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RE: JetJoe OWNERS thread
Why would Gabe even have to do that? that is if all JetJoe Turbines are all perfect condition leaving China! What about the guys who order direct like Chris and get a real bummer of scrap metal. What about guys like me who re engineered CCs and lube lines on the early ones to get them to even run and then after many hours running found basic engineering faults. You will have a different view after 300 minutes on the FADEC. Paul Luis |
RE: JetJoe OWNERS thread
I might be out on left field here, but isnt it standard practice to test the turbine your about to sell here in the U.S.? I'm pretty darn sure all JetCat turbines are tested at the US Facility before they are sold to consumers, I know my Artes Engine was tested before it got to me...why would JetJoe be any different? Listen, lets not belabor this and act like its some surprise to you after numerous postings that JetJoe turbines were not up to par when released out of China, truthfully I believe everyone here knew damn well that the turbine was a gamble to begin with and by you ordering one shows that you took a chance.. fine it was a "bummer of scrape metal"... You tinkered, you lost...deal with it. Frankly I'm tired of dudes like you stopping at no end to make sure the reputation of a product is pernamently stained because of you got a bad deal. I was simply stating that Gabe Brown is indeed "tuning" these turbines before selling them to the general public and didnt intend for that to solve the mysteries about your bad deal with JetJoe. Luis I'm just stating my view. That is only after buying THREE JJ1400's turbines (do you want the engine numbers?) and running them for hours not just minutes. Easytiger-Curtis who started this thread and I wanted to give Joe some slack and support JJ. However long since we have both divested of all our China jet junk. Maybe you might look at it differently if yours had melted after a little running as Joe was using the completely wrong metals.[:@][:@] How about Joe's emails to Wren, what does this do? how does this work? Hope my reps can do my QA/QC testing for me bla bla. Look back on this thread I'm a JJ user who assisted many other JJ users and helped with re engineering and fixes that worked. Like dump your CC, remove the tunnel O rings, check the NEW fuel manifolds for blockages, increase the lube flow to rear bearings. I wrote a guidance for one S American JetJoe rep who then plagered it as his own fixes and advice. Paul |
RE: JetJoe OWNERS thread
Well i just want to add my experience and my opinion nothing more.
I dont know how the current production of JetJoes is doing but the earlier ones were not good enough to be released as a working turbine to the customers and of course i take the responsibility of my actions, that's why i am calm after buying a JJ1400 which never run directly from the factory. Of course if someone was selling those early turbines in USA as airworthy and ready to fly he would probably be in big trouble right now. Knowledgeable men couldn't make it work because the tolerances were all over the place and it wasn't a matter of just replacing a defective part. so i decided not to return the engine for repair as i knew that if something is that bad from the beginning there is no point in loosing more money. I have no doubt that The current production batch is far superior than the early ones but the price range is not that competitive any more because there are now other turbines in the price range that i think have superior construction. Chris |
RE: JetJoe OWNERS thread
I totally agree with the ideas posted with regards to testing of turbines. I am a builder of homebuilt turbines for years and I believe that there is no perfect match of electronic programming when it comes to mechanical perfection.
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RE: JetJoe OWNERS thread
The more stuff I read here, the happier I am that I own two flawless WRENS!!!!!!!!!!!!!!!!
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RE: JetJoe OWNERS thread
PREACHHAMES, did you test that pretty F-16 yet ?
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RE: JetJoe OWNERS thread
i3dm,
I e-mailed Tam of Tamjets some pics of my installation and there was a cross bar brace missing from my kit. He sent one out to me Friday of last week and I should receive the part tomorrow. Taxi tests, brake tests, c.g. and range checks have all been performed. I have a midweek worship service on Wed. evenings and a meeting this Thursday evening, so I am shooting for my maiden to be Friday evening. I will have video of the flight. Greg Hames |
RE: JetJoe OWNERS thread
geh3,
You must have skipped over all of my posts on Gabe Brown (U.S. distributor of JetJoe = jetjoeus.com) and my JJ1400. 2 hours & 4 minutes of flawless performance and counting. Greg Hames |
RE: JetJoe OWNERS thread
ok THAT'S GREAT. It's nice to have reliable stuff good luck...
