A4Flight Academy
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Two people beside an A4Flight Cirrus at the Denton hangar

About us · Denton, Texas

A4Flight.
Built by people who fly.

A flight school. A flying club. A better way to spend time in the sky. Business class for personal aviation starts here.

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Why we built A4Flight

The school and club
we wanted to fly with.

We wanted modern aircraft, a place to meet and flying that fits real life. So we built it at Denton Enterprise Airport.

Learn with an instructor. Come back to flying. Or join as a certificated pilot and make the fleet part of your life. Different paths, the same love of aviation.

Two people enjoying a flight together, wearing headsets in the cockpit
The airplanes bring us here. The people make it A4Flight.

Modern aircraft

Cirrus SR20-G2s and a Jabiru J170. Aircraft you'll look forward to flying.

Built around you

Your goals. Your calendar. No factory syllabus.

A proper home base

A private office and lounge at Sheltair, with the aircraft right here at KDTO.

Our journey

How we got here.

Snake-infested hangar. Old, crappy airplanes. Enough was enough. We built the school we wanted.From our first aircraft to the club we fly with today. The story is ours, and so are the photographs.

Our full story in pictures

Chapter 01

Where it started

Round gauges. Well-worn rentals. A route plan propped against the windshield and a hangar the snakes got to first. We flew them anyway — then one morning we said enough.

Round gauges, app on the yoke
Over Texas lakes
Well-used trainers
The Cherokee days
Steam gauges, good times
Route planning, early style
Rentals and more rentals
Six-pack instruments
Hangar days

Chapter 02

The first one with our name on it

Then we stopped renting and started owning. Stick and rudder, a Jabiru with our name on it, and the first time the airplane was actually ours.

N779J, the club's first Jabiru
New hangar mate
Hangar life
The fleet grows
Thumbs up
Two up front
Ready to go
Glass panels early on
Flying the glass

Chapter 03

The Cirrus era

Glass panels. Autopilots. Real cross-country range. The Cirrus SR20s changed what an ordinary Tuesday could look like.

N94RS arrives
Doors open, sun out
Sunset on the ramp
Evening light

Chapter 04

Cross-countries and glass

Once the glass was in, we started going further — down the coast, over the water, panels full of numbers and the engine watched every mile.

On final
Over the water
In cruise
Watching the engine

Chapter 05

The people

The airplanes are the easy part to photograph. Ask members what they actually remember and it isn't the aircraft — it's the people standing next to them.

Sunshine and Cirrus
The team takes shape
Good days at the airport
The left seat never gets old
Golden hour

Chapter 06

Today

Two Cirrus SR20s, a Jabiru J170, hangar space at Denton Enterprise, and a portal that runs the whole operation — booking, dispatch, billing, training. Some of us still plan on paper.

The whole club, online
Still planning on paper sometimes
Modern cockpit, modern tools

This is where the story gets good — the next chapters get written by members.

From our flights

This is what we come here for.

Our aircraft. Our flying. A few moments from the ramp to the runway.

Cirrus N94RS on the ramp with the Denton control tower behind it
N94RS, at home in Denton.
Pilot at the controls of a Cirrus with the glass cockpit and landscape in view
A different perspective from the cockpit.
Cirrus wing above a layer of clouds, photographed through the cabin window
A view worth coming back for.

From the front seat

The runway comes into view.

An approach, filmed from the cockpit of our Cirrus N36PL.

On approach · N36PL

The people behind A4Flight

Real people. Right here at Denton.

Leadership, instruction and maintenance. Meet the people keeping the club moving.

Charlie Alsmiller

Charlie Alsmiller

Managing Partner

Forbes Technology Council | MBA

Meet Charlie

Charlie brings decades of executive leadership and entrepreneurship experience to A4. As CEO of multiple successful technology companies and a Forbes Technology Council member, he applies his business acumen to making aviation accessible and sustainable.

