rcflyerdave

Just bought a silver Trex se,what a beauty.I have a bunch of Hitec Hs-55s.Are these stout enough for the cylics?Plan to get a Fut 9650 for the tail.Also ,most of the metal parts are assembled.Do it need to be taken apart and loctited?Any hints prior to assembling would be appreciated.
Dave

BarracudaHockey

My Feedback: (11)

I bought 56's but the boys at Heliproz told me the 55's will work fine but will develop slop after a while.

WhtBronco

That's the consensus. HS55's will work, but 56's are better. I think I may even go with JR DS281 digitals though.

I learned on my Raptor 50 that higher end digital servos make a huge difference. As it turns out several of the hot shot pilots are using the DS281's as well, such as Ray and Kyle Stacy.

DarkWombat

Just bear in mind that the 281's are slow, slow servos, we're talking .22sec/60deg slow. That's twice as slow as a 56.

Give the HDS-877's a look. I use one on my tail and it's just rock solid, fast and inexpensive (my LHS sells them for $25!). Some people say they don't hold up after a few flights but mine's still fine after 3 crashes. I haven't done wild 3d though.

maxim_jd

I'd have a look at the new Futaba 3110's. Better speed/torque than the Hitec HS56 and cheaper too. Plus - they're Futaba...

WhtBronco

I agree the speed of the DS281 is a bit slow, they are however strong and precise.

I am also thinking the new HiTec HS65's look good. Speed is .12(same as HS56) and 22.21oz of torque compared to 13.88 for HS56.

leejax02

My Feedback: (1)

Use the hs-56's and the 9650 and works great...may not be the cheapest, but arguably the best servos for a Rex. You will have to modify the servos to fit, but it is as easy as a few minutes per servo.

Always check each and every screw for loctite. You will want to take the swash out and see it you can push the inner hub with the 4 ball links apart from the bearing. Be careful as to not damage bearing. Several SE owners have reported the swash coming apart in flight...and the obvious crash. Use green loctite to reassemble and be carefull not to get it in the bearing.
Make sure that in the tail grips that there are black hex-screws that connect to the hub, and not a silver Phillips-type screw that has failed at higher headspeeds. This is not the screw that attaches the blades to the grips.

BarracudaHockey

My Feedback: (11)

I watched an SE launch a tail blade last week out at Jax R/C, it went alot farther than any of us looking for the grip would have thought.

ptgarcia

My Feedback: (36)

I just ordered an HDS-877 for the tail of my T-Rex and 3 Futaba S3103's for the cyclic. If the HDS-877 gives me trouble I'll pick up a Futaba S9650. Hopefully everything arrives soon, I can't wait to get this thing in the air!

rcflyerdave

What mods are required on thHS-56's.Also the tail screws breaking are due to the high head speeds some are running which translates to high tail rotor speeds,per DeeTee helis.They threw in a free set of blue main gears and a new metal tail pulley of slower speed(RATIO) with my new silver Trex SE..ALL FREEThis way you can have higher main rotor speed without insane tail speed .DeeTee was great to deal with. Dave

BarracudaHockey

My Feedback: (11)

The 56's are set up like a standard servo with two holes on each side and a bunch of little plastic mounting tabs all over them so you could mount them in just about any orientation. You need to remove the excess tabs and drill a hole between the servo screw holes so you can attach them to the rex frame with one screw. As lee said, it takes just a few minutes per servo.