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!


Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Cox Engine of The Month
November-2017
MauricioB's

"Cox Tee Dee .010"



PAST WINNERS
Speed Contest 2018
CEF Traveling Engine

Gallery


Win This Engine!
The Traveling Prop
World of Aviation

Baby Ringmaster build

Page 1 of 2 1, 2  Next

View previous topic View next topic Go down

Baby Ringmaster build

Post  Canso07 on Fri Feb 24, 2017 1:02 am

Hello,

Just started to build a Baby Ringmaster 22" wingspan . Going to put a Tee Dee .051engine on it to give it some jam. First time building one, heard lots about them. Kinda excited about it hope it turns out decent. Just had one question about what size fuel tank to use? I was thinking about 5 mins of flying would be enough per go. I like using the metal wedge type tanks. So thinking of 1/4 oz or 1-3 oz? Any info appreciated


Thanks.
avatar
Canso07
Bronze Member
Bronze Member

Posts : 49
Join date : 2016-12-12
Age : 36
Location : Calgary, Canada

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  Canso07 on Fri Feb 24, 2017 1:04 am

Here's the pictures...




Last edited by Canso07 on Fri Feb 24, 2017 1:57 am; edited 2 times in total
avatar
Canso07
Bronze Member
Bronze Member

Posts : 49
Join date : 2016-12-12
Age : 36
Location : Calgary, Canada

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  Cribbs74 on Fri Feb 24, 2017 1:34 am

3/4 oz or more.

On a bladder I have run 1oz in 5mins.

Your pic looks like a ring jr. It's something different than what I usually see. I like it.
avatar
Cribbs74
Moderator

Trusted Seller
Posts : 9531
Join date : 2011-10-24
Age : 43
Location : Tuttle, OK

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  getback on Fri Feb 24, 2017 6:18 am

COOL !! It's coming along nicely , but i would suggest a tighter stab/elevator relation if possible , a bit of air gap there . I see your in Canada Welcome to the Forum! This Site Rocks!
avatar
getback
Top Poster
Top Poster

Posts : 4272
Join date : 2013-01-18
Age : 60
Location : julian, n.c.

View user profile

Back to top Go down

Baby Ringmaster

Post  RK Flyer on Fri Feb 24, 2017 7:07 am

It looks like you have a good start, which kit is that???

RK Flyer Flying
avatar
RK Flyer
Gold Member
Gold Member

Posts : 250
Join date : 2013-07-16
Location : Somerset, Kentucky

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  Canso07 on Fri Feb 24, 2017 7:21 am

Thx guys...I'll go 3/4 to 1oz fuel capacity then. I guess the td burns a bit more than the old baby bee lol.Yes there is a bit of a gap there I'll probably build another set and try the old clothes hinges.

Thanks.
avatar
Canso07
Bronze Member
Bronze Member

Posts : 49
Join date : 2016-12-12
Age : 36
Location : Calgary, Canada

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  Canso07 on Fri Feb 24, 2017 7:38 am

No kit just printed plans...I think I printed them from outer zone? It says they modified from the sterling plans. I'll check later today where I printed them.
avatar
Canso07
Bronze Member
Bronze Member

Posts : 49
Join date : 2016-12-12
Age : 36
Location : Calgary, Canada

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  batjac on Fri Feb 24, 2017 9:56 pm

Canso07 wrote:Thx guys...I'll go 3/4 to 1oz fuel capacity then. I guess the td burns a bit more than the old baby bee lol.Yes there is a bit of a gap there I'll probably build another set and try the old clothes hinges.

Thanks.

Were it I, I think I'd just take an X-Acto knife and cut away the hinges and just work around them. No need to cut another elev/stab set. Those look perfectly usable with cloth or thread hinges.

The Salvager Mark
avatar
batjac
Diamond Member
Diamond Member

Posts : 1447
Join date : 2013-05-22
Age : 54
Location : Portland, OR, USA

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  Canso07 on Sat Feb 25, 2017 11:48 am

When I was building the horizontal stabilizer/elevator it looked backwards to me so i switch it around.  Lots of pictures that I've seen showed the stabilizer was smaller than the elevators and then I seen a picture like my plans show it with bigger stab and smaller elevators. Any thoughts on this?
avatar
Canso07
Bronze Member
Bronze Member

Posts : 49
Join date : 2016-12-12
Age : 36
Location : Calgary, Canada

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  batjac on Sat Feb 25, 2017 1:05 pm

Canso07 wrote:When I was building the horizontal stabilizer/elevator it looked backwards to me so i switch it around.  Lots of pictures that I've seen showed the stabilizer was smaller than the elevators and then I seen a picture like my plans show it with bigger stab and smaller elevators. Any thoughts on this?

