World Models 1/3 Super Cub
07-22-2010, 12:30 AM
#329
Join Date: May 2006
Location: Lacombe,
AB, CANADA
Posts: 244
Likes: 0
Received 0 Likes
on
0 Posts
RE: World Models 1/3 Super Cub
Finally got mine ready to fly, hopefully next week will be the maiden. I was hoping to minimize the cowl cutting but the dam mufflers extended too far forward to not cut the cowl.... a normal cub cowl and I would have been ok...
I installed a 3W-78ib2, hopefully it will be enough.
I installed a 3W-78ib2, hopefully it will be enough.
07-22-2010, 05:50 AM
#330
Member
Join Date: Nov 2006
Location: HOWELL,
MI
Posts: 61
Likes: 0
Received 0 Likes
on
0 Posts
RE: World Models 1/3 Super Cub
I put a 3w 106 in my clipped wing cub and cut just what I needed to fit in cowl and the motor overheated and lost the intake seal. You may want to check with others, but I think you do not have enough exit air opening around the exhaust tube area. Just a thought to check into. Enjoy the cub and you will like the motor. My 106 is excessive and I think your 78 will be fine.
07-22-2010, 09:40 AM
#332
Join Date: May 2006
Location: Lacombe,
AB, CANADA
Posts: 244
Likes: 0
Received 0 Likes
on
0 Posts
RE: World Models 1/3 Super Cub
ORIGINAL: glowplug50
Rule of thumb has always been twice as much area going out as is going in for good cooling.
Rule of thumb has always been twice as much area going out as is going in for good cooling.
07-22-2010, 01:00 PM
#333
Senior Member
Join Date: Feb 2006
Location: Houston, TX
Posts: 187
Likes: 0
Received 0 Likes
on
0 Posts
RE: World Models 1/3 Super Cub
I guess the real question is "how much going in is suficient?'. Hard to determine I imagine but as much as possible without destroying the looks of the aircraft (when possible).
07-22-2010, 09:47 PM
#334
Join Date: May 2006
Location: Lacombe,
AB, CANADA
Posts: 244
Likes: 0
Received 0 Likes
on
0 Posts
RE: World Models 1/3 Super Cub
Another option is to better use your inlet air by baffling to ensure the air flows over the cylinders, I might do this yet as it would be simple to fiberglass some baffles in the cowl.
10-26-2010, 02:57 PM
#337
My Feedback: (12)
Join Date: Dec 2001
Location: Jacksonville,
IL
Posts: 1,333
Likes: 0
Received 0 Likes
on
0 Posts
RE: World Models 1/3 Super Cub
This is the 1/3rd CUB not Super CUB with a GoPro camera mounted on it.
http://www.youtube.com/watch?v=vz0H5MgM0_8
http://www.youtube.com/watch?v=vz0H5MgM0_8
11-04-2010, 11:52 PM
#338
Join Date: May 2006
Location: Lacombe,
AB, CANADA
Posts: 244
Likes: 0
Received 0 Likes
on
0 Posts
RE: World Models 1/3 Super Cub
I finally got a chance to maiden my super cub, what a floater 
Had a slight wind down the runway and the plane lifted off in about 30 feet at under 1/2 throttle.... With flaps down I would estimate the ground speed was at 7 mph with the small head wind, aerobatics not so great but for a relaxing airplane to fly this is it....
Engine: 3W-78ib2
Prop: Mejzlik 26x8 6500 RPM
Had a slight wind down the runway and the plane lifted off in about 30 feet at under 1/2 throttle.... With flaps down I would estimate the ground speed was at 7 mph with the small head wind, aerobatics not so great but for a relaxing airplane to fly this is it....Engine: 3W-78ib2
Prop: Mejzlik 26x8 6500 RPM
11-06-2010, 03:44 PM
#340
Join Date: May 2006
Location: Lacombe,
AB, CANADA
Posts: 244
Likes: 0
Received 0 Likes
on
0 Posts
RE: World Models 1/3 Super Cub
ORIGINAL: Billy
Very nice. Are those the Bill Hempel 60% cub wheels? I like the ''bush'' look.
