View Full Version : Maidened my Logo 5003D
BruceW
12-19-2007, 08:28 PM
WOWWWW!!!!
I can't believe the power, stability, and how quiet this helicopter is. Today I spooled it up in a field near work for the first test flight (just a hover with a few small punch outs) just to be on the safe side. The blade tracking was perfect but I need to trim cyclic a little, play with gyro gains, do a once over check, etc. then do some real flying.
This helicopter is fantastic and I can tell it will have plenty of pop and power with the current setup. My throttle settings are normal(0,32.5,65,65,65), idle1(70 flat), idle2 (75 flat). Even though I didn't do any FF I did switch between normal and idle1/2 and could hear the power changes so I know the Jazz governor is working fine. Oh the soft spoolup is cool also.
In the meantime, I've got several breakin flights needed for the EVOlite 6S 5350mAh battery. It looks like the battery will have plenty of punch and flight time so I'll probably pick up another one shortly (after a few hard flights).
OICU812
12-19-2007, 10:04 PM
Good to hear all went well Bruce, congradulations on a good build, sounds like you have things close to being spot on. :hug:
Ticidytoc
12-20-2007, 01:25 AM
Nice Bruce, you will like those Evo Lites, they stay nice and consistent though out the flight.
Sure is quiet, I think the smaller 500 from Align makes more noise than my 600.
Good work Bruce! :thumbup: Looking forward to your flight reports.
Please log any data you can (HS, flight time, mAh returned to pack....) so we can compare given the almost identical setups.
Many of us are heading to Irvine? this weekend to fly. Far drive for you, but hope you can make it out sometime.
BruceW
12-20-2007, 01:56 AM
Stayed in normal (65%) mostly and didn't push the first couple flights but the batteries, ESC, and motor were barely warm. Looks like the EVOlite 5350s are the ticket. Tomorrow I'll try to push everything a little harder and see what happens. The Jazz 80 BEC should be fine for now till I get the WR BEC issue straightened out but maybe I'll mount a heat sink in the next couple days.
Since I don't have a temp reader I'll only be able to guess on temp. Measuring HS will also be a little tricky with my tach but I'll try to get some readings. Looks like I'll invest in an Eagle Tree meter at some point and get a few sensors. So far, I've put back 3.06 and 2.85Ah but flight time was inconsistent since I was starting and stopping a few times.
Rob, I won't be able to travel south this weekend since its too close to Xmas and I still have some shopping to do but I'll get down there one of these weekends. I would really like to see all the different machines fly that I've been watching in the videos.
BruceW
12-20-2007, 03:18 PM
Flew again this morning for 5 minutes and did a few FFF passes, tic-tocs, flips/rolls, inverted flying, and punch outs in idle 1 (70% on 16T) and put back 3.09A (58% used). This time I noticed the motor seemed hot and the ESC was quite warm. Looks like I'll ask for an IR temp sensor for Xmas. Now I'm thinking of making a custom air scope on the canopy over the motor/ESC.
Cyclic response could be a little faster but I'll bump up head speed after the breakin. Might even try the 15T pinion and run it faster. I think gyro gains could go higher but I'm going to try dialing down the rudder expo first and increase head speed.
Also, I figured a way to have have different gyro gains on normal/idle1/idle2 by mixing Aux2->gear for JR/DX7 type radios. As I play with gyro more I'll figure out if I need separate gain between idle 1 & 2.
Review of current setup:
motor: Hacker A40-10L 8pole
pinion: 16T mod 0.7
blades: Rotortech 560mm
cyclic servos: Futaba BLS 451
tail servo: Futaba BLS251
gyro: Spartan DS760
ESC: Jazz 80
BEC: (5V) Using built in BEC on Jazz for now but will go back to WR soon
Rx: JR R790
Battery: EVOlite 6S 5350
Radio settings:
gyro gain: 35% (gear mode) on JR = 49% normalized
cyclic pitch: 7.5%
pitch: +/-12
rudder endpoint: 105 - will bump up to 115 for faster piro rate
Throttle:
normal(0, 32.5, 65, 65, 65)
idle1(70 flat)
idle2(75 flat)
Any idea what head speeds its running now?
BruceW
12-20-2007, 05:22 PM
I didn't pull out the tach today but I'll try to do it next time.
OICU812
12-20-2007, 06:31 PM
From my memory it was around 2260 at 75% rpm on my machine with the Jazz 80-6-18.
bruce, i use a 15T pinion on my 8 pole motor! if you want snappy cyclic, get the head speed about 2300-2350...then its fun!
bruce, i use a 15T pinion on my 8 pole motor! if you want snappy cyclic, get the head speed about 2300-2350...then its fun!
Hey Ian,
I believe that both A40's are 8-pole, you're running the hotter 1300kv (-8).
Curious what battery, flight times and mA returned to pack you're getting with that setup?
Mathias
12-21-2007, 10:08 AM
Congratulations, Bruce!
What is your impression for the Spartan DS760?
BruceW
12-21-2007, 12:59 PM
Congratulations, Bruce!
What is your impression for the Spartan DS760?
So far it seems very stable and crisp in its actions but I haven't really put it through the acid test yet. Hopefully at lunch I'll get a chance to push it and get a better impression.
BruceW
12-21-2007, 01:04 PM
bruce, i use a 15T pinion on my 8 pole motor! if you want snappy cyclic, get the head speed about 2300-2350...then its fun!
As zguy mentioned, I have the A40-10L with 110KV so I'll need the 16T if I want those kind of head speeds. Hopefully I'll get a chance to tach it today - maybe in the parking lot at work. I'm curious to see if the Jazz governor produces a linear increase in head speed between the various throttle settings.
