Actro 24-4 in a Logo 14 - Some results.

[MrMel]

Got some flying today with the L14 again.
Had throttle at 100%, gonna change pinion to 17T so I can back down the throttle a bit.

Im a bit torn, managed to bog it today, using +12/-12 pitch, it pushes through still.
Amp & watts are lower then my Orbit, then again, when I run the orbit Im at 85% throttle to get 2200hs, with the 16T on the Actro, at 100% I think its avg around 2150.
According to eagle tree the RPM fluxed quite a bit, didnt feel like it inflight though..

Here is some eagletree data, sports flying with some tictocs and rainbows (im not a 3D expert..).

http://www.dacsa.net/heli/eagle/L14-Actro-16T-1.jpg
http://www.dacsa.net/heli/eagle/L14-Actro-16T-2.jpg
http://www.dacsa.net/heli/eagle/L14-Actro-16T-3.jpg

[Daniel Jetschin]

Something didn't sound right there. I'd recommend the 96t mod 1 and 11t mod 1 gearing. How old is your "good" pack, how old the "bad" one ?

[cgbole]

Danny:
did you leave the 200T tail drive gear in it?
i'm running the 138T maingear and 13T pinion. altho i run a 10s pack and a 11s pack.
chuck

[MrMel]

Im actually doubting the EagleTree..

The "bad" pack is pretty new, maybe 20 flights on it, why I say its bad, is that one cell seems to be bad (not as good as the other)
The "good" packs are pretty old (70 flights or so), but have never been run past 15C, however, they are "old formula", which I think is the cause of the over-RPM in the beginning, and lower in the end.

However, overall, the good packs are performing better then the new (ive tried to explain this to FP, they are not keen to answer my mails at all)

I gonna order some TP Extreme's.

Danny, Question for you, have you ever tried running 2 x 5s in serie on your machine?

My setup are as follow.

Main gear 138T, Pinion 16T, now changed to 17T
I have mod 1 gear on backorder..
Tail gear is still 200T.

Do I benefit from changing the tail gear?

I gonna run some flights without the EagleTree, it might even be that little thing that dont feed enough power, gonna check the solders on that one.

[Daniel Jetschin]

So here's the log, looks nice :)

[MrMel]

Turn on watts on that graph :)

89 amp at 3.3 volt = 2937 watts (!) :shock:

[Daniel Jetschin]

Like that ? :)

[MrMel]

Just like that :)

Thats 4.1 HP :shock:

[Daniel Jetschin]

Yep, dunno why you are lurking around @ 2,1 kw .. :glasses2:

[BobbySmith]

Well as promised traded some Esc's around this weekend @ Mulberry FF here in florida the hot set up seemed to be the Hacker A50 10 pole wiht the CC85 controller over the 24-4 wiht a Kontronik Jazz 55 both machine were running 2240 for Hs speed

[OICU812]

The ratio on running the Logo 20 tail gear and the 138t main for a tail gear is the same as the 200t. I asked the very same question, the gain is the reduced wear and durability, that is all. One thing to note if you do this mod or changup, is that you have to slot forward those groove guides your bolts go through.....I made a post about this awhile back... :wink:
http://www.helifreak.com/viewtopic.php?t=18212

[OICU812]

Bobby,,, did you try the Hacker A50 with a Jazz 55-10-32 esc...?? Curious, and what pinion were you running with the HV85 and at what % on the CC controller? Curious on pinion sizes and more details please and thank you! :dontknow

[MrMel]

Did you run the HV85 in governor mode or fixed throttle?

[BobbySmith]

Shawn Matt is flying the Hacker in his L14 and yes he is using the Jazz right now he was telling me the CC85 was better in his so i let him try mine and you could clearly see the power differance his was geared @ 7.6 i beleive. He let me check it out and i flew it enough to feel the power differance over the 24-4

The 24-4 doesnt like the cc85 it has more power wiht the jazz for sure and we tried a few differant throttle curves ex...

I dont quite remember Matts throttle curves i will let him post his settings and thoughts
Mr mel the cc85 was in fixed mode wiht the new software it works very well like that

From past experience and last weekend it looks like the CC favors the higher pole motors

[MrMel]

:twisted:

http://www.dacsa.net/heli/eagle/L14-Actro-17T-1.jpg

I really dont know what I did... I changed the tail gear to 96T, dont know if that did the trick or what, Nah, that should do that much of a change, or?!?!?

Anyway, Power was insane :)

Edit: I know what it was that made it work better, I changed the Pinion, 17T instead of 16T, same RPM just 85% thottle on the Jazz instead of 100% with the 16T..

[misskimo]

hey , I dont know about the hacker motor , but on the Razor , 12S 24-4, CC 85 in fixed mode at 100% man it kicked butt, I do think Kontronics is alittle tame compared to the schulze , well thats been known for a few years , but it seams like the CC and the schulze are putting out around 5% more raw power on the same setup with the jazz, but to over come this with the jazz , 1 t count should give out close results .

Tony

[Daniel Jetschin]

Why have you installed a 96t tail gear :dontknow :shock: You should Install it in the Main section along with an 11t pinion :smokin:

[MrMel]

Have them both, Just wanted to get some data with the 17T to compare to, so next flight will be with 11T and 96main.

[OICU812]

What r eally surprises me now that I see these logs on this raved about motor is how low the amp max is, 90amps max is VERY acceptable imho. Now jsut to clarify you people running this Actro say it gets the motor and the lipos very very warm? The amp draw and the min pack values would not say they do..... Very strange, every motor combo I have tried that even pulled as much as your guys graphs didn't really get the pack all that warm, maybe 105-110 tops in temp.. :roll: Hmmmmmm :dontknow

[BobbySmith]

Wanted to add i flew a Jeti spin75 in my L14 i got 2solid flights on it and the motor seemed to be very happy it also had more power then wiht the Jaz55 i will try to get a fdr on it and fly it again

[MrMel]

Temp probe in the Graph above is battery temp in C.

[OICU812]

Temp probe in the Graph above is battery temp in C. 13 degrees C! COLD! WOW, what was the ambient? below zero C?? I am guessing why that is such a low number....?

[MrMel]

Ambient was about 0 C

:D

[Daniel Jetschin]

Did you pre-heat the packs ? It's a must...

[MrMel]

Not this one, but normally, yes.