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RE: Falcon 40 (Exceed heli) Forum - 5/18/2008 10:16:46 PM   
Bones27



Posts: 677
Joined: 4/17/2007
From: Warner Robins, GA, USA
Status: offline 		Here's one for you fellas, I'm flying the Falcon along minding my own buisness, in a good stable 4 feet off the ground hover and all of a sudden I lost power to the main, did a nice piro and then it fell out of the air. I have been flying this 4-in-1 for a year and have never had a problem. I didn't hit anyhting or stall the blades so I didn't expect the mosfet to be bad. I removed the 4-in-1 anyway because I couldn't get power to the main, opened it up expecting to see the tell-tell volcano in the mosfet; nope the mosfet was laying in the bottom of the case, no volcano in it, just looks like it fell off the board. Is it possible to melt the solder off the mosfet and not do any damage to it?

_____________________________

Don''t let schooling interfere with your education.
Mark Twain

(in reply to dknovick)
       Post #: 5851

RE: Falcon 40 (Exceed heli) Forum - 5/18/2008 11:46:09 PM   
helojerry


 

Posts: 73
Joined: 4/17/2008
From: Phoenix, AZ, USA
Status: offline
quote:

ORIGINAL: UTM

Jerry,
i use the eflight CPP tail motor. it's more powerful than the stocker for sure. Still using the stock gear back there though.

They have these at my LHS for $11 which is OK. I looked at them and the output shaft/pinion combination is considerably shorter than the stock motor, ie the gear does not protrude as far from the body as the stock version. I wasn't sure if this would work for me or not. Also, the case size is exactly the same as the stock. Does this sound like the same thing you're using?

One other issue with the tail boom mod: I have the stock frame and landing gear and I can't remove the stock tail boom from the frame. She's glued in there I think. I may have to cut the boom off and then drill it out in order to replace it maybe. I can remove the tail motor holder OK by removing the retaining screw. I can pull the wiring harness out either. Once again, I think maybe there is some glue holding that in there as well. Worse case, I guess I could cut the wires about an inch from the connector and splice on some new ones. No big deal there I guess.

Jerry

(in reply to UTM)
       Post #: 5852

RE: Falcon 40 (Exceed heli) Forum - 5/19/2008 12:13:16 AM   
Bones27



Posts: 677
Joined: 4/17/2007
From: Warner Robins, GA, USA
Status: offline 		Jerry, the Century tail motors have a shorter shaft also. What I did was to turn the large gear around and reinstall it. If you look at the large gear on the tail you will notice that it has a shoulder on each side in the center. The shoulder is longer on one side than the other so depending on which way you install it you can make it closer to the boom or further away from the boom accommodating different shaft lengths on the motor.

_____________________________

Don''t let schooling interfere with your education.
Mark Twain

(in reply to helojerry)
       Post #: 5853

RE: Falcon 40 (Exceed heli) Forum - 5/19/2008 12:30:58 AM   
helojerry


 

Posts: 73
Joined: 4/17/2008
From: Phoenix, AZ, USA
Status: offline
quote:

ORIGINAL: dknovick


quote:

ORIGINAL: broggyr

I am so frustrated. No matter what I do, I cannot locate the source of the interference. I had a bad crash, and of course I don't have a specific part (rotor head ring). I replaced the servos, receiver, antenna lead, but occasionally I get interference that's so bad it becomes unflyable. Other times, it seems rock solid. Other than someone near me that has the same frequency that flies at the same times I do, I don't know what to do.


So it sounds like you've replace everything on the heli side? And you checked you TX antenna, opened it up and checked the bolt on the antenna (and it's connection). Is it just with the servos, or do you see glitches with the main and tail motor (I can't remember what you've said).

-Dave



With regard to interference, what is everyone doing with the antenna? I still have mine wrapped around the right skid, but that is a terrible thing for getting a good signal and avoiding interference. Wrapping it around the tail boom is out because of the electrical noise generated by the drive to the tail motor.

Jerry

(in reply to dknovick)
       Post #: 5854

RE: Falcon 40 (Exceed heli) Forum - 5/19/2008 1:57:47 AM   
disney1



Posts: 184
Joined: 11/21/2007
From: Orlando, FL, USA
Status: offline 		Evening Bones:
I just sent a 4 in 1 to Dknovick that had the same problem. Missing mofset. Never found the part. He put a new one in it for me. All fixed, better than new.
Ron Sr

(in reply to Bones27)
       Post #: 5855

RE: Falcon 40 (Exceed heli) Forum - 5/19/2008 3:14:35 AM   
broggyr



Posts: 542
Joined: 1/22/2007
From: Naugatuck, CT, USA
Status: offline 		Ron:

Is your F40 suffering from neglect yet?

