Bolt-On Thrusted Tail Mod - ROCK SOLID!!!

[readyheli]

Guys:

picking up from Finless' concept of aftermarket tails, we finally have a winner...its so simple not sure why we tried to over-engineer it.

We sought a thrusted tail that would give the stock heli more authority...we have been testing this for a few days (stock tail w/ Boca bearing Thrust Bearings seized)....the answer, the H60109 Thrusted tail upgrade from Align.

http://www.readyheli.com/ProductDetails.asp?ProductCode=H60109

Direct bolt-on, uses stock GAUI tail blades...we could not shake the tail loose through knife-edges, snakes, and 4-point tic-tocs tonight...All you need to bulletproof your Hurricane is Revco Perfect Circle gears and this tail bolt-on.

The reason why we did not like the TT tail is that it was more expensive and did not offer thrusted bearings (only dual-radial). This is a complete hub, bearing and grip assembly in one clip, right out of the package...and its rock-solid.

I did have a conference call earlier today (tommorrow there) with GAUI folks...they have assured me that they are coming out with a cnc tail and it is scheduled in CNC right now, which will address the tail issue. They assured me that stock motor headspeeds maintain the tail just fine, however the headspeed we are running is pushing it beyond its capabilities, much like Align did with their TREX 600.

Thats it for now, time to go outside and watch the fireworks...

video of the tail is forthcoming.

[tungym]

DO you recommend to change the slider fork to the Align as well? As the slider has different geometry from the Gaui. At neutral position, the slider fork is not level but extended. I got both but Ihave not try to put it on. Any furthere setting tips as well?

[readyheli]

Use the GAUI supplied tail pitch lever. obviously check for binding in the corners, but we did not have any.

[Finless]

Yea I didnt try the ALign myself as looking at it on the bench it does have a different geometry. The Raptor was an exact match so I just went with that first. As long as the Align works and gives the needed pitch in both directions GREAT... there's the solution!!

Only other worry is sometimes the Align can be a hit or miss. Some people have had problems with the bearings binding in the grips causing wag. If you use this and have the problem see the thread on this in the Trex600 forum and how to fix it.

Bob

[readyheli]

i agree 100% Bob. Chris and I took it to bare pieces and checked it and re-loctited all of it, and added some thin CA to the grip screws (carefully)

so far so good.

[dutch_anykey]

John,

Still flying the Align tail hub assembly? How is it holding up? Just upgraded to the GAUI 1100kv motor. The stock tail doesnt seem to be verry happy with it. Alltough i'm not as high as your HS i think. I'm at 2100 - 2200 HS and occasionally i get a tail kick.

b.t.w. How warm does your gaui 1100 gets? Mine is rather hot. Driving it with a cc phx 80 ESC and 7s A123.

Thanks,
Maurice

[readyheli]

align tail assembly is the "goods" on my ship...no issues....motor temps are warm, barely hot on (2) fp evo25 2500's....i suspect you might be pulling more amps with your setup?

[dutch_anykey]

Yeah,
Still fidling around with different settings in the ESC. I hope next saturday someone can lent me a datalogger. Would like to see the differences.
Also i'm goin to switch to other cf blades.
Currently i have MAH 515 blades. They are 117 gramms each. I see that the new 500 mm blades for the GAUI are 77 grams. Dont know if that would help.

thanks,
Maurice

[readyheli]

Yup, they are from a new company whom we are the authorized distributor for, called RCP. I wont say a cheezy sales pitch about them, however they are torsionally superior to their competition due to the herringbone carbon fiber weave and the way the factory lays the molds up...We are bringing to the market as early as this week all popular sizes, from 288,325,425,500,600,690,710 plus tails 62,92,95 and paddles 50,80 with future sizes available...and we will also looking to sponsor some pilots as well...pricing is very competitive, and performance, well, just look at the videos we are releasing. Mah's while nice blades do not have the cyclic pop in my opinion due to their tapered design...but are great fff blades. Moving to blades which are 80 grams lighter will surely waken up your cyclic...indeed.

[dutch_anykey]

Hi,

I installed the longer Raptor flybar, so cyclic is o.k. Our local raptor 620 guys can't keep up with that. Same for the fast climb outs. It's just the motor heat that is worrying me. I want to try the lighter RCP blades and see if makes any difference in that direction as well. But it could be the A123 as well. Lipo's have a more constant voltage under load. Maybe because of the voltage drop from A123 under load condition the current goes up.

Too bad there isnt a shop like readyheli in europe. Customs is a real pain in the ... lately regarding packages coming from the US.

Thanks,
Maurice

[Happy|Harry]

Yea I didnt try the ALign myself as looking at it on the bench it does have a different geometry. The Raptor was an exact match so I just went with that first. As long as the Align works and gives the needed pitch in both directions GREAT... there's the solution!!

Only other worry is sometimes the Align can be a hit or miss. Some people have had problems with the bearings binding in the grips causing wag. If you use this and have the problem see the thread on this in the Trex600 forum and how to fix it.

Bob

bob do you have a link to that Trex600 tail problem thread, i've searched but i can't find it :oops:

phil

[tungym]

Actually, you can see a conical deformity of the stock tail grip by powering up the rotor at 0 pitch and stand at the back of the tail. give right rudder and the grips will deform and point leftward. vice versa.. This deformity will defintely cause problem in fast backwards and some 3D manoveur..

Certainly it is ok for gentle flying in 99.9% condition.

the trex thrusted tail is beafy and wider, must use with carbon tail blades to have perfect control. I just changed the Align and will see if it rocks.

[Finless]

bob do you have a link to that Trex600 tail problem thread, i've searched but i can't find it


Here it is:
http://www.helifreak.com/viewtopic.php?t=41190

Bob

[Happy|Harry]

thanks bob, but i was meaning the thread about the Trex600 thrusted tail problem and how to fix it :oops:

phil

[Finless]

Hmmm I dont know.... Some of the thrust bearings that went out with the early tails had a wrong diameter of one side of the thrust bearing. I looked around but cant find that thread myself. It's probably 20 pages back on the 600 forum.

Bob.

[tungym]

oJust tried the align thrusted tail with carbon blade. After all, the rotor radius will be 2cm longer than stock . You can hear the tail rotor sounds different and all tail movement is solid. I also put on 550mm blade without problem.

It end up in a crash by which all tail control lost and the tail spin CCW like crazy.
All electronics , servos and gyro are fine and no radio jam. I concluded the crash resulted from the tail slider lever was caught by the tail hub on extreme right yaw movement.

So bad that I did not have a detail bench checking before let it go.
:arggg:

[Happy|Harry]

sorry to hear about your crash tungym :(

there's nothing worse than a crash after you fit a new component, especially one that would have been avoided by doing a proper bench check :(

phil

[arclite5]

Yeah I hate those sorts of crashes.. I've been a victim of them many times myself ;] Always too eager to get out and try something new.

Learning patience though..

-Kyle

[tungym]

Do you guys have similar problem of the slider lever hitting the tail gear case screw stud on right rudder stick movement (servo pushing back). I end up to dremel a tiny piece of plastic there. I do not have this problem with my old gase case.

[mbigby2]

tungym,

Can you post a photo of the dremel surgery?

Thanks...

[mbigby2]

Has anyone tried the Quick UK thrusted tail rotor:

http://www.ronlund.com/Merchant2/merchant.mv?Screen=PROD&Store_Code=heli&Product_Code=QUKRT-11B

I read about it in the T-Rex 600 forum (I think), and bought one. It bolts right on and it seems to be a closer fit to the original tail (the tail rotor diameter doesn't change like w/ the Align.) Here's a photo of my rotor...