https://www.flyer.co.uk/caa-warns-of-overheating-moving-map-apps/

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The CAA has issued a warning to General Aviation pilots about the current heatwave affecting the UK causing tablets and smartphones to shut down when operating a moving map navigation app.

“Summer is with us and we’ve had reports of tablets and mobiles overheating in the cockpit and shutting down leading to a rise in airspace infringements,” said a CAA Skywise alert.

“We recommend that you have a back-up plan in place that works for you in case you lose your VFR Moving Map in flight.”

The CAA goes on to say that a backup tablet may succumb to the same problem and puts forward these suggestions:

• Be prepared to orbit/hold in your present position to assess the situation or fly the aeroplane away from controlled airspace before trying any equipment resets.
• Carry a chart that is marked-up with your route.
• Carry a printed PLOG.
• Be aware of turbulence and thermals that add to the challenges of level flight.
• Are you planning to TAKE 2? Maybe that needs to be increased when possible.

“Have your radio set to a relevant ATC frequency and call for navigational assistance if you are unsure of your exact location,” adds the CAA.