RE: SIG LT-40 question
Here's the build thread that I did on a LT-40, if you have any other questions on the LT-40 kit.
[link=http://www.rcuniverse.com/forum/m_3439708/tm.htm]Pay It Forward build thread!! LT-40 build.[/link]
But the answer to your question is yes, the LT-40 has ailerons.
Hope this helps
Ken