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View Full Version : Discussion Does a 20% Pitts S1C count as large ?


RJPIoW
Feb 17, 2009, 01:46 PM
Im building a composite foam/liteply/balsa Pitts S1C designed specifically to be electric and 3D capable, yet light enough to cruise around. Foam core wings with carbon spars and 3mm depron skin for a quick build.

Do I need to wait to make another larger scaled version to count as a large plane ?

Wing span 50.9 ins
Wing area 7.8 sq ft
Wing loading 10.7 ozs/ft2
Powered by a Turnigy TR50-55A-400kv running from 4 2200 3Cells to give 22.2v

15x7 APC E 51.5A 1074W 8115rpm 4543 gm thrust
204 W/lb

Richard

Lynxman
Feb 17, 2009, 03:11 PM
The IMAA criteria, which is normally used to determint if a model is giant scale or not, are:

-Minimum 80" wingspan for monoplanes.
-Minimum 60" wingspan for multi-wing planes.
-Quarter scale or larger are accepted no matter the size.

20% scale makes it 1/5 scale, so it's too small to be categorized as giant scale. Not that there's anything wrong with that. :)

BingWing
Feb 24, 2009, 01:12 AM
Would think 20% would be around 60`+ ? Might be wrong but sounds a great project....just love the pitts. Building a 33% GP pitts with a hacker !

Tonystott
Feb 24, 2009, 06:45 AM
The full size is surprisingly small....