Air show takes measures to cope with hot weather

Measures are in place to help people stay safe at an air show as temperatures are forecast to soar over the weekend.
The Duxford Summer Air Show takes place on Saturday and Sunday and about 32,000 people are expected to attend.
Cambridgeshire and the East of England are under an amber heat health alert from 19 June at 12:00 BST until 23 June at 09:00 - the second-highest warning level.
The Imperial War Museum (IWM) said emails had been sent to registered visitors warning them of the weather situation, and added free water points would be available.
Highlights of this year's show include the Battle of Britain Memorial Lancaster, Spitfire and Hurricane Flight, the C47 Dakota, RAF Falcons Display Team, and the Red Arrows on Sunday.
Entertainment is also planned at ground level, including living history groups, live music, and a range of food and drink.

Issuing its amber alert for the whole of England, the UK Health Security Agency (UKHSA) said "significant impacts" were likely for health and social care services, including increased demand.
Temperatures were predicted to reach 33C in parts of the south and east, including Cambridge.
With its wide open spaces and thousands expected at the air show, staff at the IWM said measures were in place to mitigate the effects of the hot weather.
Emails had been sent to visitors to make them aware of the forecast and urging them and to bring appropriate items including protective sun cream, hats and water.
Regular announcements will be made on the PA system to remind people to wear sunscreen and drink water and both items will be on sale at the event as well as free water points.
A spokeswoman said: "Our partners in the NHS and St John have been keeping us updated on their plans, and they are prepared for the hot weather.
"Our indoor hangars and exhibitions also provide shaded spaces throughout the site."
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