RunRyder RC
WATCH
 1 page 1463 views POST REPLY
01-12-2006 02:30 PM  13 years ago
Topic Vote0Post 1
upperking

rrApprentice

Spring Hill, Florida

MyPosts All Forum Topic
Mx 400 video
heres a video of my latest heli on test flight
http://www.upperboard.com/mx400.wmv
SHARE  PM  EMAIL  HOMEPAGE  Attn:RR  Quote
01-12-2006 05:31 PM  13 years ago
Swashplate

rrKey Veteran

UK

MyPosts All Forum Topic
Very nice. Was hoping to see some smashing 3D
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-12-2006 08:29 PM  13 years ago
BoneDoc

rrApprentice

San Antonio, TX

MyPosts All Forum Topic
flying with that much obstacle is gutsy enough for my taste .

No inverted hovering 1 foot off the deck ?
**If you ain't crashing, you ain't flying hard enough**
SHARE  PM  EMAIL  HOMEPAGE  Attn:RR  Quote
01-12-2006 09:37 PM  13 years ago
jh4db536

rrApprentice

Monterey Park, California

MyPosts All Forum Topic
are you using soft start or gov mode? that thing spools up so fast...im surprised u dont strip the maingear.

what motor?
SHARE  PM  EMAIL  Attn:RR  Quote
01-12-2006 10:07 PM  13 years ago
Swashplate

rrKey Veteran

UK

MyPosts All Forum Topic
Even i noticed that, the motor was screaming. But then, thought it could be microphone.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-13-2006 02:13 AM  13 years ago
BikeNBoatN

rrVeteran

Santa Ana, CA USA

MyPosts All Forum Topic
Nice vid and nice flying. Sounds very much like my MX400.

I think I know why it jerks around so much at the start. You plugged it in and let the gyro initialize pointing in one direction. Then you picked up the heli (a scary thing to do, by the way, picking up a live, armed heli!) and set it down pointed in a different direction. The HH gyro still thinks the heli is supposed to be pointed in the direction it was when it initialized, so when it starts to spool up, the gyro tries to go back to that original direction. Hence, it spins around.

Myself, I set the heli down where it's going to start from, plug it in, let it initialize, then don't move it from that place. I do what you did in your vid all the time with my BCP, but it's a lightweight little heli with a rate gyro. I don't feel comfortable carrying something as powerful as my MX400 around once the ESC has armed. If it decides to glitch or something (which mine unfortunately has done), it could be quite a catastrophe!

Just my two cents.

Brent.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
01-13-2006 04:45 AM  13 years ago
Intrepid175

rrNovice

Texas City, TX

MyPosts All Forum Topic
Actually, if the nose of the model turns more than a set number of degrees, the HH gyro stops trying to bring it back to the starting heading and just tries to stop the motion. Once it gets a handle on that, it has a new heading that it tries to work with until the pilot commands otherwise.

What will happen in the mean time is that the gyro will be holding the tail command hard over and it stays that way until it has a reason to stop. When the rotor spools up and the tail rotor starts actually doing something, it naturally turns until the gyro can neutralize the command.


Upperking, nice flying. With regards to the gyro though, at one point when you were holding the model up and pointing out the gyro at the beginning of the vid, it looked like the light on the gyro was flashing. Is that a Futaba 401? It looks like it might be. If so, the light shouldn't be flashing after the initialization process. The 401 likes to start up in HH mode. If it does, the light will come on solid. If you switch to normal mode afterwards, the light will go out. The only time the light flashes is when a tail command is being applied, otherwise, it should either be on solid or not at all.

If that's not a 401 the please excuse the last paragraph!

Fly Safe,
Steve R.
SHARE  PM  EMAIL  Attn:RR  Quote
01-13-2006 01:51 PM  13 years ago
upperking

rrApprentice

Spring Hill, Florida

MyPosts All Forum Topic
Yes it is a 401
but when I moved it, It starts flashing. i should have unpluged it to reset it before spooling it up for takeoff..


I bought it as a pro kit for 199.00 included the helimax speed controller, cnc tail, and metal top and a 12 pole helimax motor, the 6 pole i have on my other MX and it has more high end for etreme 3d.
It flies real nice and its rock solid in flight...
using a 1350 power tiger 3 celllipo
The 12 pole might not be a super powerhouse but it sure lasts a long time on the 1350 lipo and gets over 10 minute flights with plenty of pull and it does not get very hot and its easy on the smaller lipos..
very torquey to..
SHARE  PM  EMAIL  HOMEPAGE  Attn:RR  Quote
01-13-2006 11:54 PM  13 years ago
NTM

rrVeteran

Lloydminster, Alberta, Canada

MyPosts All Forum Topic
What pinion are you running on your 12 pole motor?

I have the same 12 pole in my mx400 and have been somewhat indecisive when it comes to pinions. Not much information out there on this motor and I have no tach to set head speed with.
It doesn't seem to like the governor mode on my cc35, surges at around 80-90% throttle.
SHARE  PM  EMAIL  Attn:RR  Quote
01-14-2006 01:52 AM  13 years ago
ADRYAN

rrKey Veteran

Stouffville, Ontario, Canada

MyPosts All Forum Topic
Nice vid man.

One question though.... what are your throttle and pitch curves? It sounds a bit off, like maybe fixed pitchy.... like you've set up the heli 5 degrees and 50% power at midstick. Anyway, I'm just curious.
SHARE  PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
02-03-2006 06:16 PM  13 years ago
freck

rrNovice

worcestershire, united kingdom

MyPosts All Forum Topic
video
hi, upperking , just watched your video, very impressive, just bought an ark x400 looking forwards to getting it flying,flew heli,s six years ago so i will be a bit rusty ,till i get settled with it.
after that the skys the limit.
SHARE  PM  EMAIL  Attn:RR  Quote
02-03-2006 07:28 PM  13 years ago
celihopter

rrApprentice

Planet Earth first on the left..

MyPosts All Forum Topic
Nice video
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 1 page 1463 views POST REPLY
 Print TOPIC  Make Suggestion 

 7  Topic Subscribe

Monday, September 16 - 12:07 am - Copyright © 2000-2019 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online