Cgjunk2 Posted Friday at 09:20 PM Posted Friday at 09:20 PM Hello, Sorry for the dumb question, but I haven't been able to find a clear answer to this in a while. Now that I'm playing more with the internal cargo feature, I've become more curious to learn what it measures. The EPR gauge on the bottom left area of the pilot instrument panel is named in the manual as the Engine Pressure Radio instrument (#2 in picture). Is "radio" a typo, or is it meant to be "ratio"? Also, am I correct in assuming the instrument is measuring the same thing as engine torque (expressed in percentage of total), with the red bugs indicating some sort of maximum for the current conditions? Also, why are there three separate red bugs? Any help understanding this instrument is greatly appreciated!
admiki Posted 22 hours ago Posted 22 hours ago Yes, it should say ratio. I am not sure what those numbers mean, but they are not percentage. @AeriaGloria might help with that. IDK if you noticed, but red marks move up and down, depending on environmental conditions (altitude, temperature, humidity). From bottom, marks represent cruise power, max continuous and max allowed. OTH, going over max allowed will not do anything except drooping your rotor. According to manual, you can fly up to 60 minutes with collective under your armpit. I did test it once, went a bit over 60 minutes with nothing going wrong and then got bored and jumped out. 1
Cgjunk2 Posted 7 hours ago Author Posted 7 hours ago 15 hours ago, admiki said: Yes, it should say ratio. I am not sure what those numbers mean, but they are not percentage. @AeriaGloria might help with that. IDK if you noticed, but red marks move up and down, depending on environmental conditions (altitude, temperature, humidity). From bottom, marks represent cruise power, max continuous and max allowed. OTH, going over max allowed will not do anything except drooping your rotor. According to manual, you can fly up to 60 minutes with collective under your armpit. I did test it once, went a bit over 60 minutes with nothing going wrong and then got bored and jumped out. Thanks for the info! Yes, I've noticed the bugs moving throughout the flight. Hopefully somebody can provide more info on what the number scale means. It's interesting that the manual indicates you can fly with full collective for 60 min. Does this apply to the real thing as well? I remember a few years ago reading about a brand new mi8 on it's delivery flight that ended up shearing the main rotor shaft. It seemed like the accident was due to flying with too much torque, for too long, at high gross weight. I never found much source information on that accident, and actually I'm not even sure it happened lol.
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