The Sikorsky / PZL Mielec M28 STOL aircraft is a twin-engine high-wing cantilever monoplane of all-metal structure with twin vertical tails and rear clamshell door. Its unique design allows for quick and easy Roll-On Roll-Off (Ro-Ro) reconfiguration in support of your mission.
The M28 platform is proven in operations in extreme conditions (from arctic to maritime and tropical environments) providing high range and load capabilities, along with its ability to utilize unprepared airstrips. The M28 is valued for its mission capabilities, safety, robustness, its performance and features.Currently more than 100 M28 aircraft operate worldwide in both commercial and military configurations, supporting our customer’s wide range of missions, including the Polish Air Force’s and Navy’s M28 ‘Bryza’, a military variant of M28 dedicated to maritime surveillance roles.
As a multi role aircraft, M28 also undertakes a variety of other missions such as passenger and cargo transport, cargo drop, parachute training, border patrol and casualty evacuation. Depending on mission characteristics, M-28 can be outfitted with mixed pieces of specialist equipment, featuring both i.e. reconnaissance/passenger or passenger/cargo configurations etc.
M28 is manufactured by PZL Mielec based in Poland which is a Sikorsky Aircraft subsidiary. In 2016 Sikorsky and PZL Mielec joined the Lockheed Martin Corporation and are now integrating new mission systems and technologies such as the latest Lockheed Martin UK-developed Airborne Mission System (AMS).
AMS is a scalable and lightweight, fully integrated mission system, providing a flexible and highly capable mission system solution and allowing rapid reconfiguration of aircraft between roles. AMS is a derivative of the Tactical System in service on the UK Royal Navy Merlin Mk2 Maritime Patrol Helicopters and is free from U.S. International Traffic in Arms Regulations (ITAR) restrictions.
The powerful combination of the proven M28 aircraft and the latest mission system technology delivered by the AMS will successfully support the following mission capabilities:
- Airborne Surveillance
- Maritime Surveillance and Patrol
- Ground Surveillance
- Coastal and Overland Border Surveillance
- Search and Rescue
- Airborne Command and Control
- Special Operations Forces support
With its high-lift wing, ample power, thrust-reversing propellers, and fixed tricycle landing gear including low-pressure tires and anti-skid brakes, the M28 takes-off and lands on rough strips less than 1,000 (345 m) ft long. The mature, 1,100 shp (820 kW) Pratt &Whitney Canada PT6-65B turboprops are protected by inlet particle separators and provide responsive power with 6,000 hours operation between overhauls.
Healthy power margins make One Engine Inoperative emergencies safer even in extremely hot or icing conditions with an OEI rate of climb of 450 fpm (138 m/min) on a Standard day. The 16,500 lb. (7,500 kg) M28 hauls 5,000 lb. (2,300 kg) over 225 nm (450 km). It can cruise at speeds up to 192 kt. (356 km/h) and stalls at just 53 kt. with engines idling and flaps extended. Service altitude is up to 25,000 ft with crew oxygen. The M28 has also been certificated by EASA and the U.S. FAA for flight into known icing conditions.
As a flexible, quick-change air lifter, the basic M28 accommodates two crew and up to 19 passengers or 10 combat-equipped paratroops. The 485 cu ft (148m3) cabin has a full-width aft door to paradrop cargo, and it can be outfitted with a removable roller floor, optional cargo hoist, and heavy cargo restraints to speed loading and unloading. “One loadmaster can load and unload cargo at Forward Operating Locations,” says Mariusz Kubryn, M28 chief designer. “The cabin also lends itself to mixed missions with passenger seats and cargo rollers.”
An alternative Casualty Evacuation (CASEVAC) kit secures up to six litters and leaves room to seat seven medical staff or walking patients. An internal 553 US gal (2,090 L) internal tank can ferry fuel to remote locations or feed a spray rig for counter-narcotics operations. An optional under-fuselage container provides another 46 cu ft (14 m3) for baggage or mission equipment.
The standard M28 aircraft cockpit has a modern VFR/IFR avionics suite including VOR, GPS, and ADF navigation aids.
The M28B/PT cockpit is built around a Honeywell Bendix/King Electronic Flight Information System (EFIS) with integrated Weather Radar, Enhanced Ground Proximity Warning System (EGPWS) and Traffic Collision Advisory System (TCAS).
The M28, fitted with AMS, is well suited to search, surveillance and patrol missions which can be required to operate flights of up to eight hours duration. Either of the following two mission system configurations may be used to deliver border surveillance, protection of customs and fishery territories and country’s economic territory, environmental protection services for government and non-government agencies and relief missions after natural disasters.
Search & Rescue (SAR) and Surveillance - A configuration focused on the detection and tracking of surface objects and the recording and storage of their related sensor information and parameters. This configuration typically includes an AMS integrated with a 360-degree Active Electronically Scanned Array (AESA) radar, an Electro-Optic / Infra-Red (EO/IR) camera, an Automatic Identification System (AIS), a Direction Finder (DF), a SATCOM datalink and rescue equipment.
The high degree of sensor data integration and surveillance automation provided by the AMS allows performance of SAR missions from a single cabin workstation and the resulting benefit of additional payload capacity for additional internal fuel tanks and/or additional rescue equipment such as life-rafts, deployable SAR beacons (such as the TRON 30S beacon) and a search light (such as the Spectrolab SX·16P Nightsun).
Maritime Patrol Aircraft (MPA) – The MPA configuration extends the typical AMS configuration provided for SAR missions by the installation of additional sensors, communications equipment and operator workstations to suit specific mission needs. Example configurations include the addition of a sonobuoy launcher, acoustics suite and Magnetic Anomaly Detector (MAD) to support Anti-Submarine Warfare (ASW) missions, or Electronic Support Measures (ESM) / Communications Intelligence (COMINT) systems for electronic surveillance missions. Integration of this equipment with AMS ensures that each operator maintains full access to all mission sensor information, allowing rapid reallocation of tasking within the mission to meet emerging mission requirements.
As a multi role aircraft, M28 also undertakes a variety of other missions such as passenger and cargo transport, cargo drop, parachute training, border patrol and casualty evacuation.
Depending on mission characteristics, M-28 can be outfitted with mixed pieces of specialist equipment, featuring both i.e. reconnaissance/passenger or passenger/cargo configurations.