Multiplex Gemini bipe CG?  
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Multiplex Gemini bipe CG? - 10/10/2007 8:26:42 PM   
gwarbot


 

Posts: 4
Joined: 9/6/2006
From: Indianapolis, IN, USA
Status: offline 		Hello,

Has anyone else had a problem with the http://www.modelspot.com/mpx/Gemini.htmGemini's CG? I read such great things in the recent Backyard Flyer that I quickly ordered one. It's so well designed that there is little room for the CG to be anywhere else than where they say it will be. Mine balanced perfectly, but when airborne, it was literally nose straight up. I don't know how I got it to the ground...

How could this be? I ended up stuffing an old Ni-MH battery into the nose area just to make it flyable. Note that both the magazine article and box itself must be misprints -- the Gem needs at least a 450, which is what I put in it. I expected great things from this plane, but it's been a minor headache thus far.

Any ideas?

Thanks.
       Post #: 1

RE: Multiplex Gemini bipe CG? - 10/13/2007 4:49:27 AM   
tommytorino



Posts: 171
Joined: 2/17/2004
From: East Islip, NY, USA
Status: offline 		Hi

I wrote a little about the Gemini here: http://tommydsblog.blogspot.com/

Perhaps it might answer some of your questions?

Take care

Tommy

(in reply to gwarbot)
       Post #: 2

RE: Multiplex Gemini bipe CG? - 3/28/2008 6:47:57 AM   
dabvid



Posts: 979
Joined: 9/22/2006
From: melbournevictoria, AUSTRALIA
Status: online 		if you have the cg spot on, maybe your thrust line is way out, that would explain it goin straight up with throttle my multiplex minimag did that but instead of making her nose heavy i just programmed in down elevator with higher throttle as i made the mount to tight. i believe the geminis mount is adjustable is the screws on the front.
regrads,
dave

_____________________________

fly slow, fly low, its the way to go

(in reply to tommytorino)
       Post #: 3

RE: Multiplex Gemini bipe CG? - 7/30/2008 8:33:13 PM   
MRCRTR


 

Posts: 1
Joined: 7/30/2008
From: , NC, USA
Status: offline 		Hello;

I had a problem with the second flight of my Gemini last week. It took off smoothly, and then it started to roll over and over to the right. I cut back on the power, and the plane went face first into the dirt. When I checked the damage, it seemed like the right aileron was disconnected from the servo at the connection from the wing. The rest of the plane was damaged pretty badly. The battery was ejected through the front intake, and the rest of the nose seems slightly twisted. I have just now started to look at how to repair it because I was so saddened by the crash. I thought all the connections were tight, so I am not sure if the right wing connection was disconnected before or after. Does anybody have any ideas on how to fix?

Thank You
Mike C.
MRCRTR

(in reply to dabvid)
       Post #: 4

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