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T-REX 450 › The 450m motor on 4s!!! with EagleTree data
03-13-2010 09:45 AM  8 years agoPost 1
AWittleWabbit

rrElite Veteran

O.C., CA

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My trusty Neu 1107 2y from my 4s 450SE is due for a bearing so I thought of giving the 450m motor a try. I just wish Align would make a 10 and 11 tooth pinion for the 450m. I had to chuck a old brass Align pinion in a lathe to get it to fit the 3.5 mm shaft. You might ask why I didn't try another motor. I like the idea of a bigger bearing supporting the motor shaft. Time will tell if it lasts. I'm not complaining about the Neu motor though. It lasted 3yrs with no oiling till a few months ago.

Here's the Eagle Tree plot from today.

At 1.7m is an upright climb out.
The 787 watt peak is during some sloppy tick tocking.

I cropped the graph so it starts after soft start on the ground 0 pitch at 3360 rpm. It was kinda scary holding my planker tach over the rotor. I need to get the rpm expander for the logger.

Here's some particulars if anyone gives a flying .

Pitch +-10 deg
Rpm 3360ish no bogging noted during flight. Thought rotor was going to depart airframe. Had to drop tt curve to 70% not ideal but I'll live.
Lipo 18 dollar 4s 2200 blue Zippy
Pinion 11t drilled and reamed to 3.5mm ish

I sure wish Align or some entrepreneurial person would make a 11t 3.5mm i.d. pinion.... I'd like a 10t but I don't think there would be enough meat on there to hold. How about it Align? Sell a pinion and an external bec(since the 35x esc bec can't handle 4s) in them little plastic cases. Call it the 4s super duper set..........

Heli-itis sufferer.

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04-09-2010 03:28 PM  8 years agoPost 2
darkfa8

rrElite Veteran

Brick, NJ - USA

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what is your flight time?

- Dan Goldstein
Team Revolectrix

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04-09-2010 09:23 PM  8 years agoPost 3
AWittleWabbit

rrElite Veteran

O.C., CA

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Hi Dan, my timer is set to 7 mins. I'm using the 450m while my Neu gets a new pinion. I had my timer set to 8mins with the Neu. The low duration for the 450m is because I can't fit a pinion smaller than 11t.

Heli-itis sufferer.

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