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All Forums >> RC Airplanes >> RC Jets >> Turbine Clinic >> SimJet Turbine Direct Support >> Simjet 3000AES thrust issue
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Simjet 3000AES thrust issue - 7/16/2003 3:31:40 AM   
BirdofpraY



Posts: 841
Joined: 3/25/2002
From: Citrus Springs, FL, USA
Status: offline 		Ok, Keven/Ed you told me to recheck my settings in my IRD, and it does say set to HIGH. I put it on my digital thrust stand and I am getting 24.6 lbs of thrust at 31o Cel. I tryed it a gain later in the evening when it was 21o cel. and I was getting 24.10 lbs out of it. Now at Florida jets it said 29.5 lbs on your stand and that was before I set the settings to low to fly in my Hotspot. Now I am building a much bigger jet I need it to be 29.5 lbs, what I paid for. In my opinion it looks like the IRT does not set the ECU right and because there is lack of information in the ECU it makes it really difficult to debug this issue. please send me a new ECU or a IRT that works with my ECU properly 3.3.5 is the version.

Here are the pictures of the thrust level at high with the IRT next to it. Please advise......

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< Message edited by BirdofpraY -- Jul 16 2003 2:11PM >

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Simjet 3000AES thrust issue - 7/16/2003 3:32:39 AM   
BirdofpraY



Posts: 841
Joined: 3/25/2002
From: Citrus Springs, FL, USA
Status: offline 		pic 2 of settings

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3000 Thrust Issue - 7/16/2003 4:16:00 AM   
rcav8tr


 

Posts: 965
Joined: 12/18/2001
From: Milton, ON, CANADA
Status: offline 		Hi Dave

As discussed on the phone, I believe that there is either an issue with the engine itself or with your fuel pump. The temperature display for the indicated rpm is also out. Please send the engine in and we will have a look at it. Since it is under warranty, any required repairs will be covered and will be preforemd here in our facility.

Please ensure that you send the entire engine, with the IRT, so that we can test the entire set up.

Sincerely,
Ed

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Dealer for SimJet, Skymaster, BVM, JetCat, Yellow and much more.

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Simjet 3000AES thrust issue - 7/16/2003 7:37:02 PM   
BirdofpraY



Posts: 841
Joined: 3/25/2002
From: Citrus Springs, FL, USA
Status: offline 		ok, I am just going to post here as I get faster respone here.

I don't want to ship a perfectly good engine back as this is a great cost in shipping, it would be alot easyer and less expensive to ship just a ECU, PUMP, IRT and temp probe versus the whole thing. As I can see the pump works fine looks like its getting proper voltage. there are no air bubbles, there is no hesitation in throttle transitions so it looks like the combonation between the IRT and ECU not properly programming the ECU. This engine is Brandnew and has very littler run time and in warrenty.

Thanks,
Dave

< Message edited by BirdofpraY -- Jul 16 2003 2:43PM >

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Warranty Service - 7/16/2003 8:10:28 PM   
rcav8tr


 

Posts: 965
Joined: 12/18/2001
From: Milton, ON, CANADA
Status: offline 		Hi David

We no longer send out ECU's to rectify issues. Nor will we release the software that we use to update the ECUs. There is also no guarantee that changing the ecu will resolve either the thrust issue or the temperature display issue.

Our warranty service policy is no different than any other manufacturer. The customer pays for shipping to us and we pay for return shipping back to the customer.

Please forward the engine to us and we will resolve the issues that you have and return the engine to you as quickly as possible.

Sincerely,
Ed Miedzybrocki

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Dealer for SimJet, Skymaster, BVM, JetCat, Yellow and much more.

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Simjet 3000AES thrust issue - 7/16/2003 8:34:41 PM   
BirdofpraY



Posts: 841
Joined: 3/25/2002
From: Citrus Springs, FL, USA
Status: offline 		Ed!!!! This is not rocket science. Have Kevin call me I prefer to talk to him since he knows more about theses engines. I am not stupit, is every answer just send it back let us fix it... last time I sent a simjet engine back I did not get it back for months and you guys look like you have droped off the responce level that you use to have when you took over...

PS. I found the end of the Temp probe sticking out of the hole so that looks like the reason for false temp reading.

Dave

< Message edited by BirdofpraY -- Jul 16 2003 3:49PM >

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Simjet 3000AES thrust issue - 7/16/2003 9:07:31 PM   
seanreit



Posts: 6943
Joined: 4/17/2002
From: Cedar Park, TX, USA
Status: offline 		Ed, did my wheel stuff go out yet?

