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JetCat P-130RX

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JetCat P-130RX

Old 04-26-2020, 11:30 PM
  #76  
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....bent pin in a connector somewhere?
Bob
Old 04-27-2020, 03:12 AM
  #77  
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No bent pins, throttle and Aux in the correct slot with brown cable facing out

Old 04-27-2020, 03:13 AM
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No green light on ECU





Old 04-27-2020, 03:54 AM
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Well I just smoked my ECU. Up to this point I had done everything right and at least the GSU was powering up. I had been very careful to have all the wires in the correct locations, polarity correct etc. In a dumb move I thought maybe the pins on the ECU for throttle were not working so I moved the cable over 1 spot to the right (airspeed I think) but I did not flip the cable. I smelled smoke right away and now it's really dead. The GSU does not even get power to it. This sucks because whatever was really wrong will now be masked my my Error reversing the polarity on the airspeed port.I am wondering if this can be repaired or am I out $500 bucks?
Old 04-27-2020, 04:50 AM
  #80  
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The power board can be replaced. Send it to George at jetcat USA
Old 04-27-2020, 04:55 AM
  #81  
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The latest software for the JetCat P130 now has auto relight!
Old 04-27-2020, 08:17 AM
  #82  
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Thanks. I just sent everything back to George. Pretty sad I had this thing for 2 days. Burning the board at the end was my fault however but it wouldn't have happened but wasn't having all the other issues.
Old 05-10-2020, 03:36 PM
  #83  
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So I got my engine back, reinstalled everything exactly as I did the first time and now everything is working. The question I have now is why does the GSU show 92 C in my 65 degree F basement!

I tried twice to calibrate the probe by holding down the select menu and waiting for the calibration message to appear before releasing it. The GSU then displays various information but the temp does not change. Stuck on 92C
Old 05-10-2020, 03:47 PM
  #84  
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Does that say 92 centigrade?
Old 05-10-2020, 04:55 PM
  #85  
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That's what it looks like to me. It should be more like 19C.
Old 05-10-2020, 05:29 PM
  #86  
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Here is a snip from the manual. Is this a misprint? Really, replace the fuel pump every 25 hours? That's a $350 pump! I dont recall this recommendation in the past with any of my other Jetcats and I cant say they ever replaced a pump at the 25 hour service either. What are you guys doing?


Old 05-10-2020, 08:56 PM
  #87  
Dave Wilshere
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Did you send the long lead back when you smoked the ECU? That could have had some trauma. Also If you pass some heat over the probe tip does the temp change.?
If yes do a complete reset ( next stage after Temp)

Dave
Old 05-10-2020, 09:06 PM
  #88  
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Pump question. I’ve run plenty to greater hours, but they do deteriorate as the brushes wear. It’s a component that is almost impossible to judge wear on in our use. The note alerts you to monitor performance near the 25 hours running, if starts fail or idle stability changes look at the pump.
Also, the motors are not what they used to be, the brush gear has changed material. It’s why all manufacturers are slowly changing their ranges to brushless.

To me it’s like the 25hour service recommendation, so many factors influence life of the components

Dave
Old 05-11-2020, 02:06 AM
  #89  
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Thanks for the reply Dave. I sent George our US Jetcat technician an email last night and he responded right away! Here is what he said about the method I was using to calibrate the EGT:

Unfortunately that method does not work with the newer style engines.

Once it’s powered up, press and HOLD the Run button, then press and hold the Limits button until you see the EGT calibrate, then you can release both buttons.

I will give this a try but thought it would be good info to share with everyone.
Thanks,
Old 05-11-2020, 03:24 AM
  #90  
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I just tried this...worked like a charm. I am now showing 21C which is about 70F
Old 05-11-2020, 03:48 AM
  #91  
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Is anyone using the auto restart feature? I have mine disabled. Seems like it could be useful if the restart was a really fast event otherwise it may be too little too late. I would like to learn more about this feature.
Old 05-11-2020, 11:00 AM
  #92  
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Cool new info for me too!
i really wouldn’t activate the restart. Still think it’s the most dangerous option ever dreamt up.
Old 05-11-2020, 11:17 AM
  #93  
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Originally Posted by Dave Wilshere
Cool new info for me too!
i really wouldn’t activate the restart. Still think it’s the most dangerous option ever dreamt up.
Definitely a double edged sword.
Old 05-11-2020, 07:19 PM
  #94  
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I have a buddy who has the auto restart in his KT turbine and it saved his airplane when on the first few flights the engine flamed out (presumably from an air bubble in the fuel filter) and then it restarted and he was able to land. And this was in an F-18F.

I think this is EXACTLY where the auto restart can save you. And then again, I don't run fuel filters.

Frankly, I'm going to turn on all the auto restart functions in my engines that have that feature.
Old 05-11-2020, 09:14 PM
  #95  
Dave Wilshere
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Then he should have done more ground running, shaking, flicking filters before taking off. It is not a fix for poor installations, it’s a fire hazard!

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Old 05-11-2020, 09:18 PM
  #96  
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Turbines are a fire hazard. Especially for people who don’t understand their limits and risks. Just like the auto restart function, one must know it’s risks and benefits and stratify accordingly.

We agree to disagree!
Old 05-17-2020, 05:52 PM
  #97  
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I tried the auto restart, it works ok but you better have some altitude. I think this is just a stepping stone for jetcat, the real benefit will be in the spark ignition motors. There is now a P220 with spark ignition , ECU is on the front board, starter is contact drive instead of magnetic because you need fast spool up. This stuff really geared toward UAVs but its cool to think we have auto relight , just like full scale. I believe you can have the auto restart as automatic , or pilot controlled on the p130.
Old 05-18-2020, 06:44 AM
  #98  
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The restart can be a negative if the flameout is low and slow or right after take off climbing out. The engine will be just spooling up when you are ditching.
Old 05-18-2020, 12:05 PM
  #99  
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Hey Vincent! My buddy bought that 262 you guys were talking about the year before!

This auto throttle thing has to be kept in mind in those positions in case of a flameout. It’s like running off the runway with the engine on or having an in flight control loss; there comes the point where the throttle is manually turned off.

Old 06-20-2020, 02:53 PM
  #100  
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Hi Guys.
I have a new P130Rx with a total of 16 runs on it now. The first 4 runs were uneventful but this weekend each of the 12 starts failed as the EGT never got past about 50 or 60C. After you realize its not going to start, just bringing the throttle and trim down and restarting the sequence results in a good start every time. So 24 starts for 12 runs. George at Dreamsworks / Jetcat had me take the Uaccel from 200 slowly to 250 but that did not fix the problem. The manual does not mention this particular error or the fix. Any ideas?
Thanks,
Dom

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