About Us

At Bay 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. BCF 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 Bay Area location offers a great variety of conditions and geography. We are within a short flight to both beachside and 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 at our sister location in Long Beach. Our commitment to safety and our strict, unwavering maintenance policy exceed FAA regulatory requirements.

  • Shane Sentz
  • John Ewing
  • Eliot Floersch
  • Pamela McCarthy
  • Briano Santos

Shane Sentz

Gold Seal CFI, CFII, MEI, CE510S

Every day as Director of Operations at Bay City Flyers brings variety and momentum. One day I’ll help a client purchase a new Diamond aircraft, the next I’ll fly a Mustang to Europe and back, and the day after that I’ll turn my attention to the physical plant at Hayward. Flying with my dad in his old Piper sparked my love of flying at an early age. After I earned a finance degree from Santa Clara University and did a stint in Silicon Valley, I changed gears and headed to flight school. I’ve been teaching in the Bay Area for 18 years now. In creating a great flight school at Bay City Flyers, I’ve pulled from all my experience in the industry to build a one-stop shop, where you can go from a private pilot to a jet pilot and have fun at the same time.

In my spare time, I’m all about my wife (also a pilot) and kids.

John Ewing

Gold Seal CFI, CFII, MEI, ATP, CE510S

I started flying at age 13 and have been a full-time, professional flight instructor since 2001. I have part 135 freight flying experience and instructional experience in a variety of single- and multiengine aircraft. I have logged nearly 9,000 hours of flight time, have written articles for IFR Magazine, and am the author of the Concise Guide to IFR, Concise Guide to the Diamond DA40-180Concise Guide to the Diamond DA42, and Concise Guide to the Citation Mustang. I am also an avid bicyclist.

Eliot Floersch

Gold Seal CFI, CFII, MEI

I have been flying in the Bay Area since 1991. I have been a CFI since 1998 and turboprop instructor since 2002. I have 10,000 hrs dual given and over 1,500 hours teaching in multi-engine aircraft. I began teaching in the DA42 in 2006. My Aviation-Flight Operations degree from San Jose State University and my experience as a CFI have both prepared me well for teaching safety seminars in advanced avionics, mountain flying, advanced instrument procedures and scenarios, WAAS/LPV approach capabilities, night flight operations, and high-altitude training. I have extensive flight experience in crosswind and slip training, emergency procedures, mountain flying, high-altitude training, advanced IFR, and engine management.

I prefer teaching in glass cockpit airplanes, because I find that they offer a significantly heightened situational awareness, safety features, and redundant systems and instruments. Aside from simply loving to fly, passing well-received knowledge to students makes any CFI feel immortalized and that is one of the finest sensations life has to offer.

Pamela McCarthy


I was exposed to aviation at an early age through my dad, who was a B52 captain in the Air Force. I've been an active flight instructor for 16 years and have over 4,000 hours of dual given. I'm also typed in the CE-560XL and CE-500. I hold a Gold Seal on my flight instructor rating, and love sharing the challenges of flying with clients and helping pilots develop their skills.

Experience in corporate and charter operations has helped me develop a better understanding of working within the ATC system.

As Chief Pilot on a Citation 550 for a private owner, I handled all the maintenance and required inspections. In addition, I'm a proud owner of a Cessna 140—I have a good understanding of the maintenance side of aviation from vintage aircraft to small jets.

When I’m not in the air, you'll find me waterskiing at Lake Don Pedro or biking the Woodside hills.

Briano Santos


Like many individuals that I’ve come across during my career, I fell in love with aviation at an early age. I took my first lesson when I was 15 right here at Hayward airport. In 2005, while serving in the Air Force as an aircraft mechanic and at Southwest airlines as a ramp agent, I accomplished my goal of becoming a private pilot and eventually began instructing in 2008. For a three-year period, I stepped out of the flight instructing world and into the aerial mapping world where I flew some of the best-equipped TAA all over the U.S. and Canada. After realizing that I prefer general aviation over commercial aviation, I returned to instructing. I love introducing people to the world of general aviation and shaping a safety-minded approach in all that they do. I am now primed and ready to pass the knowledge, skills and best practices that I’ve learned over the years to you. 

Welcome to professionalism. Welcome to experienced instruction. Welcome to Bay City Flyers. Let’s go preflight!