Warning: exif_read_data(2.png): File not supported in /customers/9/b/f/hawkertempest.se/httpd.www/plugins/content/jw_sigpro/jw_sigpro/includes/helper.php on line 294


On 25 March 1945 Tempest Mk.Vs from No. 486 Squadron were strafing eight Fi156s on a grass strip near Grave, Netherlands. Flying Officer William Kalka and his Tempest was hit by flak. He bailed out but fell into the River Maas, 3 miles from Grave. Despite heroic efforts of a young Dutch girl (Riet Jansen, Nijmegan) to save him Kalka drowned.. 

Kalka's Tempest SA-A (NV981) was found in 2000 and in April 2004 the aircraft was recovered by a team in the Netherlands. On 19 September 2019 a memorial was unveiled at the site where Kalka drowned. In attendance were among others Tony Masters (Commander of New Zealand, defence staff) , Kerry Gillam-O'Connorals (First Secretary at New Zealand ambassy in Haag), Mayor of Wijchen Hans Verheijen, Nicole Janssen and Margie Hopper (Riet Jansen's daughter).





Hawker Tempest Mk.V NV981

- Respectvolle onthulling herdenkingsplaquette voor verongelukte WOII piloot Wiliam Arthur Kalka en Riet Janssen



Paul Strik


Latest updates:

Latest Releases

Tempest II - An illustrated history of the Tempest Mk. II and FlyPast December 2022 added.

Read more

Tempest Mk.II MW376

On 31 August was the roll-out of MW376 which is available for viewing at the KF Centre for Excellence.

Read more

Tempest Mk.II MW758

MW758 is added to the list of survivors and is hoping to go in the airworthy direction with a 3350 up front.

Read more

Eagles of Destiny

The Eagles of Destiny mini-series covers the early years of Royal Pakistan Air Force, initially while still being ...

Read more