RE: Purple Brushless Electric Ultimate BiPe  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       



All Forums >> RC Airplanes >> ARF or RTF >> NitroModels Support >> RE: Purple Brushless Electric Ultimate BiPe
Page: <<   < prev  1 [2] 3 4   next >   >>  

Login
Message << Older Topic   Newer Topic >>
RE: Purple Brushless Electric Ultimate BiPe - 12/8/2006 8:20:22 PM   
rev


 

Posts: 232
Joined: 1/25/2002
From: altoona, PA, USA
Status: offline 		I"am using the motor,esc set up on a mini stick now. It flys good but vert is limited. It has enough power to do rolling harriers, snaps and great flat spins.


_____________________________

RC pilots - We are outstanding in the field !!

(in reply to opjose)
       Post #: 26

RE: Purple Brushless Electric Ultimate BiPe - 12/9/2006 11:17:43 PM   
KWJ48



Posts: 236
Joined: 12/18/2005
From: Midlothian, VA, USA
Status: offline 		Here's some pics of my build. I haven't flown it yet , but I used hs 55 servos, this ESC, and this motor. The motor is just a bit more kv than the park 480 so it should do well.



Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize

(in reply to rev)
       Post #: 27

RE: Purple Brushless Electric Ultimate BiPe - 12/10/2006 12:26:50 AM   
rev


 

Posts: 232
Joined: 1/25/2002
From: altoona, PA, USA
Status: offline 		It looks like it is build fairly good, by your pics.

_____________________________

RC pilots - We are outstanding in the field !!

(in reply to KWJ48)
       Post #: 28

RE: Purple Brushless Electric Ultimate BiPe - 12/11/2006 12:15:26 AM   
opjose



Posts: 5367
Joined: 11/26/2005
From: Poolesville, MD, USA
Status: offline
quote:

ORIGINAL: KWJ48

Here's some pics of my build. I haven't flown it yet , but I used hs 55 servos, this ESC, and this motor. The motor is just a bit more kv than the park 480 so it should do well.




Hah I just put in a motor with similiar specs.

Now the BiPe flies with about 40% throttle and does go straight up almost unlimited.

My flight times with my 2200mAh batteries have been cut to about 14 minutes though, whereas the other motor was giving me about 30 minutes... but it was far more anemic.

Make sure your ESC will handle 20amps+.

My 15/25 amp ESC is really borderline with that motor.... I'm going to change it out too.





< Message edited by opjose -- 12/11/2006 12:37:17 AM >

_____________________________

-
Build em'', fly em'', crash em'' and build more.

(in reply to KWJ48)
       Post #: 29

RE: Purple Brushless Electric Ultimate BiPe - 12/11/2006 12:23:47 AM   
rev


 

Posts: 232
Joined: 1/25/2002
From: altoona, PA, USA
Status: offline 		What motor?

_____________________________

RC pilots - We are outstanding in the field !!

(in reply to opjose)
       Post #: 30

RE: Purple Brushless Electric Ultimate BiPe - 12/11/2006 12:39:37 AM   
opjose



Posts: 5367
Joined: 11/26/2005
From: Poolesville, MD, USA
Status: offline 		I upgraded to a motor almost identical to this one CLICK ME! which is what KWJ48 used.

It draws quite a bit from the ESC even when underpropping the plane.



_____________________________

-
Build em'', fly em'', crash em'' and build more.

(in reply to rev)
       Post #: 31

RE: Purple Brushless Electric Ultimate BiPe - 12/11/2006 12:52:51 AM   
rev


 

Posts: 232
Joined: 1/25/2002
From: altoona, PA, USA
Status: offline 		What size and make prop are you using?

_____________________________

RC pilots - We are outstanding in the field !!

(in reply to opjose)
       Post #: 32

RE: Purple Brushless Electric Ultimate BiPe - 12/11/2006 12:53:59 AM   
KWJ48



Posts: 236
Joined: 12/18/2005
From: Midlothian, VA, USA
Status: offline 		The esc is a 35 amp, so it should be ok. I found a 10x5e and a 10x7e at my hobby shop to try. I also ordered a couple of 9'' e props to try. opjose what prop are you using with that motor ?

(in reply to opjose)
       Post #: 33

RE: Purple Brushless Electric Ultimate BiPe - 12/11/2006 3:12:28 AM   
opjose



Posts: 5367
Joined: 11/26/2005
From: Poolesville, MD, USA
Status: offline 		I flew it today with a 9x6E prop.

