New Government Jets Wraps are removed from a gleaming silver-and-orange, 600 M.P.H. jet airplane. The first of a trio of identical planes for the President and other top U.S. Government officials. They are called the VC 137's. Big. Powerful. Fast. Safe. Modern. Equipped with the very latest in electronics and communications. Built at a cost of $5,500.000 - Less plush than the Columbine III but that's the way the administration ordered it. The four-engine jet - which extends half the length of a football field - will be for the use of President Eisenhower on long flights and will be at the disposal of high government and military men. Jet (says "Air Force") on tarmac. Interiors: crew in cockpit; man tries out comfy chair; bathroom; sofas; man typing.