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11-21-2006 06:44 PM  11 years agoPost 1
head04

rrApprentice

Fort Lauderdale, FL

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I’m thinking about purchasing a MX400 Pro in the next week or two.
What do you guy think about the following parts for the setup?

MX400 Pro with the stock Motor and ESC

3 Eflite S75 or Hitec HS-55 Servos (I currently have the extra eflite servos)

1 Hitec HS 56 for the tail

Futaba 240 Gyro (currently have)

Hitec Electron 6 RX (currently have)

TP 2100 LiPo battery (currently have)

JR 8103 Heli Radio (currently have)

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11-21-2006 07:18 PM  11 years agoPost 2
BikeNBoatN

rrVeteran

Santa Ana, CA USA

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If you can afford it, I'd recommend the HS65MG's. The 55's will work for a while, but gears strip fairly easy. The S75's come stock on a BladeCP and work well there, but will get sloppy quickly on a larger heli like an MX. Since the MX400 uses mechanical pitch mixing, you can get away with the weaker servos on cyclic, but for collective they'll strip on your first crash. The stronger 65's made my tail much more positive compared to the Futaba 3107's I originally started with. I use 65MG's for collective and tail on my MX400 with GY240 and have no complaints. I'm still using the 3107's for cyclic.

With the Electron6, be prepared to chase down glitches due to the aluminum frame. I had them with my E6. After trying all the tricks, Spektrumizing my Optic6 with 2.4Ghz was the only sure-fire way to completely eliminate them.

Be sure to get the aluminum main rotor hub with your MX-Pro. That is almost a required metal upgrade that is not included with any MX unless you get the full-bling MX450.

Brent
Slow and Smooth 2-D Scale Flyer
AMA #35431

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11-21-2006 07:49 PM  11 years agoPost 3
stickyfox

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Rochester, NY - US

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I second BB: don't use those servos. I'm using them now and I'm pretty sure they're the cause of some recent crashes. The MX400 uses very small amounts of servo travel. Even brand new those S75's/HS55's are really loose. Go with 3107s or HS65's.

I'm using Experts on mine right now, but the leads are too short to reach the receiver unless you put it right next to the motor, and even then they're stretched taut.

-fox

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11-22-2006 04:25 PM  11 years agoPost 4
murp

rrApprentice

Nova Scotia, Canada

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I use the E6 without problems after careful placement and attention to wiring.

I use the HS55 up front and they work fine - I do plan to upgrade in the future to 65's all around. I use a 56 on the tail.

I also use a MR 6V/2A BEC to power the receiver and servos - you'll get better response from your servos and don't have to worry about whether your ESC can power them.

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11-22-2006 07:14 PM  11 years agoPost 5
raknin

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Israel

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BikeNBoatN

Just an update those days the mx400 pro come with the aluminum head I confirm it with towerhobbies tech support. You can also find it in tower site in the decription of the MX400 pro.

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11-22-2006 08:15 PM  11 years agoPost 6
BikeNBoatN

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Santa Ana, CA USA

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Hmmm, I wonder if that's an error on Tower's website. In Tower's description, they do list the aluminum rotor hub in their "features" section, but it is not mentioned in the "comments" section as an upgrade over the standard MX400.

According to the HeliMax website, there is no aluminum rotor hub listed here. I haven't looked at a Pro recently, but the last time I checked one at our LHS, it did not include an aluminum rotor hub.

Wonder which is correct?

Brent
Slow and Smooth 2-D Scale Flyer
AMA #35431

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11-22-2006 08:25 PM  11 years agoPost 7
BikeNBoatN

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Santa Ana, CA USA

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This may clear up some of the confusion. Here's a comparison from HeliMax's website of the 3 MX heli's. I notice the Pro says it has a plastic rotor head, with an aluminum center hub. Their definition of "aluminum center hub" is the round decorative button screwed onto the top of the head. So in a sense, it's true that the Pro has aluminum on the rotor head. It's just not this piece, the piece that matters.

Brent
Slow and Smooth 2-D Scale Flyer
AMA #35431

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11-22-2006 08:59 PM  11 years agoPost 8
stickyfox

rrKey Veteran

Rochester, NY - US

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I recently got my MX400 Pro EP from Tower. It comes with the all-aluminum see-saw, hub, and decorative round thing. The paddle control frame and washout links are plastic though.

-fox

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11-23-2006 12:08 PM  11 years agoPost 9
raknin

rrApprentice

Israel

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BikeNBoatN, towerhobbies representetive said that this was added only recently.
stickyfox: Can you send a picture of the head to clarify things.

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11-23-2006 06:17 PM  11 years agoPost 10
stickyfox

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Rochester, NY - US

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Unfortunately I can't. I'm away from home for a while and only brought the BCP with me.

I wasn't able to find a photo on google either. The picture on tower's page does not match what I got from them; mine has more aluminum.

-fox

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11-24-2006 07:44 AM  11 years agoPost 11
raknin

rrApprentice

Israel

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stickyfox
i believe what you got is something similar to 450 head. Can you indicate if we take the 450 as refrence what parts were supply with your heli and what not, since the 450 has all the upgrades.

Also are those are the HUB and seesaw that you got:

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12-24-2006 06:49 PM  11 years agoPost 12
head04

rrApprentice

Fort Lauderdale, FL

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Final setup
I went with 3 - 3107's and the HS-65 for the tail. I'm using my radio equipment and batteries that I mentioned before.

I completed the setup last night and did some hover and figure 8's in the front yard this morning.

All I can say is, this helicopter will probably see more stick time then my Trex 450XL. I love the smoother and slower feel of the MX400 Pro.

Once I become more proficient with throttle and pitch curves I can see this heli flying inverted and doing rolls and loops.

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