I'm pretty sure they were just a regular whip that was covered in energy, so it looked similar to a lightsaber although was different technology. I'm pretty sure they could cut off limbs (I remember reading it somewhere, either in a book or the game Empire at War.
A lightwhip would probably be capable of severing limbs from the body of a man, although my assumption that it indeed can in is based on a paragraph in an article on Wookieepedia (The behind the scenes section of the Lightwhip article).
with star wars magic and 'physics' anything is possible :D
OF COURSE, don't you know anything about SCIENCE?
Any linkara fans in the audience?
I am a (Gentle)man!
*punches Keinushi in his guts*
Owwww, what you do that for? ^_^ Also, how many gentleman hit ladies? Oh, I'm going as Doctor Insano for halloween ^_^ I'm a huge spoony fan.
I thought you were a Linkara fan, and as such assumed you knew his video containing the 'I am a Man' scene.
But anyway, good to know about lightwhips. I could see they would be less awesome than a saber though. What about lightclubs? less likely to be used, but if anyone has giant Jedi...
if you modified the emiter to spread out to a larger range there should be no issue with that. it would eat up powr at least twice as quickly as a standard blade. it would also do less damge as you would have to strengthen the shield surounding the plasma so that it reached around the tip of the saber and kept it from escaping out the end.
All this is actually just speculation. There have been people with two times as large lightsabers that have had no problems. Also no one actually rps their lightsaber running out of power in the middle of a fight, that's just a stupid idea.