Pierson Roth

Pierson Roth

Director of Operations, DFW

CFI, CFII, MEI | Commercial Pilot

Meet Pierson

Pierson is a dedicated aviation professional with extensive flight training experience. As a Certified Flight Instructor with Instrument and Multi-Engine ratings, he is committed to developing safe, skilled pilots and providing exceptional training experiences.

Austin Allen

Austin Allen

Certified Flight Instructor (CFI)

CFI, CFII | Commercial Pilot, Single-Engine Land

Meet Austin

Austin holds his CFI and CFI-I along with a Commercial Single-Engine Land certificate. Flying wasn't on his radar growing up — he spent the better part of eight years in the trades before making the jump to aviation and moving to Texas. He always watched the sky, tracking CAL FIRE aircraft in and out of their Sacramento base, and after a discovery flight in Auburn he knew he was in the wrong profession. With a wife willing to move 1,500 miles so he could chase the passion, he settled in Texas and now works to give every student an aviation experience that is fulfilling and rewarding.

Jeremy Ward

Jeremy Ward

Head of Maintenance

Owner, Aero Bear Aviation LLC | 25+ years in aircraft maintenance & quality

Meet Jeremy

Jeremy leads maintenance for the A4 fleet and brings more than 25 years of hands-on aviation experience. He started as a lead mechanic at Air Desert Pacific in California, then worked as a mechanic and inspector at Broadie's Aircraft and US Aviation Group in the Fort Worth–Denton area. He went on to serve as a Senior Inspector at Aviall, a Boeing company, and spent over a decade at Aviation Technical Services as Quality Assurance Manager and Quality Manager for Components. He later led quality work at Aerospace Quality Research and Development and Airline Component Parts. Since 2023 he has owned Aero Bear Aviation in Denton, bringing airline-level inspection standards and careful record-keeping to every airplane we fly.

Our advisors and directors

Advisory board

Ken Devero

Ken Devero

Advisor

20+ years in Marine Corps aviation, with a background in law enforcement.

Bryan Cornelius

Bryan Cornelius

Founder, Focus Real Estate Advisors

26 years of DFW real estate brokerage, site selection and market strategy.

Tracy Glover

Tracy Glover

Managing Partner, ASCENT RE Services Partners

Three decades of real estate investment across Texas and Florida.

Scott Baird

Scott Baird

Retired Captain, American Airlines

40+ years flying the Boeing 777 and 787 on international routes.

Board of directors

Charlie Alsmiller

Charlie Alsmiller

Chairman

Forbes Technology Council | MBA

Meet Charlie

Charlie brings decades of executive leadership and entrepreneurship experience to A4. As CEO of multiple successful technology companies and a Forbes Technology Council member, he applies his business acumen to making aviation accessible and sustainable.

Mary J Alsmiller

Mary J Alsmiller

Director

CPA | Baylor University

Meet Mary

Mary brings extensive financial expertise with a background in IT audit and security at Coopers & Lybrand (now PwC) and banking. A Certified Public Accountant with degrees from Baylor University and UT Dallas, she ensures rigorous financial oversight and compliance across all operations.

Our home base

Welcome to our space at Sheltair.

A place to brief, catch up and talk about the next flight.

The A4Flight logo wall and chairs in our private office loungeA4Flight briefing room with tables set for a lesson
Looking down the A4Flight briefing table toward the flight board, with chairs set for a lesson.The A4Flight flight board on the briefing room wall, showing radar, weather and the day's schedule at Denton Enterprise Airport.A quiet corner of the A4Flight office with a leather chair and aviation prints on the wall.

Find us

Denton Enterprise Airport.

Sheltair FBO · KDTO
5035 Warbird Drive
Denton, TX 76207

Good company on the ground, too

Our partners.

Sheltair is our home at KDTO. Aero Bear Aviation keeps our aircraft airworthy on the field. The people around the operation matter just as much as the aircraft.

Meet our partners

Come meet us. Better yet, come fly.

Your first Cirrus flight is a good place to start.

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