give it a shot once my airplane is up in the air again. Quote
Pinecone Posted July 10, 2024 Report Posted July 10, 2024 14 hours ago, Ryan ORL said: It's being shown in that screenshot already, just between the MAP and RPM displays. DUH Quote
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