Chevelle
Posts: 548
Joined: 6/19/2003 From: Fairport, NY, Status: offline
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Oh sure. I read all the knocks against Hitec but figured, hey, that are a major brand and have lots of product out there. They are bound to upset a few customers and probably some of them are just over reacting to a very reasonable problem. NOT SO. I regret ever selecting them and I will never do business with them again. Here's why: PART 1: My letter to Hitec dated June 22... quote:
I have a BalsaUSA 1/4 scale Pup that I have now flown for the first time. Right from the start I am experiencing a glitching problem. I hope you can help solve it for me. Transmitter: JR 662 Receiver: Hitec Supreme Rx P/N 23872 Ch.58 Rcvr Battery: 4.8v 1400 mah Servos: Hitec HS475HB (Throttle, 2 Ailerons) Servos: Hitec HS635HB (Rudder, Elevator) Engine: Zenoah G26 Everything was purchased brand new for this airplane with the exception of the transmitter. It is one year old. Attached are some pictures taken during assembly… This shows the servo installation. It also shows the battery and receiver mounting. Both the battery and receiver are wrapped in foam. The receiver was then taped on top of the battery and they are both suspended in the fuselage to minimize the effects of vibration. You can also see how the receiver wire enters a guide tube. (The final assembly is a bit neater. The wire has less slack and is secured in the tube by a piece of silicone tubing as a plug.) These show the guide tube for the antenna. As you can see, the antenna wire is maintained straight all the way through the airplane. This picture shows the engine installation. Note the aluminum lining of the firewall. When the cutoff switch was installed (after this picture was taken) this aluminum panel was connected to the engine case to serve as a shield. No glitching was experienced during the normal ground checks. Takeoffs and close in flying were also no problem. The problem occurs when the plane is in the pattern and the furthest away. Almost every time the plane is straight in front of me, the glitch occurs. When it does, it seems to be in the elevator although once in a while the throttle glitched. The glitch is a momentary movement, not a fluttering. The elevator usually move up for an instant causing the plane to “bump” up. Since the plane is large and the glitch short, the plane did not get out of control. The effect is quite repeatable and I have noticed that it occurs when the antenna is almost directly pointing at the plane. (I do not move from side to side as the plane flies so the transmitter is essentially stationary the whole time. I also hold the transmitter pretty flat.) I was concerned about the possibility of engine interference so I did a ground test with a friend. The plane was on the ground perpendicular to me with the engine off. The transmitter antenna was shorted to about 1/3 the full extension. I slowly backed away from the plane while moving the rudder back and forth. I also moved the transmitter up and down covering the range from where the antenna was pointed below the plane to above the plane. At about 75 feet we were able to create the glitch. The elevator would twitch for about a half second or so. It would occur when the transmitter antenna was pointed slightly above the plane. I am well aware that the energy distribution from a pole antenna is the least at the tip but even so, this should not occur. It does not occur with my other plane that has the JR receiver in it. This is obviously a serious problem. Although the plane was never in danger, I am very uncomfortable with this situation. It may get worse to the point where I could lose the plane. Please let me know what my options are. I look forward to you response. Feel free to call me. Bob PART 2 Hitec's Response dated June 23... quote:
Hello Bob, Thank you for your detailed information and pictures. It is very helpful to get all the information. Please send the receiver in for evaluation. If you could please fill out the attached form and include a copy of this email I would appreciate it. Regards, Tony Ohm Service Manager Hitec RCD USA, Inc I packed up the receiver in all the orginal packing materials. I called and talked to Mr. Ohm. I expressed my concern that the turn around would take a long time. He assured me that they will look into it as soon as they receive it. I again expressed my concern that I may miss an event because of this issue. He assured me that they will do what they can. I asked if a replacement could be sent to speed things up. I provided a copy of the receipt that showed I bought the receiver in March. Mr. Ohm said that too much time had gone by. It did not matter that it did not go into the plane until June. (Note the file names on the pictures.) I specifically asked if I could receive it by Friday, July 2. Mr. Ohm assured me that they would look at it as soon as it arrived and would do what they could to get it to me by Friday. (He now denies saying this.) PART 3 The result as of June 30... The receiver arrived at Hitec at 9am on Monday. I called on Wednesday to check on the status. They had not gotten to it but was told that they would get to it by the end of the day. With my deadline approaching, I was not feeling to comfortable about all of this. I checked back later in the day. They were just getting to it. The bottom line is that the receiver was at fault. The oscillator was detuned which reduced the sensitivity. This is of MAJOR concern to me. Obviously their quality control is poor to allow such a product to go out. I will never risk a $100 airplane on this kind of quality much less a $1000 1/4 Sopwith Pup that tookl six months to build. Mr. Ohm said that the earliest it could go out Thursday. They would ship it FedEx if I paid for it. ME? I already paid $15 to send it to them 3-day express. (FedEx would have gotten it there on a Saturday would would have been a waste of money.) Now they want me to pay another $33 for overnighting. Frankly, I don't want it. I want my money back but they will not do that. PART 4 I will never do business with Hitec and I highly recommend that you do not either. They quality control is obviously poor and their customer service is just as bad. DO NOT RISK YOUR PLANES on their stuff. Good Luck.
< Message edited by Chevelle -- 6/30/2004 5:07:49 PM >
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