The E-7 was a long range fighter derived from the E-4/N. Like that aircraft, it had the DB 601N engine, two MG-17 machine guns in the engine cowling and two MG/FF cannons in the wings. However, it also had attachments for a 300 liter drop tank, giving it a significantly extended range. The same attachments could also be used to fit a SC 250 bomb rack, allowing the E-7 to carry a single 250 kg bomb.