N201MKTurbo Posted November 28, 2016 Report Posted November 28, 2016 I was coming back from Yosemite today and I think my J goes plenty fast. It took just over two hours! 1 Quote
ArtVandelay Posted November 28, 2016 Report Posted November 28, 2016 14 hours ago, N201MKTurbo said: I was coming back from Yosemite today and I think my J goes plenty fast. It took just over two hours! Looks like you had some help, I'd imagine the ride was bumpy? Quote
N201MKTurbo Posted November 29, 2016 Report Posted November 29, 2016 9 hours ago, teejayevans said: Looks like you had some help, I'd imagine the ride was bumpy? I came back at 15500. everybody was reporting moderate and a few severe. It was glass smooth at 15500! I was expecting the worse, but was giving thanks that it didn't happen. Quote
bradp Posted November 29, 2016 Report Posted November 29, 2016 Last night 50 ROP at 9500. Amazingly, somehow inside the DC class B. The ASI seems accurate. However the little card there to calculate TAS is off... it was indicating180 MPH = 160 ktas. Nope ... Quote
Marauder Posted November 29, 2016 Report Posted November 29, 2016 Last night 50 ROP at 9500. Amazingly, somehow inside the DC class B. The ASI seems accurate. However the little card there to calculate TAS is off... it was indicating180 MPH = 160 ktas. Nope ... Before Clarence's eagle eyes catch this, do you always run with a slight negative on your ammeter?Sent from my iPad using Tapatalk Quote
bradp Posted November 29, 2016 Report Posted November 29, 2016 Yes needle is always slight negative when the battery is not charging. Voltage on the bus is 13.4 or 13.5. It's been like that since the first day I've had it and always accepted it. You should see what happened when I almost ran down the battery... the alternator was definitely charging the battery properly then. Thoughts? I'm scared of electrons in general. Sent from my iPhone using Tapatalk 1 Quote
ArtVandelay Posted December 1, 2016 Report Posted December 1, 2016 On 11/29/2016 at 1:17 PM, bradp said: Yes needle is always slight negative when the battery is not charging. Voltage on the bus is 13.4 or 13.5. It's been like that since the first day I've had it and always accepted it. You should see what happened when I almost ran down the battery... the alternator was definitely charging the battery properly then. Thoughts? I'm scared of electrons in general. Sent from my iPhone using Tapatalk I had same problem, replacing voltage regulator fixed, I kept the old one as a spare, was able to fix it by adjusting a pot. 1 Quote
bradp Posted December 1, 2016 Report Posted December 1, 2016 Am I understanding correctly ... voltage regulator to Alternator to alt field to circuit breakers. Where does the ammeter measure in the system? If I have a poorly functional regulator I will be not asking the alternator to properly provide current to keep the battery adequately charged risking running down the battery? Attached is an image from 2014 showing the same. Optimal voltage across the bus is ...? EDIT: 13.75-14 V. So I'm a little low. Been on same battery since 2014 without any apparent issue. I should check the voltage across battery after a flight to determine adequate charging. Goes along with teejavevans voltage regulator replacement. Can I measure the current across the shunt ammeter gauge to determine its accuracy? Thanks. Quote
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