BobbySmith
12-21-2007, 01:15 PM
Bruce i would stick wiht the 15 and just go to a higher throttle percentage remember the faster you spin the Hacker the happier it is
Glad you liek the machine
Bobby
Bruce i would stick wiht the 15 and just go to a higher throttle percentage remember the faster you spin the Hacker the happier it is
Glad you liek the machine
Bobby
YES! :thumbup::thumbup:
Bobby, what HS are you running? I really enjoy your flying! :noteworthy
BruceW
12-21-2007, 01:49 PM
Bruce i would stick wiht the 15 and just go to a higher throttle percentage remember the faster you spin the Hacker the happier it is
Glad you liek the machine
Bobby
I'll give the 15T a try this weekend and see how it goes. The motor definitely seemed hot with the 16T at 70%. In the meantime I'll tach it at 65, 70, 75% and use that as a comparison.
sorry! had a senior moment! yes im running the A40-8L-8P, 15T at 80% governed on my kontronic.
in theory to get the HS i have, you will need a 18T pinion
Ian
BruceW
12-21-2007, 02:34 PM
sorry! had a senior moment! yes im running the A40-8L-8P, 15T at 80% governed on my kontronic.
in theory to get the HS i have, you will need a 18T pinion
Ian
Wow, that would sure make for a hot motor! I'm thinking of staying in the 2250->2300 range for now.
BobbySmith
12-21-2007, 03:04 PM
I would run that Jazz@ about 80% with that motor i have never seen over 150 for temps and i use the 14 tooth pinion@ 2170 for hs
I can get this motor to make some serious power wiht a 16 tooth pinion but the motor is only good for about 12 flights and then it is done
Bobby
BruceW
12-21-2007, 04:46 PM
I tached the HS at lunch with the 16T and heres what I got:
65% - 2190
70% - 2250
75% - 2350
It looks like the HS has a linear increase with TC. At this point it looks like the motor should probably be run with the 15T and the TC raised as others stated. The difference in calculated HS between 15T and 16T with everything else staying the same is 150 RPM. I like the feel of the 2350 HS but might bring it down to 2300 for idle 2. This means with the 15T the sweet spots for the TC should probably be:
normal - 70% = ~2050
idle 1 - 80% = ~2200
idle 2 - 85% = ~2300
Does that sound right for the Jazz 80?
BTW - Tictocs were very crisp and smooth at 2350. Even cyclic response was very snappy even with 5V to the servos. I also increased EPA for the rudder to 115 to speed up piro rates on the Spartan DS760 and that felt about right. Its fast but not out of control. The tail authority seems like its dialed in just about right. I played with the acceleration/deceleration settings in the Spartan configuration software last night and turned it down just a little bit from the default. This is one sweet gyro.
EDIT: Here is the link to the video taken from todays flight. Sorry for poor quality.
http://brucewsb.s3.amazonaws.com/Videos/Logo5003D_F3b.wmv
BruceW
12-21-2007, 04:48 PM
I would run that Jazz@ about 80% with that motor i have never seen over 150 for temps and i use the 14 tooth pinion@ 2170 for hs
I can get this motor to make some serious power wiht a 16 tooth pinion but the motor is only good for about 12 flights and then it is done
Bobby
Bobby, your running a V-bar correct? So I'm guessing the HS would be dialed down from a flybar to get equal performance.
BobbySmith
12-21-2007, 05:28 PM
Bruce i run the CC125 on my 500 and it is flybarless i try to stay in what i feel is the controllers sweet spot on the Jazz i like it around 80 to 85% wiht the Hackers then i gear to get my head speed i do the same wiht the CC controllers and it is @ 65% which is very close to the jazz @ 80 to85% that is were that Hacker seems the happiest
Bobby
I tached the HS at lunch with the 16T and heres what I got:
65% - 2190
70% - 2250
75% - 2350
It looks like the HS has a linear increase with TC. At this point it looks like the motor should probably be run with the 15T and the TC raised as others stated. The difference in calculated HS between 15T and 16T with everything else staying the same is 150 RPM. I like the feel of the 2350 HS but might bring it down to 2300 for idle 2. This means with the 15T the sweet spots for the TC should probably be:
normal - 70% = ~2050
idle 1 - 80% = ~2200
idle 2 - 85% = ~2300
Does that sound right for the Jazz 80?
BTW - Tictocs were very crisp and smooth at 2350. Even cyclic response was very snappy even with 5V to the servos. I also increased EPA for the rudder to 115 to speed up piro rates on the Spartan DS760 and that felt about right. Its fast but not out of control. The tail authority seems like its dialed in just about right. I played with the acceleration/deceleration settings in the Spartan configuration software last night and turned it down just a little bit from the default. This is one sweet gyro.
A buddy took some video so I'll upload it later.
Bruce, Your set up is running almost identical to mine and I'm guessing that your HS ratings are being taken at the beginning of the flight with voltage up. With 15T I'm getting 2280 at the start, 2250 mid flight and 2190 at 5:30. Your Evolites have been reported to hold a more consistent voltage throughout the flight, so it will be interesting to see what works for you. What I really need to get is a data logger!;)
I did like the 2350 HS with the 16T, but it was just coming down a bit warm for my liking. I don't think there is any harm except maybe shorter battery life. The 560mm blades have returned the quick cyclic at 2250 that I needed 2350 to achieve w/ the 550's.
Glad all is going well and keep the reports coming.
BruceW
12-21-2007, 08:38 PM
Here is a link to a movie from todays flight. My buddy was using the movie mode on his new camera and didn't have it setup properly so you'll need excuse the quality (and comments:wink:). Anyway, it was a moderate test flight with very light 3D until I dial it in a bit more.
http://brucewsb.s3.amazonaws.com/Videos/Logo5003D_F3b.wmv