The C.H.B which is included the airshow groups in the school of mechanical and aerospace engineering, S.N.U
The History of C.H.B
  C.H.B has short history in comparison with the other airshow groups. With help of the guidance profession, Lee Soo-Kap (The profession of the school of mechanical and aerospace engineering, S.N.U. ), the C.H.B started formally on 11 / 11 / 1999 in a Korean style food house. The first president was Mr.Pack. Since the birth of the C,H,B, there were the differences. First, the C.H.B had the great group room. Second, we accepted the good 00Çйø without the experience of airshow, and we successed in the '2000 airshow. Now, C.H.B has our group color and we effort to fill up the short history.
   
The Feature of C.H.B
  The first is the familiar mood. The relation between senior and junior is very familiar and the same period classmates are friendly, help each toher in studies and compete with each other in good intentions. For the members have strong intention sprite, if the school term starts, the member play individually but with some C.H.B proposal all members effort. The second is the good group room. With the help of the prof. Lee, C.H.B has clean and the largest room of all S.N.U group rooms. So our C.H.B love our room. Additioally, the room is located near the 301 dong and is useful in free time in school. Also the basketball court near our room is good to strenghen the member. The last is the short history. This is a weak point in some way, but may be a merit. It is such as a white and clean sketchbook. For the some years, the member will color the C.H.B of one's free will.
   
The Aim of C.H.B
  The airshow groups have the propertis each other and intent differently. C.H.B has the proposal of study and embodies of helicopter. The cause that our members are interest in the Helicopter is the attractiveness of Helicopter. The helicopter don't need a runway for the helicopter can take off and land perpendicularly. So the helicopter is used in bad topography (small runway) and has possibility that the helicopter will be the chief vehicle in futuer. Also for there are the difficulty that we analysis the aerodynamics around the rotor-blade and etc, it is attractive. The C.H.B work of '2000 airshow, the Tilting wing has the good propertys of fixed wing and rotay wing. In the future on the base of studying helicopter, we will embody the good rotary wing.