The Ryan ST-A (ICAO type RYST) is an aircraft of United States origin. It has a maximum take-off weight of 800 kg. It offers a maximum range of 310 nm, a service ceiling of 15,500 ft and seating for up to 2 across its variants.

Ryan ST-A

RYST

Photo: kitmasterbloke · CC BY 2.0

Year

—

Owner

—

Last seen

—

MTOW

800 kg

Range

310 nm

Seats

ST-A

Ryan · ST-A

Model overview

Fleet & certification

Built: 25
Active: 25
Origin: United States

Certifying authorities

FAA

Variants

Per-variant specifications

Variant	Engine	MTOW	Range	Cruise	Pax
ST-A ST-A	—	800 kg	310 nm	—	2

Type certification

The FAA paperwork

TCDS ATC 571

OEW: 727 kg
Seats: 1 crew · 1 passengers
Fuel: 91 L

Engine

Menasco Pirate C-4 (125 hp)

Certification basis

Approved Type Certificate No. 571

Read the TCDS (PDF) →

Safety & ops history

Where to look next

Detailed safety & ops history coming soon — view this model's FAA Airworthiness Directives at FAA.gov.

Ryan ST-A market & fleet intelligence

Registry, flight-tracking and market data on the Ryan ST-A fleet — updated daily.

Fleet age

89 yearsmedian age

30s

Of the 20 registered Ryan ST-A with a known build year (80% of the 25 we track), the median age is 89 years.

ST-A — frequently asked

What is the range of the Ryan ST-A?

The Ryan ST-A has a maximum range of 310 nautical miles across variants.

How many people can the Ryan ST-A carry?

The Ryan ST-A seats up to 2 across its variants.

What is the MTOW of the Ryan ST-A?

The Ryan ST-A's maximum take-off weight is 800 kg.

What is the ICAO type designator for the Ryan ST-A?

The Ryan ST-A's ICAO type designator is RYST.

How many Ryan ST-A aircraft are registered worldwide?

Sprinkle tracks 25 registered Ryan ST-A airframes worldwide.

Registered ST-A aircraft

Individual ST-A airframes by tail number — registration history, operator and lineage.

See all 25 registered ST-A