Excellent DH4! Is the machine the model represents notable for downing a Zeppelin or Gotha?
If I may: yes! Here's what
Wikipedia has to say:
On the evening of 5 August 1918, Cadbury again engaged Zeppelins. Earlier that afternoon, the L.70 took off from Friedrichshafen with four other airships. They headed for the east coast of England, timing their flight to arrive off the coast just after dark. The commander of L.70 was Fregattenkapitän Peter Strasser, the Führer der Luftschiffe ("Leader of Airships", the commander of all Naval airships). However, the airship squadron was spotted out at sea by the Lenman Tail lightship, which signalled their course and position to the Admiralty. Cadbury was attending a charity concert at which his wife was performing when an RAF orderly found him. Cadbury drove back to the airfield, where he was informed that three Zeppelins had been reported about 50 miles (80 km) to the north-east, and knowing there was only one aircraft available, an Airco DH.4, he grabbed his flying kit and ran for it, beating a rival pilot to the cockpit by a split-second. With Captain Robert Leckie in the rear gunner's seat, Cadbury climbed up to over 16,000 feet (4,900 m) by jettisoning his reserve fuel and some small bombs, where he saw three Zeppelins ahead and above him. He later recounted:
At 22.20 we had climbed to 16,400 feet and I attacked the Zeppelin ahead slightly to the port so as to clear any obstruction that might be suspended from the airship. It was a most fascinating sight – awe inspiring – to see this enormous Zeppelin blotting the whole sky above one. The tracers ignited the escaping gas, the flames spreading rapidly and turning the airship into a fireball in less than a minute. The L.70 dived headlong into the clouds. It was one of the most terrifying sights I have ever seen to see this huge machine hurtling down with all those crew on board.
Cadbury and Leckie and another pilot, Lieutenant Ralph Edmund Keys, then attacked and damaged another Zeppelin, which promptly turned and headed for home. The Commodore of Lowestoft recommended Cadbury for a Victoria Cross for attacking two airships 30 to 40 miles (48 to 64 km) out to sea in a landplane in such bad weather. All three instead received the Distinguished Flying Cross. Cadbury wrote to his father the next day: "You will have heard probably before this reaches you that my lucky star has again been in the ascendant, and that another Zeppelin has gone to destruction, sent there by a perfectly peaceful live-and-let-live citizen, who has no lust for blood or fearful war spirit in his veins."