About Us

At Angel City Flyers we are committed first, foremost and always to safety. We provide a highly structured, disciplined approach to flight training. Our emphasis on training standardization, standard operating procedures and single pilot resource management produces pilots ready for real-world, commercial and private operation. Our commitment to customer service and pilot proficiency earned us the designation as the Diamond Aircraft factory training center for the southwest United States, and one of only two Diamond Brilliance Centers in the country.

We believe that flight training made enjoyable is flight training made effective.  ACF instructors are with us because they enjoy their profession, are committed to safety and strive to be the best at what they do.

We chose Diamond Aircraft for their proven performance, reliability and safety. Diamond’s integration of glass cockpit technology, composite construction and turbo diesel engines places them at the leading edge of technological advances in general aviation.

Our Long Beach, California location offers the greatest variety of conditions, geography, convenience and instrument training facilities in the U.S. Beachside airports are within a short flight of ski resort airports, and California has both the highest and lowest points in the lower 48 states.

We maintain our aircraft to the highest standards through the Diamond Factory Maintenance Facility in Long Beach. Our commitment to safety and our strict, unwavering maintenance policy exceed FAA regulatory requirements.

  • Seosamh Somers
  • Ciara
  • Karl Lewis
  • Karlie Isenhower
  • Lindsay Kast
  • Maureen Cavin

Seosamh Somers


ATP, CFI, CFII, MEI, Honors Degree Aerospace Engineering

In Ireland, the cheapest way to get a ride in an airplane is to promise to parachute out of the plane halfway through the flight. And so began the soaring saga of Seosamh Somers, the shilling-starved space student from…somewhere in Ireland.

Although Seosamh (pronounced SHOW-SEFF—obviously), graduated with honors in aerospace engineering from the University of Hertfordshire, he soon decided that he would rather fly planes than design them. Armed with the goal of bringing to general aviation the same professional approach, attention to detail and technological resources generally reserved only for space flight, Seosamh founded Angel City Flyers in 2003.

Seosamh holds both European and U.S. professional pilot and instructor certificates with over 8,000 hours of flight experience. When he is out of the office, he flies a Citation jet for short overland flights and small piston engine airplanes for the long transoceanic crossings (go figure)! Be warned, he is quite proud of his phonetically impossible name.


Ciara was born on a St. Patrick’s Day. She began at Angel City Flyers when she realized she wanted a career in aviation just like her idol, Snoopy. Since she came to the office that day she has reigned supreme. As official company mascot, she receives a generous compensation package of unlimited affection and abundant hugs and pats.  Her responsibilities include teaching us all about loyalty, dependability, and the importance of jumping for joy. 

Karl Lewis

Karl Lewis “retired” from his 30+ year career in the banking and financial services industry for approximately 15 minutes before he joined Aero City Group as Director responsible for both Angel City Flyers and Bay City Flyers. Long known to us as someone who doesn’t spend any time sitting around, Karl completed his private pilot and instrument training at ACF in 2016.

But his zeal for aviation dates back to his teenage years when he took an initial demo ride in a Piper Cherokee 140, an experience that stirred a lifelong passion for flying. Concentrating on career and family led to a gap between Karl’s early days of flying “old beat-up Cessna 150s” and working as an aircraft refueler and dispatcher at Fullerton Airport, and the time he sought out ACF to resume flight training.

The culture of safety drew him to the company, Karl says. “I wanted to fly the airplane that had the safest record in the industry, and my research showed that Diamond has one of the best in general aviation.”

As Director of both ACF and BCF, Karl combines his enthusiasm for flying and his business skills to manage day-to-day operations and provide strategic direction. His years as an IT professional in the financial world serve him well in understanding the technologically advanced aircraft in both locations, he says.

Also a runner and an equestrian, Karl enjoys spending time with his wife, daughters, and 2-year-old grandson.

Karlie Isenhower

Karlie Isenhower worked at an administrative desk job at a Santa Barbara flight school when she started “flying a little bit.” From the first exploratory flight lesson, the profession “really clicked,” she says. She went on to receive her private pilot certificate and CFI in short order, a shift from her earlier occupational path in art and photography, but a continuation of a family career tradition—her father is a pilot for Alaska Airlines.

“I like hands-on things,” she explains, having grown up in Palm Springs where she rode horses, played soccer, and was on the cheerleading team. Flight instruction gives her the opportunity to teach skills students may initially find difficult, but who become proficient with her help. “It’s nice when they get the concepts,” she says.

In her free time, Karlie likes hanging out with her friends, hiking, camping at Dana Point or in Big Bear, and watching documentaries and horror movies. Why horror? “I like to be on my toes.”

Lindsay Kast

Lindsay is the Business Development Manager for Aero City Group. A native of Tell City, Indiana, Lindsay graduated from Indiana University with a dual degree in business management, specialized in marketing, and public and environmental affairs and a Division 1 National Champion title for cheerleading. Her vibrant background raises team spirit all around. She is also a talented graphic designer, and ACF has come to rely on her keen eye to keep our look updated.

It’s easy to belong at ACF, Lindsay says, because with students and clients coming and going from all over the world, “everyone is from out of town in one way or another.”

When she isn’t in the midst of the brisk pace at ACF, Lindsay enjoys hiking with her fur child and “forever sidekick,” Merlin. She has a newcomer’s appreciation for Southern California’s superb hiking trails and beaches, not to mention the regular availability of fresh seafood and great burritos.

Lindsay brings a bright outlook and optimistic spirit to her role at ACG and all of its subsidiaries.

Maureen Cavin

Maureen Cavin came to ACF with a broad background in city government, education, and public relations. As weekend safety/dispatch administrator, she ensures that everything is organized and ready to go for our Saturday-Sunday clients.

The breadth and diversity of Angel City Flyers clients intrigues Maureen. “Everybody has a story to tell and everyone is so interesting,” she says. From her early days as beauty queen, a role she says “catapulted a shy person into public speaking and meeting with prominent leaders,” to her present-day responsibilities at ACF, Maureen’s graciousness and good humor have stood her in good stead throughout her varied career.

The four F’s are important to Maureen: faith, family, friends, and fun. “To me faith means trusting in life, and believing that you’re in the right place at the right time and doing what you’re supposed to be doing,” she says. She enjoys reading history and biographies, spending time with her wide circle of friends and her three children, and playing with her three dogs.