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View Full Version : Discussion Is 60" "giant"? Guess no...?


JWilliams2
Apr 30, 2007, 10:28 PM
What wingspan or weight would you start considering something as giant?

Also, this is a great place to ask: I am going to be building a 60" or maybe bigger foam "cub" type plane entirely for lifting a camera. Since I'm now using the cheap blue foam, I was thinking about going even bigger. I don't think I even need 60", but bigger sounds fun. I have a 80-90 gram motor that can produce about 1200 grams of thrust and the plane with camera will weigh less than 3 lbs, I believe. If I can get 3 lbs of thrust, I'm sure a 4-5 lb plane would be fine, but what do I need to watch out for when going so big? I'm basically taking plans for a 52" plane and expanding them and will put a few more carbon rods in here or there.

Thx!

Larry3215
May 01, 2007, 04:40 AM
http://www.rcgroups.com/forums/showthread.php?t=652200

Looooong discussion there :)

Larry

tone
May 01, 2007, 04:37 PM
Bipes at 60 inch span are IMAA legal so they are certainly certified as "Giant"...
A Banchee for instance, at 52" span would not be considered Giant by almost anyone i would guess.
I am building a SIG Kadet Sr. for carrying a camera.
It is 80 inches in span and so just barely qualifies for IMAA fly-ins..

At 60 inches or so, your Cub would likely be considered a Sport Flyer.
Sounds like a fun project. You just gotta love the Cubbies. :)

TimOBrien
May 01, 2007, 07:09 PM
Technically, any true 1/4 scale model of a real plane used to qualify....

Many many years ago, Ken Willard built an R/C scale of the BumblebeeII, the world's smallest biplane with a wingspan of little more than >>8 FEET<<, so the model was only 2ft in span.

....the original supposedly scared the full-scale pilot pretty bad....

JWilliams2
May 01, 2007, 08:18 PM
Technically, any true 1/4 scale model of a real plane used to qualify....

Many many years ago, Ken Willard built an R/C scale of the BumblebeeII, the world's smallest biplane with a wingspan of little more than >>8 FEET<<, so the model was only 2ft in span.

....the original supposedly scared the full-scale pilot pretty bad....My God, that thing is small!!

SpleenRippa
May 01, 2007, 10:52 PM
http://www.aviationtrivia.homestead.com/BumbleBeeII.html
:-)

LSSS
Dec 02, 2007, 10:55 PM
Just a quick correction. The link for the Bumble Bee II is http://aviationtrivia.info/Starr-Bumble-Bee-II.php