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EF 540t Profile

Old 07-30-2004, 02:13 PM
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Default EF 540t Profile

I just got a extreme flight profile the 45inch and I see they only have cg 1/4 inch back to start I am a experienced 3d flier and am looking for the cg points people are having good 3d results with. I have the micro servo and hitec standard high tork all around I am about to mount the saito .82 and plan to run a 14x4w prop. any help would be appreciated [:-]
Old 07-30-2004, 02:29 PM
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Excellent flying profile! I talked with Chris personally when I bought mine. He said that he was flying his with the CG at about 1 in. behind the spar. I've got mine at about the same. I am running high torque (over stds) digital servos in the tail and MPI 870's on the ailerons. I have a Webra 50 with a X-Long header and std. tuned pipe by Mac Products on mine mounted at the end of the engine mounting rails. I still had to add a brass spinner nut to get the CG close, though I installed a different tail wheel assy over what was supplied with the kit (and I am sorry that I did). Mine is around 4.5 lbs with this set-up (even with the brass spinner nut). I love it!
Kevin
BTW - I have to change my Avitar after this ARF!
Old 07-30-2004, 03:31 PM
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Default RE: EF 540t Profile

Thanks man I am realy going crazy I need to fly this thing now. Sounds like I am going to love it
Old 08-01-2004, 08:09 PM
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Default RE: EF 540t Profile

I have flown the piZZ out of one of these and you will love it. I have a YS 63 on mine and I found the 14 x 4 did not allow the four stroke's power to be fully utilized. You will be too quick into the power curve. I use a MAS 13 x 6 scimitar. You have a lot of power with that four stroke try increasing your pitch and take advantage of it. You will hover at a lower RPM and you will not have to spool up as far in order to get altitude changes.
Old 08-02-2004, 10:41 AM
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Default RE: EF 540t Profile

Thanks ya I have a 14x4w APC lying around for the 540t but I'm going to give the 13x6 a try I'm not using the ys but the saito .82a so I'm interested to see.
Old 08-02-2004, 12:56 PM
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Default RE: EF 540t Profile

kevin4hsrcm

BTW - I have to change my Avitar after this ARF!
LMAO I was wondering about that!!!!
Old 08-02-2004, 05:21 PM
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Default RE: EF 540t Profile

Got a Saito 82 on mine...13x6 wood Zinger or reg APC both do very well. With the Saito 82 I had a lot of vibration (some other guys did too). Made the low end of the throttle curve erratic and foamed the fuel in the tank. I beefed up the back side of the phenolic engine mounting rails with some 1/4 inch ply and it helped a ton. I have my CG at 1 inch behind the spar and it weights 4 1/2 lbs exactly. Before the modification, the vibration was so bad it toasted the gears on a Hitec HS 81 in 1 flight. The Hitec 225 was not precise enough either with the vibration so I went to a JR mini digital and with the beefed up mount I now have the low end of the throttle curve set up great.

This plane is a lot of fun, light for 3D and tons up torque for pulling out of hovers....enjoy it!
Old 08-02-2004, 05:30 PM
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Default RE: EF 540t Profile

can you send me photos of the engine modifications for the mounts that sounds like somthing I need to do now you got me scared lol
Old 08-02-2004, 10:48 PM
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Default RE: EF 540t Profile

Here a few pictures of my little baby, I love this plane its so fun! I have a YS 63 on it, it hovers, harriers, the take off is so cool about 3 foot run-out the straight up for three hundred feet!!!Inverted flat spins with no or little altitude loss, blenders like a animal, the plane is so well built I am not afraid to do any maneuver it flips and tumbles unbelievably
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Old 08-02-2004, 11:14 PM
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cool pics I should start building tommaro but I am still worried about all the vibration I'm hearing about with the saito .82. I have to use that motor and i am woundering what I could do to help with that. Well I thing I will put a section of heavey rubber and 1/4 ply to renforce the mount and put foam under the gas tank. I also might mount the tank with rubber bands that seams to help. Can anyone thing of anything else.
Old 08-03-2004, 10:35 AM
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I have the 82 on mine,sure it shakes a little at idle but has never missed a beat in the air.Great transition and tons of power with the APC 14x4W on 20/20 fuel.
Old 08-03-2004, 11:24 AM
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One thing that I did was I cut and installed short sections of large fuel tubing on the wire ties that hold the fuel tank in place in addition to the foam between the tank and fuse. I just slide the fuel tubing over the wire tie before I install it. The fuel tubing adds allot of extra dampening effect and helps prevent the fuel tank / wire ties from sliding.
Works GREAT!
Kevin
Old 08-03-2004, 09:36 PM
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Pic of the ply reinforcements behind the phenolic mounts...
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Old 08-06-2004, 12:57 AM
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I have almost completed the build I will posting pic of my modification IE engine mount/gas tank mount. Thanks for all the great advice guys. One thing I did notice is the 540t is built well I could only find some small issues 1. the stock tank is a wast of time or lack of, 2. I could not find the ca hinge pre cut slots as stated in the instructions(no big deal made my own. 3. Landing gear could be better and would be a good up grade to go with crazy legs, for up and coming kits. With that said I love the arf so far I am going with cg 1!QUOT! behinde wing spar, I hope I get good 3d results I need to be ready to show off the 14th 15th at the Gault Airport Tires & Fliers show I was invited to come fly and show off in between acts for the 4,000 people going. I picked a stupid time to change planes but I need something small and my cg extreme 330 is out of commission and I hear the 540t is a better flying aircraft so I will have to hope that my experience pulls me threw if I work it right I will have a week of practice in. I am having a friend tape the show I will try to post it. Once again thanks Guys.
Old 08-06-2004, 05:59 PM
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Default RE: EF 540t Profile