Sean Reitmeyer

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Simjet 3000AES thrust issue - 7/16/2003 9:17:07 PM   
rcav8tr


 

Posts: 965
Joined: 12/18/2001
From: Milton, ON, CANADA
Status: offline 		Hi David

I will talk with him when he returns.

Ed

[QUOTE]Originally posted by BirdofpraY
Ed!!!! This is not rocket science. Have Kevin call me I prefer to talk to him since he knows more about theses engines. I am not stupit, is every answer just send it back let us fix it... last time I sent a simjet engine back I did not get it back for months and you guys look like you have droped off the responce level that you use to have when you took over...

PS. I found the end of the Temp probe sticking out of the hole so that looks like the reason for false temp reading.

Dave [/QUOTE]

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Simjet 3000AES thrust issue - 7/17/2003 12:31:55 AM   
BirdofpraY



Posts: 841
Joined: 3/25/2002
From: Citrus Springs, FL, USA
Status: offline 		Its on its way, you should have it by monday. Check the temp probe maybe it is faulty too..

Thanks,
Dave

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Simjet 3000AES thrust issue - 7/23/2003 7:57:13 PM   
rcav8tr


 

Posts: 965
Joined: 12/18/2001
From: Milton, ON, CANADA
Status: offline 		Hi David

We have received your engine. Please check your Yahoo or PM box for an e-mail regarding what we found when we unpacked it. Please advise as soon as possible.

Ed

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Ed Miedzybrocki - Great Northern Models - 905-320-7979
Dealer for SimJet, Skymaster, BVM, JetCat, Yellow and much more.

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Simjet 3000AES thrust issue - 7/23/2003 8:37:42 PM   
seanreit



Posts: 6943
Joined: 4/17/2002
From: Cedar Park, TX, USA
Status: offline 		Ed, question came up down here in Austin, can we get the same 3" wheels and brakes you sold me for the 3/8" strut, can we get those for the 1/2" strut? If so, please let me know by email how much for two sets.

Thanks,

Sean

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Simjet 3000AES thrust issue - 7/30/2003 8:50:01 PM   
KevinM



Posts: 285
Joined: 1/8/2002
From: Toronto, ON, CANADA
Status: offline 		For the benefit of any lurkers...

This 3000 was received and immediately inspected. The thermocouple was found to be damaged due to physical stress (not wear) and had to be replaced before any testing could take place. Once put on the stand, we found no lack in thrust based on factory specs, and that the turbine was putting out exactly the same thrust as what it was before the customer took delivery. Proper operation of the IRDT was also verified, including derating then turning back up the maximum thrust of the turbine, which also functionned exactly as advertised.

Although the customer still disputes the thrust output based on his measurements, we can only rely on our own measurement equipment. (Incidentally, our measurements concurr with the measurements taken by SimJet Denmark before we received the turbine.)


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Simjet 3000AES thrust issue - 8/1/2003 7:58:21 PM   
BirdofpraY



Posts: 841
Joined: 3/25/2002
From: Citrus Springs, FL, USA
Status: offline 		Ok, I got it back today and it has only gotten worse than before, Kevin you stated that you two tested it and it was putting out to your specs, well please enlighten me what your specs are. I have tested again and its only putting out 18 lbs now and look at the RPM's at full throttle 110,000 it was putting out 124,000 before I sent it to you, and the out side temp is a lot cooler(79o F) than before as you can see in the pictures. Do you have any suggestions how we are going to fix this?

When I first got the engine it was putting out 28.8 lbs on my scale now it doest even come close. I feel there is a problem in the ECU and the IRDT, But there is no way to be sure what the problem is due to lack of information I can get from the ECU. I need this to be putting out at least 28 lbs.

Dave

PS I will test it once more tonight when it is alot cooler.

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< Message edited by BirdofpraY -- Aug 1 2003 3:07PM >

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Simjet 3000AES thrust issue - 8/1/2003 8:01:11 PM   
BirdofpraY



Posts: 841
Joined: 3/25/2002
From: Citrus Springs, FL, USA
Status: offline 		Test at idle. This just shows you my scale is fairly accurated at idle. This is the range of idle the engine should put out.

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Simjet 3000AES thrust issue - 8/1/2003 8:02:45 PM   
BirdofpraY



Posts: 841
Joined: 3/25/2002
From: Citrus Springs, FL, USA
Status: offline 		temp. at the time of testing.

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Simjet 3000AES thrust issue - 8/1/2003 8:42:31 PM   
BirdofpraY



Posts: 841
Joined: 3/25/2002
From: Citrus Springs, FL, USA
Status: offline 		yea I have changed the controller to High and this what it was producing. There is only Low, Med, and High settings. looks to me like the IRT is not setting the settings in the ECU. I too hope this can be resolved.

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