Flighttime

[MrMel]

I just dont get this equation,

I used a Actro 32-3 in my logo 600, got max 4.20 flight-time. (pulling 2800-3300mah)
My friend #1 had an actro 32-3 in his, also got 4.20 flighttime.

We changed to Orbit 30-12 HE and gained a little (now running 4.30), (still pulling 2800-3300mah).

Now, Friend #2, has still an Actro 32-3 in his, flying harder then both me and friend #1, has higher RPM, and he pulls 2200-2800 in 4.30!!

I dont get it.

This makes me wonder, is there something that REALLY pulls power on the Logo if you get it wrong?

Pinion alignment
Pinion tightness
3rd support bearing
Belt, belt tension

ideas?
I gonna do some testing with EagleTree & try different setups.

[LITHIUMSTATIC]

Maybe your friend has really good collective management skills.:dontknow

[MrMel]

Not _that_ good, he even beats me (mah wise) when he flying stone hard 3D and my flight yesterday consisted mostly of practicing piro funnels (virtually no pitch used..)

I gonna hook up a eagletree and see hover amp draw...

[OICU812]

Fredrik do not feel alone my friend. I have often wondered about some magical claims out there.... I am around 4:30 as well 4:40 on a 32-3 w/19T Pinion. I do feel somehow it is the motor, not all are created equal even by same brand and size... I have had 2 of the same motor and seen significantly more power from one over the other, more efficiency then the other etc,,, frustrating really when you're trying to dup a setup...

[MrMel]

Thing is that the actros in question has all been mine once, so Ive ran them in my .90 sized ships and havent seen that big of a difference what I can remember.

Just as comparison, I got 5.40 flight-time on 3700 packs (using max 2900) on my Logo 14 doing mixed 3D using Actro 24-4, power wasnt that much less.

[Eyon]

this will all make you happy then.....

yesterday just setting up the heli again in the hover for a flight after a crash, plet 30-12 standard, hacker jeti spin 77 and 10s 5350. between 2000-2100rpm, hover and fast ciccuits......

9 minutes 42 seconds of motor on time!!!!



YEAH!

[LITHIUMSTATIC]

9 minutes 42 seconds of motor on time!!!!



YEAH!

:noteworthy

[Klinger]

I also get confused by some of the claims made on flight times but from what i've seen it comes down to what HS and pitch people are using for 3D. Mates got his Logo 600 running like 2100 HS with 12 degrees and it go's well with 5 to 5 1/2 minute flights on 3700's and keeping a good battery reserve. Now his flights are great, 3D but not total hardcore and he always says my L600 goes like a rocket. Well it should because its running 2300 HS and closer to 14 degrees on the head, but the trade off is i'm down near 4 to 4 1/2 minute flights. Last weekend i changed out my neu motor for the actro 23-3 and 15T pinion, didnt tack it just went out and flew it, it was ballistic for 4 minutes and felt it dying just at the end so auto's it in and realized i'd almost cooked the pack. Next flight i tacko'd it at 2550 HS, insane really but that flight was cool. so i've changed gearing back this weekend to 2250-2300 to see how it goes.
If you have a setup that pulls the power, then you will pull the mah's and there go's your flighttime!
I realize what you saying mel and if you find anything conclusive then let's know and shawn's probably right saying some motors are better than other's and it a bit of a lucky dip to get the best one but there couldnt be a lot in it.
It's one of those things :arggg:

[jamesotron99]

I've tacked about a 300rpm difference just from belt tension changing due to the temperature.

[MrMel]

Just for that cause I use CF Boom, I have now calibrated my eageltree which I had some issues with, will try different setup's.

last flight I had I dumped 3200mah in 4 minutes :(

[MrMel]

Maybe your friend has really good collective management skills.

This was the winner.

I switched radios and suddenly I had 1.5min more flighttime!! How?

Well, my X9303 had those throttle stick limiter, 12FG has not, meaning I had to move the stick alot more with the 12FG for the same pitch, I didnt, instead I basically did a crash course in collective management in my brain, voila, 5.30-6 min flight-time, doing the exact same hard 3D I did before.