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RE: JetJoe OWNERS thread
I want to share my experience with the JJ1400 with everyone here:
Mine was bought second hand, from a guy who did not want to deal with it anymore, it started as an unreliable running JJ1200 which JJ converted to a 1400. Even after the conversion it did not run reliably. Knowing that very very few parts can go wrong on a turbine and even the worst designs will run, just less efficiently, I decided to buy it. It is one of the very earliest 1400's, #622 to be exact, I've had it with me for over a year with no success on tweaking the FADEC settings. After a while I put it aside and used the ECU to convert an airstart RAM750F to full autostart which has run perfectly with the new ECU, then came Gabe from Jetjoeus, he encouraged with with words of support and his commitment to help me with my JJ. after disassembling the turbine, I found out that the only thing wrong seemed to be clogged needles on the fuel ring, so I ordered one from Gabe. I installed it on my JJ1400 and decided to try it last weekend, I ajusted the ECU RPM settings back to the JJ, but inadvertently forgot to adjust the Accel/Deccel delays as per the experience of others (very unresponsive) my settings were values of 15 for Accel and Deccel delays, these were used for the RAM as it does spool up VERY fast. Did my start sequence, everything went well, turbine was at idle in about 45 seconds, slowly accelerated expecting the known flame throwing, guess what!! I achieved 160,000 RPM's on the first run and then deccelerated/accelerated back and forth a few times IT WORKED PERFECTLY FOR THE FIRST TIME!!!. I guess the point I'm trying to make is that yes, we all know that the early ones were a pain, as time goes by, a non running JJ1400 is almost no longer an issue. To those of us who have the early ones, I would suggest you at least try the fuel ring change, it will cost you probably less than a few beers on a friday night and you could have a running turbine. For the record, I had over 110 cycles and over 200 minutes of test running at idle and various levels of RPM's before the fix, my CC is in perfect shape. |
RE: JetJoe OWNERS thread
After the weather clears out here in N.C. (showers forcasted till Saturday) I will finally be able to maiden my Tamjet F-16.
Ruizmilton, Gabe is very sharp and enjoys helping turbine owners. He called me yesterday out of the blue to see if I had flown my JJ1400 powered F-16 yet. I still enjoy the HOB F-86 you sold me last year! Thanks again, Greg Hames |
RE: JetJoe OWNERS thread
Dear RUIZMILTON,
I too purchased my JJ1400 used. It was originally owned by a person of questionable character and integrity as I later found out, EasyTiger. I was told it was serviced and in perfect running order. It wasn't. It would explosively flameout when every the engine was quickly throttled up or down. I finally contacted JetJoe in China about the problem. From the serial number, they tracked the history of the engine. They determined it was from a batch with known problems. They asked me to send it to China and they would repair and test it for free. I have done this. JetJoe informs me that they started the engine 3 times and ran it for 30 minutes. During which it was throughly tested and the ECU parameters tuned up. I was impressed with the no questions service they provided. JetJoe repaired an engine I did not originally purchase, yet they made their product work even though it was past the warranty period. Great Job. It is now in a plane awaiting a nice day for a test flight. Hopefully, the weather will clear here in the next few days. JetJoe is making strides to improve their product and provide first class service. All new companies go through growing pains. Regards, DW_Crash |
RE: JetJoe OWNERS thread
Has anyone measured the actual thrust these are putting out lately?
