The money you raise at your Great British Sunday Lunch will help people dealing with illness or injury that has forced them to leave the service, and World War II veterans.
Here are the inspirational stories of just some of the people we support.
Former RAF Corporal Gary Pammenter left his career in the RAF to care for his son Jamie, 13, who was born with the rare muscle-wasting disease, Duchenne Muscular Dystrophy, which will also limit his life expectancy.
An avid cook, Gary and his family gathered together close friends and held their own Sunday lunch last time to support the Fund.
Gary said: "The Fund has helped us in so many ways — from providing us with a secure home to redesigning our garden and providing Jamie with a new electric wheelchair, they've been amazing — so we wanted to give something back.
"For our lunch we did roast pork with all the trimmings and it was a great way to get everyone together. People are so busy these days they don't always have time to sit down and have a Sunday lunch.
This was an excuse to get everyone round with some good food — and give back to the RAF Benevolent Fund. We wouldn't be where we are today without the Fund and Jamie wouldn't be where he is without their support."
In 2009, while serving in Afghanistan, an IED threw Duncan Slater over 30ft in the air, leaving virtually every bone in his body broken.
The only unbroken part was his right arm. Duncan spent five months in hospital, four months of which he had to lie flat to avoid paralysis. He eventually made the decision in 2010 to amputate both legs so he could walk without pain.
While getting used to his prosthetic limbs, Duncan needed financial help to extend his home and adapt the bathroom and we were there to help.
Duncan said: "Life would be very different if the RAF Benevolent Fund wasn't there for me and my family. I can't thank them enough."
Ann served with the RAF Police but in 2007, aged just 37, she was diagnosed with the debilitating condition Multiple Sclerosis.
Struggling to find suitable accommodation for her needs, Ann turned to us and we were able to provide one of our Housing Trust properties with a specially adapted kitchen and garden. Now she can cook and garden independently — things she loves doing.
With a young family, James needed a secure home — one we were able to provide through our Housing Trust.
James said: "The Fund provides a home for my family and financial assistance when times were tough.
"Their support has enabled us to concentrate on spending time together as a family as I battle my illness."
Doug, who joined the RAF when he was just 19, escaped with his life from a burning plane after it was shot down.
Seventy years ago, after returning from the war, Doug and his young family faced eviction from their home but we gave him £200 for a deposit to buy a house.
Now he's a regular visitor to our respite home, Princess Marina House.
Doug said: "In the past 65 years the Fund have helped me in all sorts of ways — they're marvellous!"
Sandra Armstrong and her husband Godfrey had been looking forward to a peaceful retirement when tragedy struck, changing their plans, and lives forever.
In 2001, Sandra’s daughter, Mandy, died suddenly, aged just 21, of an undiagnosed heart condition. Sandra and Godfrey were left to bring up Mandy’s two young children, who were aged just three months and three years old.
Since then the couple have been dedicated to raising their grandchildren, Liam and Ella.When Sandra and Godfrey’s home needed emergency roof repairs there was no extra money in their already stretched budget. Godfrey completed two years’ National Service in the RAF in the 1950s and this service to his country meant he was eligible for support from the RAF Benevolent Fund.
Sandra said: "The things we have had done we could not afford to have done ourselves, with two teenagers to bring up. I hate to think where we would be without the help of the Fund."
George Wood was only 19 years old when he joined the RAF in 1941, and two years later he had already beaten the odds by surviving to become one of his Squadron’s most experienced pilots. Just before Christmas 1943, George set out on a mission that could have been his last.
Now aged 95, George needed assistance to stay in the care home that has become his home and the RAF Benevolent Fund was able to help with a contribution to his top-up fees.