622 - there you go:
https://www.abct.org.uk/airfields/ai...der/broadwell/
Wikipedia quotes:
No. 512 Squadron and
No. 575 Squadron were based here, flying the
Douglas Dakota.
In February 1944, No. 512 Squadron was transferred to No. 46 Group at RAF Broadwell. It was a tactical Dakota squadron and started training glider towing and parachute dropping. Its first operation in the new role was a leaflet drop on 17 April 1944 over France; this was followed by intensive flying in and out of France, including dropping parachutists at
Arnhem. In fact, 512 Squadron can claim that they were the first planes over on D Day as 3 Dakotas piloted by Fl Lt Hyde, W.O. James Proctor and a C Flight Flying Officer dropped a specialist team at 00.02 on 6 June to try and disrupt the Merville Battery before the main assault.
Broadwell took part in the
D-Day assaults alongside nearby
RAF Down Ampney and
RAF Blakehill Farm. On the eve of D-Day, No. 575 Squadron dropped
5 Para into the invasion drop zone. On 6 June, it towed 21
Horsa gliders into France. In the next few weeks it started a casualty evacuation service from France back to England. In September 1944, it was involved in operations at Arnhem where the squadron suffered severe casualties.
The airfield continued to be a terminus for long-range transport operations to Europe, the Middle East and India.
The following units were here at some point:
[1]