HDX 300

[Dan MacKay]

Hi gang,

What is a good Brushless motor/ESC combination for a '300? I plan on using the Thunder Power 1320 Lipo's that I am currently using for my Blades for power. I currently use a Align 370 and with an E-Flight 20AMP ESC for an upgraded Blade that I have. Would this combo be suitable or should I go to something different?

Dan

[JesusFreak]

Dan, the HDX300 is nice and light. The Eflight 20 is quite a bit heavier then a Castle 25, so if you want to try a different controller, I would go that route.

I know they recommend the larger battery for the brushless setup, but again, I'm hoping by keeping the weight down, I can make it go a reasonable time with the standard 800 or 900mah lipos. I'll only go up to the 1320 if absolutely needed.

Cheers!
Lee

[Dan MacKay]

Hi Lee,

What about the motor. An HDX300 or is there a better one available. I have easy local access (here in Canada) to the E-Flight product line if there is one that might do. In all the reading I have done The CC 25 seems to keep popping to the top of the list, particularly with the programming cable.

Thanks,

Dan

[JesusFreak]

Dan:

E-Flight makes good quality stuff IMHO. I can't speak to the quality of the HDX300 yet, as I have not flown it. I'll let you know in a couple of weeks. ;) For $26.00 it's hard to go wrong.

Lee

[steve28]

I can speak to the quality of E-Flight motors , and that would be that they suck , I am currently using one , and have used them in the past they are pethetic when it comes to durability , the magnets come loose in a crash and the can doesnt come apart easily to reglue them. :bomb: they are expensive too , but they are all i can get around here in the right size , 370 3600 KV

[JesusFreak]

Steve:

I've used the E-Flights on some planes, and they've been pretty good. I haven't tried them on the helis. I went the HDX300 route to save weight. I found the Himax motors pretty susceptible to banging around. They will let go. The Eflights seem to pretty similar in design. But I try really hard not to smack my planes in when I land. I think the Rexy gets a little more punishment, and the motor never gets to "coast".

Cheers!
Lee

[carlo_the_wonder_frog]

Hacker e-37 3700kv, Dang thing has too much power i think, ive got the max throttle at 70% and it climbs like crazy. Going to drop a tooth on the pinion and see how well it works then, although the motor is only at 130F after 10 minutes of flight.

[Dan MacKay]

Hi Carlo,

I am going to be using a Park 370 Inrunner which I assume is a comperable motor to yours. I am running the same motor in my other converted "CP" (Almuminum Frame, Brushless of course, Gyro, aluminum boom, dual tail motors) and the thing has tons of power and I get about 20min+ on Thunder Power1320mAh power packs. The HDX is going to be considerably lighter so I should get at least comperable performance. The question is what pinion should I use in the HDX? I am using an 8 tooth in the old bird I am assuming that I should stick with an 8 tooth due to the increased load of driving the belt. I never counted the teeth on the HDX main drive wheel but at first blush it looks like a smaller diameter wheel that the standard CP. If that were the case should I go up a tooth or two to get sufficient head speed?

Dan

[carlo_the_wonder_frog]

The Park 370 should be pretty close in performance to My hacker, the 4200 KV version may be a little more powerful. I am running a 10 tooth right now, too much IMO. I will downsize to a 9 tooth one of these weekends when I don't have 4 other Heli's to mod or fix. Of course testing is where it really all plays out, I may find that the 8 is a better fit for efficiency. I am not looking for ultimate power, but I would like to do FFF for 20 minutes or so on a 1320 lipo, if possible. I have a tach so it should be doable.