Cox Engines Forum
You are not logged in! Please login or register! Guests are limited to posting in the "General Questions (Guest Posting Allowed)" section only. Becoming a member is fast, easy and FREE!


CG for thunder tiger sparkey Babe_b10




CG for thunder tiger sparkey Pixel

Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Latest topics
» maybe fly today
by rsv1cox Today at 10:42 am

» Drones ??
by getback Today at 10:33 am

» Engine cleaning
by PV Pilot Today at 7:56 am

» PDQ Flying clown
by Kim Today at 7:17 am

» Engine Display Stands - Coming Soon!
by getback Today at 6:41 am

» I quit smoking
by PV Pilot Today at 5:15 am

» **VOTE-ON-THE-NEXT-COX-ENGINE-OF-THE-MONTH** (March 2021)
by KariFS Today at 2:36 am

» Help me Find m'y lost Snowmobile engine from california dan
by davidll1984 Yesterday at 11:00 pm

» Cox Babe Bee later-model backplate venting
by Cribbs74 Yesterday at 9:40 pm

» Cox starter spring prototype?
by PV Pilot Yesterday at 6:18 pm

» 3D printing an old railway coach
by rsv1cox Yesterday at 6:13 pm

» Po'boy's exhaust throttle for thin wall cylinder
by davidll1984 Yesterday at 12:53 pm

Cox Engine of The Month
February-2021
Levent Suberk's

"Cox TD .010 with Graupner Silentius free flight model."




PAST WINNERS
CEF Traveling Engine

Win This Engine!
Forum Store
CEF Ear Savers
Gallery


CG for thunder tiger sparkey Empty

CG for thunder tiger sparkey

Go down

CG for thunder tiger sparkey Empty CG for thunder tiger sparkey

Post  akjgardner Thu Apr 16, 2015 6:50 pm

I had a thunder tiger scooter years ago with a norvell .074.I had several hundred flights on it.One day it met its expiration date.I found its electric cousin on ebay.The directions say the CG is 1/4 back from the leading edge.This doesn't seem correct to me as i will have to put a bunch of weight in the nose to balance it.Can anyone here help me with this? thanks a bunch. The inquisitive Joe. (Sorry Mark, I borrowed that from you.)
akjgardner
akjgardner
Platinum Member
Platinum Member

2020 Supporter

Posts : 1102
Join date : 2014-12-28
Age : 61
Location : Milan Indiana

Back to top Go down

CG for thunder tiger sparkey Empty Re: CG for thunder tiger sparkey

Post  Ken Cook Fri Apr 17, 2015 4:31 am

I don't fly r/c but a few of my club members do. I believe I'm familiar with this plane your mentioning. I do recall a conversation between a few that were flying this plane. I believe this plane has elliptical tips? I know they were not satisfied with the stock electric motor and went to a larger 400. This was a few years ago but I recall them saying just like you mentioned in regards to the cg being 2 1/4" back and not 1". I also remember that it seemed like this plane needed a lot of real estate to turn. They had a iron at the field twisting the tips . I don't know if any of this is helpful but it may be a start. Ken
Ken Cook
Ken Cook
Top Poster
Top Poster

Posts : 4227
Join date : 2012-03-27
Location : pennsylvania

Back to top Go down

CG for thunder tiger sparkey Empty Re: CG for thunder tiger sparkey

Post  akjgardner Fri Apr 17, 2015 8:20 am

Thanks Ken. That does help. I think I will convert this one to gas and put a babe bee on it and set the CG 2 and 1/4 back....... Babe Bee .049
akjgardner
akjgardner
Platinum Member
Platinum Member

2020 Supporter

Posts : 1102
Join date : 2014-12-28
Age : 61
Location : Milan Indiana

Back to top Go down

CG for thunder tiger sparkey Empty Re: CG for thunder tiger sparkey

Post  Surfer_kris Sat Apr 18, 2015 3:28 am

The CG is fine right on the main spar, as I remember it, that's also where the manual says that it should be (right where the leading edge sheeting ends). I have a Queen Bee (diesel) in mine now and it flies great. Needs a little more downthrust than the stock engine mount gives, that's all.

A babe bee will be a little marginal I think but will probably fly it. A 6x3 at full throttle should be enough if there is no wind...

CG for thunder tiger sparkey Queen_10

CG for thunder tiger sparkey Vinter10
Surfer_kris
Surfer_kris
Diamond Member
Diamond Member

Posts : 1760
Join date : 2010-11-20
Location : Sweden

Back to top Go down

CG for thunder tiger sparkey Empty Re: CG for thunder tiger sparkey

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum