Entry No. 13 — the San Antonio file — filed under: aviation
L-Bird Flying Museum (Alamo Liaison Squadron)
A volunteer squadron keeps five WWII 'L-bird' liaison planes — a Stinson L-5, Aeronca L-3, Taylorcraft L-2, Piper L-4, and Interstate L-6 — in actual flying condition in a hangar at a small south-side airfield, built around Hardy Cannon's history of the unarmed spotter pilots who flew tubing-and-fabric planes over WWII battlefields armed with nothing but a pistol.
The story
While military aviation history fixates on heavy bombers and sleek fighters, the Alamo Liaison Squadron at Cannon Field preserves something far stranger: five light WWII 'L-birds' kept in actual flying condition. These aircraft—a Stinson L-5, Aeronca L-3, Taylorcraft L-2, Piper L-4, and Interstate L-6—were constructed out of steel tubing, wood, and stretched fabric. Sent over frontline battlefields as artillery spotters and reconnaissance scouts, their pilots flew low, slow, and completely unarmored, often armed with nothing more than their service pistols.
The entire museum exists through a dedicated volunteer effort centered around the history documented by Hardy Cannon and kept alive by local restorers like Bill Stratton. Situated on a 2,900-foot grass strip (airport ID 53T) on San Antonio’s rural south side, this isn't a glossy, roped-off institution. It’s an active working hangar where mechanics wrench on air-cooled engines and keep five fragile pieces of WWII history capable of taking off from the turf.
What it's like
Arriving at Cannon Field feels like pulling up to a hidden rural airpark frozen in the 1940s. You’ll step off South Loop 1604 directly into a working hangar that smells of aviation fuel, dope fabric, and vintage oil. There are no velvet ropes or interactive touchscreens here—just volunteer pilots and mechanics standing around airworthy taildraggers. Show up on open Wednesday or Saturday hangar days, walk the flight line, and ask one of the restorers to show you which plane flew spotter duty over Normandy.
The move: Show up on one of their open Wednesday or Saturday hangar days, walk the flight line of five airworthy antique taildraggers with the volunteer pilots, and ask them to point out which model flew reconnaissance at Normandy — most visitors have never heard of an 'L-bird' before walking in.
- 📍 South San Antonio / Cannon Field
- 💸 $
- ⚡ Up for anything
- 🌗 Indoors
Where: 2352 S Loop 1604 W, San Antonio, TX 78264
Hours: Added 2026-07-20 — confirm current hours before you go.
⚠ Seasonal or scheduled — always check before you go.
Pair it with
- Donkey Lady Bridge — Drive two miles down the south-side backroads after the hangar to visit San Antonio's most infamous nocturnal haunt.
- Lona China Cemetery (the 'Chinese Graveyard') — Continue a tour of obscure rural south-side history at this secluded family burial ground six miles away.
- The Ghost Tracks — Head ten minutes north to test the famous local urban legend where un-bracketed cars supposedly roll uphill over railway tracks.
Good to know
What exactly is an 'L-bird'?
The 'L' stands for Liaison. These were light, fabric-and-tubing civilian aircraft modified for WWII frontline duty—artillery spotting, field transport, and visual reconnaissance.
Are the planes at Cannon Field still able to fly?
Yes, all five WWII liaison planes in the squadron's core fleet are kept in fully airworthy condition.
What kind of runway do they use?
Operations run out of Cannon Field (53T), an unpaved 2,900-foot grass strip on San Antonio's south side.
Plan a visit & invite your people →
Further reading: Atlas Obscura · als-cannonfield.com · aopa.org
last checked: 2026-07-20