 Another solution to the high @-@ speed problem is the delta wing . The delta wing had many of the same advantages of the swept wing in terms of transonic and supersonic performance , but offered much more internal room and overall surface area . This provided more room for fuel , an important consideration given the inefficient early jet engines of the era , and the large wing area provided ample lift at high altitudes . The delta wing also enabled slower landings than swept wings in certain conditions . The disadvantages of the design were increased drag at lower speeds and altitudes , and especially higher drag while maneuvering . For the interceptor role these were minor concerns , as the aircraft would be spending most of its time flying in straight lines at high altitudes and speeds , mitigating these disadvantages . 
