The Exeter-based Devon Air Ambulance service is looking to extend it service into the night.
At the moment the service, which runs two air ambulances, does not respond to incidents after dark, mostly due to cost but also to operating restrictions, it is not.
Now, the charity which funds the service, which operates out of Exeter Airport, has set a target to extend flying hours to 10pm all year around from 2016, with a further extension to midnight from 2017.
It means they need to raise an extra £1million a year.
The newest Devon Air Ambulance, which has been in operation for almost a year, is already equipped to fly at night but will still need some additional items of equipment fitted such as extra spot lights, a wire detection system, enhanced mapping and potentially a Night Vision camera system.
Night Vision Goggles (NVG's) will also be required for the crew.
Sarah Burden for the charity said: " We will need to increase the number of aircrew so that we can operate into the night without reducing the level of our service during the daytime.
" In all, the cost of funding the new equipment, increasing our crew numbers, ensuring they are trained to the highest standard, and of course the costs associated with the helicopter flying to a greater number of incidents, will see our fundraising target rise by £1 million pounds every year.
"During the darker winter months there are only around eight hours of daylight during which currently we are able to respond to patients. This means that from about 5pm onwards our service is not able to help people.
"Therefore an important part of our plans to operate during the hours of darkness is about covering the winter rush hour and early evening when people are very much in need of our service. During the lighter summer months we extend the period we deliver our service and at present we are able to respond up to 14 hours each day.
"This extension of flying hours started in just 2011 and straightaway proved an evening service is needed as we were able to attend to more than 50 patients during the longer evenings.
Heléna Holt, Chief Executive of Devon Air Ambulance Trust said "Extending flying hours during the summer, where daylight allows, has highlighted what a difference even just a few more hours in the evening make. People don't stop getting ill or having accidents just because it gets dark."
She added "Of course extending the service has a cost implication. The first phase of our 'Help us make night time flight time' campaign is to raise awareness of our future plans and encourage supporters to find out a bit more about how and why we are doing it and how they can help us make night time flight time."