Go ahead and order your crazy legs now. You will need them. I am sure sooner than you think. If you order them now you will avoid down time.

Agree with the fuel tank. Mine is still in the plastic. I used an 8 oz Hays tank.

I agree it is better than the CG. I have always been a fan of CG, but the two profiles they have are heavy and typical ARF's. The EF edge stands above all the other ARf's. You will like it. The only better stuff out there you have to build yourself.
Old 08-06-2004, 11:41 PM
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Default RE: EF 540t Profile

I WANT TO FLY NOW MUST WAIT TO CG AND CHARGE DANG IT!
Old 08-10-2004, 12:04 AM
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Default RE: EF 540t Profile

I'm wanting one of these airplanes but have a few decisions/questions.

first, i can't decide between a saito 72 and a os 50 sx, what do ya'll think?

second, should i get a narrow or wide blade prop?

third, i'm getting a wild hare edge 540T and i want to use this airplane to learn 3D, would i be able to transition what i learn from the EF 540T to the wild hare? granted i'm not wanting to hover it next to the deck on the first flight or probably any lower than 50-100ft AGL ever.

any replies will be greatly appreciated, thanks.
Old 08-10-2004, 12:15 AM
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Default RE: EF 540t Profile

well

I flew it today it was way to windy to get radical but I was way impressed harrier hell ya loved it any way I stripped the hitec 225. in the nose I can't think of a better mini servo any suggestions.
Old 08-10-2004, 04:14 PM
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Default RE: EF 540t Profile

I don't think you need a better servo. You may have just got a bad one. Was it new? I have used a HS 81 in the throttle for a long time. No need for anything more. The 225 is already overkill. Just replace it and go fly!!!!!!!!
Old 08-10-2004, 07:34 PM
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Default RE: EF 540t Profile

ya thats what I did I hope hitec gives me a new one 29.99 dollars out the window
Old 08-11-2004, 07:05 AM
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Default RE: EF 540t Profile

I've had allot of problems with the HS 225's. I've quit using them - even for a throttle servo ( BTW - that is all that I will use them for on a Fun-Fly). I've got about 8 - 10 that I need to send back to HiTec. Both my son and I use to use them. I have moved to a comparible Futaba servo (can't remember the No.) where a mini servo is important, otherwise, I've switched to a std servo, or whatever is laying around in the shop
I can't understand how you guys are getting away with the HS 80 series for a throttle servo, obviously, I am a heck of allot tougher on my throttle servo than you! <LOL>
Kevin
Old 08-11-2004, 11:01 AM
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Ben Beyer, you need to start with the EF edge and learn all your 3D maneuvers. It is a great flying plane, mine has a YS63 and no modifications, almost everything is stock and all standard servos except throttle I use a HS85 and carbon fiber landing gear. This plane will help you get your thumbs going in the right directions and then you can transfer that ability to your larger planes of choice. Now, your larger planes will not react the same but you have that foundation to help you. The key is, practice and watch those that know. Then practice and repair, then practice, do you see where I am going with this? Oh yea and you will need to practice. Jeff Williams
Old 08-11-2004, 12:09 PM
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Default RE: EF 540t Profile

I also had trouble with the 225 for throttle...my idle kept changing. This is not Hitec bashing, but those 225's are not up to the tasks that their specs claim. I went to a JR mini digital that I had on hand (kinda expensive but it was sitting around). It takes a fairly decent mini servo to be accurate in this plane I think due to the vibration. Its worth it though because for 3D, you want accurate throttle control. Once you get this plane dialed in, its a great 3D machine.
Old 08-11-2004, 01:52 PM
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Default RE: EF 540t Profile

Aviti, you are correct with that info on the 225's. I have had problems with them also, and the 81's too. I like Hitec overall, but the 225 and 81 are off my list. Jeff W.
Old 08-12-2004, 06:01 PM
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Default RE: EF 540t Profile

True Jeff - In fact I had an HS 81 on the EF Edge to start...after 2 flights the gears were toast. I don't really blaim the 81 as it just wasnt intended for that much vibration.

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