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RE: JetJoe OWNERS thread
Lucky you[8D][8D]
I bought three JJ 1400's when Joe knew himself first hand the Combustion Chambers were total crap and made of the the totally wrong metals. Did he fix my three, replace parts defective or exchange customers like Chris's JJ1400. [:@][:@] SIMPLY ANSWER? NO[>:][:o] he could not be bothered to no even email back. [:-][:-] I later had first hand the confirmation of Joe's copying of Wren excellent MW54 but what a shabby result in Chinese poor engineering. Note first the poor casting and resulting extreme cuts into the turbine wheel. Note the poor engineering fit of the bearings to tunnel. Note the inconsistant lube fuel rate to rear bearings. Note the veriable quality of fuel manifolds resulting in hot spots. Note the partial "After Care" if you are out spoken, vocal in regards to QA/QC of using the totally wrong metals. Its non existant he cannot accept his patent errors in production. Paul |
RE: JetJoe OWNERS thread
ORIGINAL: dw_crash I too purchased my JJ1400 used. It was originally owned by a person of questionable character and integrity as I later found out, EasyTiger. I was told it was serviced and in perfect running order. It wasn't. It would explosively flameout when every the engine was quickly throttled up or down. Regards, DW_Crash Paul |
RE: JetJoe OWNERS thread
Hello RCDRIVER22,
EasyTiger did not specify who serviced the engine before I purchased it. I only found out later that he purchased parts and had somone else service it. Then, Joe looked up the serial number and found it had defective parts that caused my problem. It was fixed quickly and without charge. They even paid the postage back ($60). This was only a few month ago. JetJoe seems to have really improved their service and products from what you describe. I would try contacting JetJoe again about your engines. Maybe, they will do for you what they did for me. DW_Crash P.S. My problem was trusting EasyTiger in the first place. That was the start of my headaches...... |
RE: JetJoe OWNERS thread
If you want a good 14 lb turbine you cannot get a better one that the wren MW54 MKIII kit... awsome and they don't self destruct
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RE: JetJoe OWNERS thread
Geh3,
True. But, in this neck of the woods, they are a large number of PST600Rs. Probably, becasue there is great local support. SimJet, JetCats, JDM and others also have good engines. But, I have observed that each has its own quirks and personalities. It comes done, for me to support. There it becomes who is the best available support in your area. All of these engine work. DW_Crash |
RE: JetJoe OWNERS thread
ORIGINAL: dw_crash Hello RCDRIVER22, EasyTiger did not specify who serviced the engine before I purchased it. I only found out later that he purchased parts and had somone else service it. Then, Joe looked up the serial number and found it had defective parts that caused my problem. It was fixed quickly and without charge. They even paid the postage back ($60). Whether 2nd hand or new JJ its still 'Buyer Beware'. Also time flys by waiting for Joe to do the decent and correct his factory errors by his early direct sale turbine customers. I estimate there are 230 unhappy JJ turbojet owners worldwide, thats 230 Jet Junk 'door stops' waitning for new buyers. |
RE: JetJoe OWNERS thread
PREACHHAMES, did you fly that F-16 yet ? [8D]
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RE: JetJoe OWNERS thread
i3dm,
The weather has broken and the wind will be settling tomorrow. My local flying club www.wham-rc.org has their monthly meeting tomorrow, and I will be flying my F-16 for the 1st time after the meeting. The maiden flight will be recorded and posted on www.youtube.com I can't wait! Greg Hames |
RE: JetJoe OWNERS thread
RCDriver,
I have sent a PM to explain this matter of EasyTiger. This forum/Thread is not the correct place for this discussion. Lets keep to Jet stuff here. I await the end of a bad cold so I can test fly my JJ1400 in the rebuilt Reaper. Should be interesting. I also have a AV8R with a Hawk-14 to test fly. Could be a busy day of flying.... DW_Crash |
RE: JetJoe OWNERS thread
rcdriver22, I saw DW's Jetjoes, and the fireballs. Understandably I was not impressed with the hardware either.... But as DW says, it is encouraging that on some level Jetjoe is trying to fix things. It may not be a universal fix (at least at this point), but encouraging, none the less........
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RE: JetJoe OWNERS thread
Maiden flight is complete!
Link to YouTube will be coming soon as it finishes downloading. I definitely learned quite a lot about the flight characteristics of the jet from this flight. I almost performed a cobra maneuver on take off (pulled way too much elevator at rotation causing the jet to bleed off considerable air speed), but regained control of the angle of attack, tucked the gear up and climbed out in a shallow ascent. Once I trimmed it for straight and level flight (3 clicks up elevator and 1 click right elevon), I made a couple of passes left to right then right to left. Total flight time was only around 3.5 minutes, but it felt longer because I was concentrating on every movement of the jet through the air. After extending the gear, I entered the pattern for my landing. I reduced the power too much on my final approach and it descended quickly! I knew that I had the runway made so I made the best of my approach knowing that adding power would not help because of the turbine lag. It was more of a "carrier" type landing than a nice gentle touch down, but the Tamjets F-16 is very durable and showed no stress. The JetJoe JJ1400 turbine performed flawlessly and runs like a champion! It flies the F-16 very well and I had no reservations about the powerplant at all with over 2 hours of issue free run time. I'm looking forward to flying the jet again so I can apply what I learned from this maiden flight = 1. Hold slight back pressure on take off roll instead of pulling 1/2 deflection on elevator for a nice rotation and climb out. 2. Keep throttle around 50% on final approach to keep the rate of descent under control. Hope to fly her again tomorrow if the weather continues to be favorable, Greg Hames |
RE: JetJoe OWNERS thread
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