Model Variants (Including Prototypes)
He 343V1 - Prototype; sans bombing equipment
He 343V2 - Prototype airframe for flight and engine testing.
He 343V3 - Prototype for weapons, navigation and radio testing; armored glass cockpit; revised undercarriage.
He 343V4 - Prototype for weapons testing; bomber capability retained; third crewmember added.
He 343V5 - Prototype for high-altitude testing; flush rivet finish.
He 343V6 - Prototype for materials substitution testing (wood, plastic, steel).
He 343V7 - Prototype to be based on V3 prototype.
He 343A-1 - Bomber Variant; fitted with 2 x 20mm MG 151 cannons in rear defensive position; internal bombload of up to 3,000kg.
He 343A-2 - Reconnaissance Variant; fitted with 2 x Rb 75/30 cameras in bomb bay; additional fuel stores for extended operational range; 2 x 20mm MG 151 cannons in rear defensive position.
He 343A-3 - Destroyer Variant; fitted with 4 x 30mm MK 103 cannons OR 2 x 30mm MK 103 cannons with 2 x 20mm MG 151 cannons; 2 x 20mm MG 151 20mm cannons in rear-firing defensive position.
He 343B-1 - Destroyer Variant; addition of 2 x fixed rear-firing guns in aft fuselage; FHL 151Z remote controlled rear turret with 2 x 20mm MG 151 cannons; twin vertical tail fins.