On 10/11 July 1944, eighty-nine aircraft were detailed for an attack on rolling stock concentrated at the marshalling yards at Milan-Lambrate.
[22] Ten Wellingtons from 40 Squadron participated in the operation. The results of the operation were good and left the target area covered in small fires. The tracks were also cut at both ends, which led to rolling stuck being trapped in the yards. Three nights later,
The target was again the rolling stock at the LAMBRATE Marshalling Yards at MILAN, now pinned in the yards as a result of the destruction of the exits in the previous raid.
[23]
Nine Wellingtons from 40 Squadron was detailed for the operation. Wellington X LN270/O piloted by Plt Off. Charalambous (162971) took off from Foggia Main at 20.20 hours. Høyer was the navigator of this aircraft. The attack was successful, but six aircraft were lost in the operation. LN270/O was one of them. Apart from Plt Off. Charalambous and Høyer, the crew of the aircraft were Fg Off. Martin, FS Shephard, and Sgt Knight. It was Høyer’s fourteenth operational mission.
The Navigator Lt KAJ HØYER (SAAF) was Danish