The plane was nice and fast with this, flying constant level at about 35-40% throttle.

I did note a LOT of torque however as I kept trimming the ailerons throughout the flight.

The small wings of the BiPE may be coming into play.

I'm using the Tower Pro ESC that is rated at 15A continuous 25A burst.

The ESC was warm, approaching HOT, one of my batteries got very warm, indicating that I was reaching the battery's maximum draw. Another identical pack stayed cool throughout the flight...

I'm going to order higher draw batteries for this plane... (check out the ones on NP's web page, they are pretty good for the price, I have four of them which I use for my Super Sportster EP in a 3S2P configuration... 4400mAh...).

I brought the plane in after 12 minutes on each 2000mAh pack today, as I did not know when the cutoff would kick in... I haven't timed the duration yet.





_____________________________

-
Build em'', fly em'', crash em'' and build more.

(in reply to KWJ48)
       Post #: 34

RE: Purple Brushless Electric Ultimate BiPe - 12/11/2006 8:00:20 PM   
KWJ48



Posts: 236
Joined: 12/18/2005
From: Midlothian, VA, USA
Status: offline 		Well I finally maidened my ultimate today. I only ran 2 packs (TP 2100's) through it though. A couple clicks and the plane flew great. I flew with a 10x5e apc prop and it seemed to have plenty of power. It slowed down pretty good too. Run times were roughly 10-12 min. I didn't throw nothing hard at it. I did notice (with my set-up) on tight loops it liked to snap out at the top. The knife edge is pretty good too. I flew mainly at 1/2 throttle (full throttle a couple of times) and the ESC and battery were pretty warm, but I had no cut outs. I need to get a watt meter so I can tell how much power I'm pulling. I think I need larger arms for my aileron servos, as my roll rate was kind of slow, but still not bad, compared to my rudder and elevator. On high rates I have as much as I can get on all the tail feathers, and it seems to flip the plane around pretty good. On the second landing I came down kind of hard, but no damage other than the landing gear was bent some. I think I'm gonna put some checkers on the bottom, as this plane can get small quick if you don't keep it close. This is a great little bipe.

(in reply to opjose)
       Post #: 35

RE: Purple Brushless Electric Ultimate BiPe - 12/11/2006 11:21:21 PM   
rev


 

Posts: 232
Joined: 1/25/2002
From: altoona, PA, USA
Status: offline 		My plane should be here tomorrow with any luck. I have a extra motor and esc since my mini stick kissed the ground yesterday.

_____________________________

RC pilots - We are outstanding in the field !!

(in reply to KWJ48)
       Post #: 36

RE: Purple Brushless Electric Ultimate BiPe - 12/12/2006 1:44:29 AM   
opjose



Posts: 5367
Joined: 11/26/2005
From: Poolesville, MD, USA
Status: offline
quote:

ORIGINAL: KWJ48

I did notice (with my set-up) on tight loops it liked to snap out at the top.


This is quite common with the Ultimates... There is a range of elevator throw where this will happen.

Either INCREASE or DECREASE the throw until it stops.

Increasing causes both wings to stall equally stopping the out of round... decreasing lessens the stall with the same effect.

I increase mine to the point that the high rates stop going out of round on the tight loops and the low rates give me big unstalled loops.



_____________________________

-
Build em'', fly em'', crash em'' and build more.

(in reply to KWJ48)
       Post #: 37

RE: Purple Brushless Electric Ultimate BiPe - 1/7/2007 1:58:38 AM   
rev


 

Posts: 232
Joined: 1/25/2002
From: altoona, PA, USA
Status: offline 		The purple bird is ready to fly- once the weather coperates. I replaced some of the hardware, wheel axle bolts were to short . and it balances tail heavy at the rec. c.g. .

_____________________________

RC pilots - We are outstanding in the field !!

(in reply to opjose)
       Post #: 38

RE: Purple Brushless Electric Ultimate BiPe - 1/7/2007 3:14:53 AM   
opjose



Posts: 5367
Joined: 11/26/2005
From: Poolesville, MD, USA
Status: offline 		At the recommended C.G. mine still has a tendancy to climb at 60% throttle so don't be afraid to be a little nose heavy.

I have a 2200mAh battery in mine.

_____________________________

-
Build em'', fly em'', crash em'' and build more.

(in reply to rev)