The "Camel" fighter was indeed outdated equipment for Shire. At this moment, his aircraft engine had reached 180 horsepower, while the engine installed on the "Camel" was only 150 horsepower.
In this regard, the Germans were ahead, their engines also had 180 horsepower and reached this power output long before Shire did.
The difference was that the Germans installed the most advanced engines on Zeppelin airships to enhance their speed and redeploy them onto the battlefield.
(Note: The Germans stubbornly believed that airships could bring victory to Germany, despite the emergence of rockets and incendiary bullets capable of destroying them. However, German airships persisted until 1918, and the last one destroyed was equipped with a 200-horsepower engine.)
...
The night had fallen over London, the hazy lights swaying gracefully over the Thames River, with a cool evening breeze gently brushing the treetops, bringing an almost imperceptible moisture to the air.