Canso, Ringmasters are seriously over-controlled.  It's true that the original design has a larger elevator than stab, but it really should be the other way around.  With the elevator smaller than the stab you're still going to have WAY more elevator than you need.  With the elevator larger than the stab as you've built it I'd recommend that you put the pushrod on the inner hole of your bellcrank.  You'll still have have more than enough elevator throw.  It's very easy to stall out the plane with the larger elevator.  On my Beginner Ringmaster I have the elevator larger than the stab and it stalls out if I give it up elevator too aggressively, and the elevator is smaller than the one you have.

I'm looking at the .pdf of the plans you're building from (I downloaded them, too), and the elevator has a very different shape than the Sterling Baby Ringmaster.  The wing has also been redesigned.  The ribs are much thinner that the original Baby Ringmaster.  If you look at the bottom of this page, you'll see several plans in .pdf format to download.  The "half a ring built up" is about as close to the original Sterling Baby Ringmaster as you'll find.

https://www.rcgroups.com/forums/showthread.php?865367-Ringmaster-Jr-and-Baby-Plans/page2


I recently built a full size Ringmaster S-1 kit, and had to make up a new elevator horn.  The original horn had the hole about 1/2" from the hinge line.  I've seen a couple of guys flying the plane with this position and they bounce all over the sky.  The horn I made has the pushrod hole 7/8" down from the elevator hinge line, and I should have gone out to 1".  Ringmasters as designed are over-elevatored.  And I LIKE lots of elevator area on my designs.

The Aggressive Mark
avatar
batjac
Diamond Member
Diamond Member

Posts : 1447
Join date : 2013-05-22
Age : 54
Location : Portland, OR, USA

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  Canso07 on Sat Feb 25, 2017 2:34 pm

Thanks Mark for the replys. Yeah I'll do the smaller elevators. I like the " half a ring built up" plans, going to print them. I got lots of tank mount .049s for that model, hopefully future project. Going to do a Sig's Buster next I think.

Canso.
avatar
Canso07
Bronze Member
Bronze Member

Posts : 49
Join date : 2016-12-12
Age : 36
Location : Calgary, Canada

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  chevyiron420 on Sun Feb 26, 2017 12:15 am

That Ringmaster uses the smaller elevator and also probably has a funny looking rudder and longer tail moment. I think it is a estes design? My son has one in junior size and it flies good. I have one that I scaled down from the junior size for use with a .099 cub and it flies good. The wing is thiner though.
avatar
chevyiron420
Gold Member
Gold Member

Posts : 177
Join date : 2015-01-28
Age : 59
Location : Barney Georgia

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  Oldenginerod on Sun Feb 26, 2017 1:23 am

chevyiron420 wrote:That Ringmaster uses the smaller elevator and also probably has a funny looking rudder and longer tail moment. I think it is a estes design? My son has one in junior size and it flies good. I have one that I scaled down from the junior size for use with a .099 cub and it flies good. The wing is thiner though.

.099 on a scaled down RM Junior?  Sounds like overkill. How was the weight?  I'd like to use a Cub .099 on something but they're just too darn loud Mad
I know they are pretty light for their capacity.
avatar
Oldenginerod
Diamond Member
Diamond Member

Posts : 1895
Join date : 2012-06-15
Age : 55
Location : Victoria, Australia

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  NEW222 on Sun Feb 26, 2017 4:02 pm

If you have not yet cut the tail surface apart, I would not do so. I would just keep going like you were and seal the hinge gap with tape or the like after it is finished. Just my opinion.
avatar
NEW222
Platinum Member
Platinum Member

Posts : 1103
Join date : 2011-08-13
Age : 39
Location : oakbank, mb

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  Canso07 on Sun Feb 26, 2017 4:43 pm

Yeah already made a new one because I made the elevators bigger than stab...which I was told it would be easy to over control which make sense. I tried cloth hinges this time which is a first for me..just letting drying now.

Thanks for the tip.
avatar
Canso07
Bronze Member
Bronze Member

Posts : 49
Join date : 2016-12-12
Age : 36
Location : Calgary, Canada

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  getback on Sun Feb 26, 2017 6:40 pm

Hea thats the one i built that Mark is shown , I t was out of control from get go off the line came in loose lines and SLAP the grn. The best part was after when it caught on fire and my son was going to [bleep] on it to put out Huh... Always bring rags to a fire party lol! lol!  It in the repair pit now   Before the fire!! I Love This Forum!
avatar
getback
Top Poster
Top Poster

Posts : 4272
Join date : 2013-01-18
Age : 60
Location : julian, n.c.

