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« Reply #50 on: April 11, 2010, 12:41:49 PM »
lavneetgyani
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Wonder why you left the glow igniter dangling from the heli Head Scratching

engine died for the Nth time with first starts...so my brain-wave to keep it on for just 4-5 mins in a ground effect hover - just to see if the darn thing even flew!!!
« Last Edit: April 11, 2010, 01:13:18 PM by anwar » Logged
 

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« Reply #51 on: April 11, 2010, 01:16:14 PM »
anwar
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The low needle being rich is common, causing the engine to quit frequently during break in.  Another issue is the glow plug itself, but being brand new, that is less suspect here. 

From the later pictures, it looks like this resolved itself after the engine found its groove ! 
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« Reply #52 on: April 11, 2010, 03:05:50 PM »
gauravag
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Great ! Congratulations.
What fuel did you use for the breakin ? Even mine died 10 times on my Raptor's first flight. Idle was OK, but as the throttle was increased, at mid point the engine got too rich and died. With airplanes we usually leave the glow plug connected during the first minute of breakin. Didnt really think of doing that on a heli.

Great show. Look forward to further pictures/videos.
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« Reply #53 on: April 11, 2010, 05:21:27 PM »
lavneetgyani
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Used the following and plan to use it throughout the helis flying days!

10 synthetic
10 castor
10 Nitro
70 Meth
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« Reply #54 on: April 14, 2010, 04:18:23 PM »
lavneetgyani
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Did some slow and low fwd flights on the 2nd flight...lots of bobbing vibration though... Head Scratching

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« Reply #55 on: April 14, 2010, 04:34:01 PM »
anwar
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Can't see the "bobbing vibration" Head Scratching  Can you describe what you are seeing a bit more ? 

The head-speed looked good for what you are doing, and the tail was holding well too. 
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« Reply #56 on: April 14, 2010, 04:40:02 PM »
lavneetgyani
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i am glad you asked the specifics  Grin

It is not true bobbing but just that the tail is vibrating very fast in an up-down motion. The movement is less tan an inch maybe but it is vibrating a lot!!
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« Reply #57 on: April 14, 2010, 04:55:23 PM »
anwar
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I can barely see it in the video, and a bit of vibration is normal. In any case, you should get some help by bumping up your throttle curve for those stick positions by a little (about 3 to 5 points is a good guess).  A good amount of up-down wobble of the tail is typically an indication of not enough head-speed (which is barely visible in your case, but no harm in being a bit higher).
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« Reply #58 on: April 15, 2010, 07:21:35 AM »
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Hey lavneet good going...The best part is that you assembled it yourself so, you know ur heli the best .
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« Reply #59 on: April 25, 2010, 10:27:59 AM »
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Hey Anwar,
I got your recommended Align B6T 2 in 1 regulator with the align lipo. I was installing it and just realized that its regulated output is 5.8v while the Fut S9254 is rated for 4.8v!!!! No am I going to need the Align inline 5.1v regulator between the Gyro and the Servo to prevent it from getting fried?? This is such a pain if i cant use it in this setup and having to add so many weak links to the setup!! Or, will the 9254 stand up to the regulated 5.8v output just fine?

Cheers
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« Reply #60 on: April 25, 2010, 10:50:33 AM »
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Futaba 9254 cannot handle 5.8V . Yo uwill need to use a regulator.
That is the prime reason, I switched to the Turnigy servo. Works great with unregulated 6.6V A123.
In your case, just use the inline regulator. Should be good enough. Its just a diode !
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« Reply #61 on: April 25, 2010, 11:11:24 AM »
anwar
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Yes, you have to bring it down to 5.1v using the regulator (which is just diodes).  It is a shame that I overlooked your rudder servo, and did not mention this initially itself (although it was not clear from the NiMH battery specs whether it was 4.8v or 6v).  But you will love the convenience of it later on, and you can continue the old setup until then; so there is nothing really to lose.

A diode is the last thing you expect to fail, so the whole "weak links" part is not a concern at all.
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« Reply #62 on: April 25, 2010, 03:59:21 PM »
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darn!!! the wait is so irritating, I changed all the elctrics for the 2 in 1 and am no way going to cange it back to the old setup, will just wait for the inline regulator.
In the meantime just read this whole thread and see the counter arguements....these are by experienced heli pilots BTW!!

http://www.rcheliaddict.co.uk/main-discussions/31440-align-2-in1-reg-futaba-s9254-help-please.html
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« Reply #63 on: April 25, 2010, 04:17:04 PM »
anwar
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Not worth the risk on an expensive servo, and possibly the expensive heli. 

Regardless of the discussion, Futaba clearly does not support 6V.

http://www.gpdealera.com/cgi-bin/wgainf100p.pgm?I=FUTM0224
http://www.futaba-rc.com/servos/digitalservos.html
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« Reply #64 on: April 25, 2010, 06:01:20 PM »
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darn!!! the wait is so irritating, I changed all the elctrics for the 2 in 1 and am no way going to cange it back to the old setup, will just wait for the inline regulator.

If you have a servo extension lying around, it is a trivial job with a soldering iron to make one. Instead of waiting days, you just need one trip to local electronics shop to get a diode.
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« Reply #65 on: April 25, 2010, 06:20:19 PM »
anwar
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There are choices in diodes, in terms of power.  I have not opened up the regulator yet (and I am not using it any more, since all the newer servos support 6V), so do not know which one specifically they are using. 

Other than that, just some confidence in basic soldering skills is the other requirement; and knowing the diodes are directional. 

If the above are clear, then absolutely no need to wait.  All are basics, but important.
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« Reply #66 on: May 16, 2010, 11:02:17 PM »
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About 2 doz flights on it....getting to do Fig-8's and some basic stall turns now...Am a bit clumsy though!!!

!
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« Reply #67 on: May 16, 2010, 11:50:10 PM »
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About 2 doz flights on it....getting to do Fig-8's and some basic stall turns now...Am a bit clumsy though!!!


lavneet, you seem to be doing great !   well done.
where are the clumsy bits Huh?

chand
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« Reply #68 on: May 16, 2010, 11:51:41 PM »
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cant wait to progress on my build front.....havent had the time recently. Sad
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« Reply #69 on: May 17, 2010, 01:00:28 AM »
anwar
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Nice progress Thumbs Up  

Love the field !
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« Reply #70 on: May 17, 2010, 06:52:18 AM »
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Cool! you fly very confidently dude. Yesterday I saw Adarsh flying his 600 FBL. and these things are really monsters and have to be handled really carefully! So much of power in them!  Shocked
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« Reply #71 on: May 17, 2010, 09:49:57 AM »
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lavneet, you seem to be doing great !   well done.
where are the clumsy bits Huh?

I feel a little uncomfortable towards the ends of the 8's when the heli is turning....have this habit of pulling elevator to slow things down fearing it will get too hot on me....makes it look a little less fluid....working on it though!!
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« Reply #72 on: May 17, 2010, 12:17:26 PM »
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Nice progress Thumbs Up 

Love the field !

Thanks buddy, coming from you it gives me a lot of confidence. Yes it is the ultimate RC field possible....a friends polo farm where he breeds horses....1500 feet X 700 feet of perfectly manicured lawns....unfortunately only a max of 2 flyers allowed at a time since it is disturbing to the horses!!
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« Reply #73 on: May 18, 2010, 06:09:37 PM »
lavneetgyani
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Same Trex video of mine, different soundtrack...remember the Irene Cara song from the 80's - 'What a feeling....take your passion and make it happen'...How apt!!

!
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« Reply #74 on: June 30, 2010, 09:58:32 PM »
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could not resist the temptation to change the canopy to the yummy fusuno air brushed and the landing gear to black Smiley

DSC_2759lolo.jpg
Re: T-Rex 600 Nitro pro, my first Nitro heli build...
* DSC_2759lolo.jpg (52.59 KB, 800x536 - viewed 764 times.)
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