GS-24A Series 3
Starter-Generator
Description
GS-24A Series 3 aircraft starter-generator
GS-24A Series 3, technically marked GS-24A-3S, is a six-pole DC starter-generator for an auxiliary gas-turbine installation. It combines three duties: cranking the TG-16M during APU start, supplying the aircraft DC buses after the APU reaches operating speed, and feeding the main-engine starter-generators during the approved starting cycle. The exact series suffix is part of the identification and must be checked on the nameplate and passport.
Full descriptionCollapse description
Documented TG-16M and aircraft application
The TG-16M operation manual identifies one GS-24A-3S on the installation and describes its use with AI-20 engine-start circuits. Maintenance documentation for the An-24, An-26 and An-30 families records the GS-24A generator on TG-16/TG-16M equipment. Series 3 is also documented on auxiliary power-unit installations used by other aircraft. Final effectivity must therefore be confirmed from the aircraft illustrated parts catalogue, APU modification and generator passport rather than from the family name alone.
Generator mode and onboard DC supply
In aircraft-bus operation, the documented voltage is 28.5 ± 1.5 V DC and the steady current is 600 A. The TG-16M installation limits bus-load power to 18 kW and permits continuous operation for up to 120 minutes under the stated installation conditions. Voltage regulation is performed by the RN-180 Series 2 regulator, while DMR-600T Series 2 provides network connection and reverse-current protection in the reviewed system.
Starting modes and associated equipment
For starting an AI-20 main engine, the generator output follows a controlled 20–60 V programme and reaches a steady 1000 A at 60 V within the limited cycle. When the GS-24A-3S starts the TG-16M itself, the aircraft supplies the unit through the PT-16MTV starting panel; the manual permits five consecutive engagements followed by 15 minutes of cooling. PRK-8MTV, OM-16-T, AOD-20 and SOD-1-2S are among the associated control and protection units documented in this installation.
Identification, inspection and ordering
Selection requires the complete GS-24A-3S marking, rotation, drive interface, terminal arrangement and confirmed APU/aircraft effectivity. The generator should be inspected for nameplate legibility, housing and cooling-path condition, drive-end damage, terminal integrity and evidence of preservation before bench testing. The offered unit is new and unused, manufactured in 2025, with one item available. Related catalogue positions are listed under Generators & Starter-Generators; cross-sells are navigation aids and do not imply interchangeability.
Technical details
- Product Type
- Aircraft DC starter-generator
- Catalogue Part Number
- GS-24A Series 3
- Technical Designation
- GS-24A-3S / ГС-24А-3С
- Machine Type
- Six-pole DC machine; shunt self-excited in generator operation
- Primary Functions
- TG-16M starting, aircraft DC-bus supply and main-engine starting support
All specificationsCollapse specifications
- Documented APU Context
- TG-16M auxiliary gas-turbine installation
- Documented Aircraft Context
- An-24, An-26 and An-30 maintenance context; exact Series 3 effectivity requires confirmation
- Quantity per TG-16M
- 1
- Drive Ratio
- 0.201 in the documented TG-16M installation
- Rotation
- Counter-clockwise when viewed from the shaft end
- Operating Speed
- 6,500 ± 500 rpm
- Maximum Permitted Speed
- 7,200 rpm
- Aircraft-Bus Voltage
- 28.5 ± 1.5 V DC
- Aircraft-Bus Current
- 600 A steady current
- Aircraft-Bus Power Limit
- Up to 18 kW in the documented TG-16M installation
- Continuous Bus Operation
- Up to 120 minutes under the documented installation limits
- AI-20 Starting Voltage
- 20–60 V DC according to the controlled starting programme
- AI-20 Starting Current
- 1,000 A steady current at 60 V
- Cooling Airflow
- Not less than 270 g/s (approximately 220 L/s) at sea level and +15 °C
- Cooling Inlet Pressure
- Not less than 400 mm water column
- Associated Equipment
- PT-16MTV, PRK-8MTV, RN-180 Series 2, DMR-600T Series 2, OM-16-T, AOD-20 and SOD-1-2S
- Alternative Designations
- GS-24A Series 3; GS-24A s.3; GS-24A-3S; GS24A-3S; ГС-24А серия 3; ГС-24А с.3; ГС-24А-3С
- Compatibility Check
- Confirm full suffix, APU and aircraft modification, drive, rotation, terminals and approved electrical diagram
- Documentation
- Product passport and approved TG-16M/aircraft maintenance documentation
Payment & delivery
Orders ship from our hub in Dubai. Partner stock is first transferred to Dubai, then shipped to you.
Dubai stock: 100% before dispatch. Partner stock (Remote stock) and Pre-order: 50% advance payment to start the order and 50% before shipment from Dubai to you.
Availability, lead time, delivery cost and payment terms are confirmed for your order before payment.
In-person viewing of parts held in stock at our Dubai warehouse can be arranged on request.
Payment & delivery terms