_____________________________

irony [ay-ruh-nee, ay-er-nee] adj.:
Like goldy or bronzy, except made of iron

(in reply to disney1)
       Post #: 5856

RE: Falcon 40 (Exceed heli) Forum - 5/19/2008 8:39:07 AM   
Great_life


 

Posts: 77
Joined: 4/24/2008
From: Brea, CA, USA
Status: offline
quote:

ORIGINAL: broggyr

I've been seeing them, they look good, are fairly cheap and pretty sturdy. Where'd you get yours? Every place I looked was out of stock


They were sold out a few days ago, now they have 3 in stock.

http://www.xtremecx2.com/servlet/the-Helicopter-Upgrades-cln-Honey-Bee-Fixed-Pitch/Categories

(in reply to broggyr)
       Post #: 5857

RE: Falcon 40 (Exceed heli) Forum - 5/19/2008 8:46:03 AM   
Great_life


 

Posts: 77
Joined: 4/24/2008
From: Brea, CA, USA
Status: offline
quote:

ORIGINAL: Bones27

Here's one for you fellas, I'm flying the Falcon along minding my own buisness, in a good stable 4 feet off the ground hover and all of a sudden I lost power to the main, did a nice piro and then it fell out of the air. I have been flying this 4-in-1 for a year and have never had a problem. I didn't hit anyhting or stall the blades so I didn't expect the mosfet to be bad. I removed the 4-in-1 anyway because I couldn't get power to the main, opened it up expecting to see the tell-tell volcano in the mosfet; nope the mosfet was laying in the bottom of the case, no volcano in it, just looks like it fell off the board. Is it possible to melt the solder off the mosfet and not do any damage to it?



I have not have any problem with the mosfet on the Walkera 4#1 4in1. I own several DF4#1 which are the same as Falcon 40 but I believe the quality is different. I can sell a 4in1 to anybody who has this 4in1 burn out problem. Cost is $15 plus $5 shipping. PM me if you are interested.

(in reply to Bones27)
       Post #: 5858

RE: Falcon 40 (Exceed heli) Forum - 5/19/2008 11:28:44 AM   
disney1



Posts: 184
Joined: 11/21/2007
From: Orlando, FL, USA
Status: offline 		Morning Broggy:
Yes the F-40 is feeling somewhat neglected, but not because of the Belt, We have a new Grand Daughter, and our daughter lives with us, so the livingroom is not a good place to fly. And I do not have a garage. So I only fly outside. But I am not flying anything right now as I broke the Belt and am waiting on a Rotor Core. And it is very windy here lately.

Have A Great Day
R N Sr.

(in reply to broggyr)
       Post #: 5859

RE: Falcon 40 (Exceed heli) Forum - 5/19/2008 1:38:30 PM   
broggyr



Posts: 542
Joined: 1/22/2007
From: Naugatuck, CT, USA
Status: offline 		When do you think we can teach your granddaughter to fly? Good thing you still have the F40!

All the best to you and your family!

_____________________________

irony [ay-ruh-nee, ay-er-nee] adj.:
Like goldy or bronzy, except made of iron

(in reply to disney1)
       Post #: 5860

RE: Falcon 40 (Exceed heli) Forum - 5/19/2008 3:24:17 PM   
UTM


 

Posts: 372
Joined: 3/11/2008
From: Indianapolis, IN, USA
Status: offline
quote:

ORIGINAL: helojerry


quote:

ORIGINAL: UTM

Jerry,
i use the eflight CPP tail motor. it's more powerful than the stocker for sure. Still using the stock gear back there though.

They have these at my LHS for $11 which is OK. I looked at them and the output shaft/pinion combination is considerably shorter than the stock motor, ie the gear does not protrude as far from the body as the stock version. I wasn't sure if this would work for me or not. Also, the case size is exactly the same as the stock. Does this sound like the same thing you're using?

One other issue with the tail boom mod: I have the stock frame and landing gear and I can't remove the stock tail boom from the frame. She's glued in there I think. I may have to cut the boom off and then drill it out in order to replace it maybe. I can remove the tail motor holder OK by removing the retaining screw. I can pull the wiring harness out either. Once again, I think maybe there is some glue holding that in there as well. Worse case, I guess I could cut the wires about an inch from the connector and splice on some new ones. No big deal there I guess.

Jerry
quote:

Jerry, the Century tail motors have a shorter shaft also. What I did was to turn the large gear around and reinstall it. If you look at the large gear on the tail you will notice that it has a shoulder on each side in the center. The shoulder is longer on one side than the other so depending on which way you install it you can make it closer to the boom or further away from the boom accommodating different shaft lengths on the motor.


Jerry - Chuck is exactly right. There are two different size sholders on the gear. Just turn it around for shorter shaft. That's how I run mine. As far as the tail goes you may have glue particularly if you haven't been the only owner of the falcon. If it came from the factory there will be no glue in there. You may have to get on it with a pair of pliers. I did the first time I had to replace mine. It did eventually come out with some force. I don't think you'll have any luck in drillilng it. I have tried several times drilling that nd other parts and it's just really tough to get it in and straight. I'm not saying it can't be done just more pain than it's worth considering a new fram cost $7.50 and Michael has them buy one get one fairly often. Silly I know but be sure you've pulled the screw holding the tail in place. The wires in there may not have glue on them. I find mine are all but impossible to get out until I pull the tail off then they will come right out. They just get hung up right at the tail box and then again where they enter the frame just in back of the tail. If you can get the tail off you will be able to get them out. Then again if you are planning on putting a longer boom on you'll have to make a new tail set anyway. Just cut em about an inch behind the connector and solder new wires on (No sense in wasting a perfectly good connector). Make sure that the splice and heat shrink stop short of where they go into the tail. It won't fit in there. Trust me I made that mistake when I replaced my tail the first time and broke my tail wire, had to cut the wires again and resplice them closer up to the connector.


_____________________________

Rules are made for people who aren''''t willing to make up their own....Chuck Yeager

(in reply to helojerry)
       Post #: 5861