Thanks,
Billy
Very nice. Are those the Bill Hempel 60% cub wheels? I like the ''bush'' look.
Thanks,
Billy
I think they are smaller.... 40% but not sure..... The diamerter is 6", I bought them on Flying Giants.
11-07-2010, 02:13 PM
#342
My Feedback: (15)
Join Date: May 2004
Location: west hills,
CA
Posts: 2,794
Likes: 0
Received 0 Likes
on
0 Posts
RE: World Models 1/3 Super Cub
Hey Joe,
Airborne will have them in Jan. I have been looking all around and they are no where to be found. I have my wheels already though
It would be fun to fly them around at the basin. Easy, relaxing flyin'.....touch n goes all day
DO IT.....DO IT....................DO IT.
Billy
Airborne will have them in Jan. I have been looking all around and they are no where to be found. I have my wheels already though
It would be fun to fly them around at the basin. Easy, relaxing flyin'.....touch n goes all day
DO IT.....DO IT....................DO IT.
Billy
11-08-2010, 11:41 AM
#345
My Feedback: (15)
Join Date: May 2004
Location: west hills,
CA
Posts: 2,794
Likes: 0
Received 0 Likes
on
0 Posts
RE: World Models 1/3 Super Cub
Issac at the field has a Balsa USA one 1/3 that he is selling. Call him. I am actually going up North next Sat to pick one up from a guy.
Later Billy
Later Billy
02-20-2011, 07:32 AM
#347
Senior Member
My Feedback: (9)
Join Date: Feb 2003
Location: olympia,
WA
Posts: 212
Likes: 0
Received 0 Likes
on
0 Posts
RE: World Models 1/3 Super Cub
AllI did is add a 1/4 ply plate in the bottom for the rear struts to mount to the front goes to the factory gear location.
02-20-2011, 08:13 AM
#349
Senior Member
Join Date: Feb 2006
Location: Houston, TX
Posts: 187
Likes: 0
Received 0 Likes
on
0 Posts
RE: World Models 1/3 Super Cub
Here is an old favorite link to some vintage float instruction. http://www.seminolerc.com/EZ-Float-Design.html This is an old article from the 80's.
Chuck Cunningham was a float flying guru back then and his information still pertains. He recomends a float that is 75 to 80 % of the distance from the prop hub to the rudder line. I would recomend the 80 %. Not as pretty but much more functional. The tip of the float must project beyond the prop or you wil experience lots of bad! Anyway, it is a starting point. Just make sure to rebalance the model and keep them as light as possible. Planes with floats do not recover from spins near as well as with out them. Personal experience.
Have fun
Chuck Cunningham was a float flying guru back then and his information still pertains. He recomends a float that is 75 to 80 % of the distance from the prop hub to the rudder line. I would recomend the 80 %. Not as pretty but much more functional. The tip of the float must project beyond the prop or you wil experience lots of bad! Anyway, it is a starting point. Just make sure to rebalance the model and keep them as light as possible. Planes with floats do not recover from spins near as well as with out them. Personal experience.
Have fun
02-20-2011, 06:50 PM
#350
Senior Member
My Feedback: (9)
Join Date: Feb 2003
Location: olympia,
WA
Posts: 212
Likes: 0
Received 0 Likes
on
0 Posts
RE: World Models 1/3 Super Cub
Built my own with help of a friend. We band sawed white foam to his templates. Then I put a single layer of 6oz glass cloth on with epoxy. Filled and painted them. Built and installed in two weeks. They are only 5lbs complete. Has been a blast and always draws a crowd.
Last winter I stripped the covering, Put all the servos inside, added a light system and recovered it with Stits fabric. added a couple of pounds but it still floats like a glider.
Mark
Last winter I stripped the covering, Put all the servos inside, added a light system and recovered it with Stits fabric. added a couple of pounds but it still floats like a glider.
Mark
