Soon after joining No. 57 Squadron, he was transferred to
No. 617 Squadron, specially formed for the purpose of carrying out
Operation Chastise, the raid to attack German dams in the
Ruhr Valley. Young, together with Henry Maudslay, carried out much of the organising work needed to form a new squadron but remained popular with his fellow officers. On the night of the 16/17 May 1943, the raid took place. Young flew Avro Lancaster
ED877 /
AJ-A (code-named
"A-Apple"). The other crew were
Flight Sergeant Charles Walpole Roberts (Navigator),
Flying Officer Vincent Sandford MacCausland
(Bomb Aimer),
Sergeant David Taylor Horsfall (Flight Engineer), Sergeant Lawrence William Nichols (Wireless Operator), Sergeant Gordon Arthur Yeo (
Front Gunner) and Sergeant Wilfred Ibbotson (Rear Gunner).
A-Apple flew as part of the first wave which attacked the
Möhne Dam. Young was
second in command of the raid, which was led by Wing Commander
Guy Gibson flying
G-George. The first three aircraft to attack, Gibson (
G-George), Hopgood (
M-Mother) and
Martin (
P-Popsie), all missed the target.
A-Apple was fourth to attack and hit the dam, causing a small breach. As this breach was not apparent, a fifth aircraft of
Maltby (
J-Johnny) subsequently attacked the dam and achieved a hit, causing a larger breach. On the return journey,
A-Apple was brought down by anti-aircraft fire, probably by gunners at
Castricum-aan-Zee, who reported shooting down an aircraft at 2.58 am. The bodies of all seven crewmen washed up on the Dutch coast over the subsequent days and were buried in the Bergen General Cemetery,
Bergen, North Holland. ==Personal life==