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  NEW222 on Sun Feb 26, 2017 6:52 pm

I also have this funny feeling about this plane with a TeeDee. I think that this thing will 'FLY' like a raped ape. Trainer, I think not... Cannot wait.
avatar
NEW222
Platinum Member
Platinum Member

Posts : 1103
Join date : 2011-08-13
Age : 39
Location : oakbank, mb

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  Canso07 on Sun Feb 26, 2017 7:40 pm

That's to bad it was hard to control getback..looked like a nice model bud.
Yeah can't wait NEW22 it should go like a bat out of hell...lol. I'll get some pics up soon of the stab/elevators.

Canso.
avatar
Canso07
Bronze Member
Bronze Member

Posts : 49
Join date : 2016-12-12
Age : 36
Location : Calgary, Canada

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  Canso07 on Sun Feb 26, 2017 8:23 pm

Here's my much better stab/elevator. A lot smaller air gap between. The fabric hinges were actually easy to do for my first. It's starting to look like something.

Canso.


avatar
Canso07
Bronze Member
Bronze Member

Posts : 49
Join date : 2016-12-12
Age : 36
Location : Calgary, Canada

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  NEW222 on Sun Feb 26, 2017 8:48 pm

Hey there canso07. That looks very good for a first time fabric hinge. Much better than mine was. If I was able to have mine look like that I would have stayed with them. Ever since, I have went to sewn hinges. What did you use for both material and to stick the material down with? Thank you.
avatar
NEW222
Platinum Member
Platinum Member

Posts : 1103
Join date : 2011-08-13
Age : 39
Location : oakbank, mb

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  Canso07 on Sun Feb 26, 2017 9:13 pm

Thank you NEW22! Sometimes I surprise myself lol. The fabric came from an old Guillows kit I had that they used for hinges. It's woven and looks like a polyester I think? The name of the glue is Ambriod it's reddish in color, medium drying time, little thick but soaks in nice. I use it for all my construction. It's strong.

Canso.
avatar
Canso07
Bronze Member
Bronze Member

Posts : 49
Join date : 2016-12-12
Age : 36
Location : Calgary, Canada

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  Canso07 on Mon Feb 27, 2017 10:46 pm

Hello circle flyers,
Tonight bent up the landing gear, turned out decent.  First time I bent it through the fuselage as one piece on a profile model. Installed nice light weight wheels only weighing 2.20 grams for both . Next is tail skid then main wing.

Canso.


avatar
Canso07
Bronze Member
Bronze Member

Posts : 49
Join date : 2016-12-12
Age : 36
Location : Calgary, Canada

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  getback on Tue Feb 28, 2017 7:42 am

Yea Man the Ring is looking GOOD!! Hinges much better with less gap .
The name of the glue is Ambriod wrote:
Are you able to get this glue?? I heard it still exist but not the ole formula
Smoe of the Best i have ever used . I Love This Forum!
avatar
getback
Top Poster
Top Poster

Posts : 4272
Join date : 2013-01-18
Age : 60
Location : julian, n.c.

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  Canso07 on Tue Feb 28, 2017 8:24 am

Thanks getback, yup that's the glue I use. I've used it for years, it's great. I miss spelled it in my earlier post.

Canso.
avatar
Canso07
Bronze Member
Bronze Member

Posts : 49
Join date : 2016-12-12
Age : 36
Location : Calgary, Canada

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  Ken Cook on Tue Feb 28, 2017 4:34 pm

Unfortunately if one chooses to do a clear finish, Ambroid turns horribly darker especially with cloth hinges. Testor's fast dry is totally clear and doesn't do this. Ambroid hasn't been available for some time in these parts or online for that matter. I have since switched officially to Sig-Ment. I do like Ambroid and grew up using it. It has great sandability. Doping on hinges also works very well provided you have sufficient coats on the flats.
avatar
Ken Cook
Diamond Member
Diamond Member

Posts : 2819
Join date : 2012-03-27
Location : pennsylvania

View user profile

Back to top Go down

Re: Baby Ringmaster build

Post  Sponsored content


Sponsored content


Back to top Go down

Page 1 of 2 1, 2  Next

View previous topic View next topic Back to top

- Similar topics

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