This document provides information about the fuel system of the Sukhoi SU-30 MKI aircraft. It discusses that the purpose of the aircraft fuel system is to store and deliver clean fuel to the engine under various flight conditions. The SU-30 MKI has 6 fuel tanks with a total capacity of 1200kg, including a main tank of 600kg capacity. It then describes the major components of the fuel system, including the fuel flow and metering system, fuel quantity transmitters, fuel flow transmitters, fuel quantity unit, fueling control panel, electronic transducer unit, and semiconductor relay control unit. The cockpit has multi-function displays that can withstand high and low temperatures and impacts.

1. HAL, ACCESSORIES DIVISION, LUCKNOW
SUMMER TRAINING REPORT
on
SUKHOI SU-30 MKI-FUEL SYSTEM
MADE BY:
ANKIT PRATAP SINGH
(Roll no-1112240029)
SRMCEM LUCKNOW
(ME- 4th YEAR)

2. ABOUT HAL
HAL came into existence on 1st October 1964.
The Company was formed by the merger of Hindustan Aircraft
Limited with Aeronautics India Limited and Aircraft
Manufacturing Depot, Kanpur. The Company traces its roots
to the pioneering efforts of an industrialist with extraordinary
vision, the late Seth Walchand Hirachand, who set up
Hindustan Aircraft Limited at Bangalore in association with
the erstwhile princely State of Mysore in December1940.

3. The Government of India became a share holder in
March 1941 and took over the Management in 1942.
During the 1980s, HAL's operations saw a rapid
increase which resulted in the development of new
indigenous aircraft such as HAL Tejas and HAL
Dhruv. HAL also developed an advanced version of
the MiG-21, known as MiG-21 Bison, which
increased its life-span by more than 20 years.

4. HAL has also obtained several multi-million dollar
contracts from leading international aerospace firms such
as Airbus, Boeing and Honeywell to manufacture aircraft
spare parts and engiene.

5.  19 Production Units and 9 R&D in 7 locations over India
Bangalore Division
Kanpur Division
Koraput Division
Hyderabad Division
Nasik Division
Lucknow Division
Korwa Division
HAL DIVISIONS

6. HAL SERVICES

7. ABOUT HAL,ACCESSORIES
DIVISION LUCKNOW
• Established in 1964.
• Primary Objective - To manufacture systems and accessories
for various aircrafts and engines and attain self sufficiency in
this area.
• Spread over an area of 94,000 sq m.
• Division Manufactures – Accessories for Aircrafts like Avro,
Dornier, Cheetah, Cheatak & Advanced Light Helicopters(ALH)
& SU-30.

8. DIVISIONS OF HAL LUCKNOW
LCA Division
ALH Division
Sukhoi Division
Instrument Factory
Accessories Division

9. SUKHOI SU-30 MKI
• The SUKHOI SU-30 MKI is a fourth generation air
superiority fighter developed by Russia’s Sukhoi and
assembled under license by India’s Hindustan Aeronautics
Limited (HAL) for the Indian Air Force (IAF).
• A variant of the Sukhoi SU-30,it is a heavy, all weather,
long range fighter.

10. SPECIFICATIONS
Crew: 2
Length: 21.935 m
Wingspan : 14.7 m
Height: 6.36 m
Wing area: 62.0 m²
Empty weight: 17,700 kg
Loaded weight: 24,900 kg
Max takeoff weight: 38,800 kg
Maximum speed: Mach 2.35(2,500 km/h) at
11,000m.
Range: 5,000 km with internal fuel tank.

11. FUEL SYSTEMS
Purpose of an aircraft fuel system is:
1. To store & deliver the proper amount of clean fuel at
the correct pressure to the engine
2. Fuel systems should provide positive and reliable
fuel flow through all phases of flight such as
o Changes in altitude
o Violent maneuvers
o Sudden acceleration and deceleration
3. Fuel systems should also continuously monitor
system operation such as: Fuel pressure , fuel
flow warning signals , tank quantity.

12. FUEL TANKS
Number of fuel tanks: 6
• Name of fuel tanks: 1, 2, 3RT, 3LT, 4,
5.
• Fuel Capacity: 1200 kg
• Special detail: Tank no. 2 is the main
tank and also known as service tank
having fuel capacity of 600 kg.
1

13. FUEL FLOW & METERING
SYSTEM: STR7-51
This system measures fuel quantity available in aircraft.
This system performs following major function:
Fuel flow metering: - This part computes total quantity of fuel
available in aircraft & transmits to various airborne systems for display
& recording.
Fuel quantity gauging : - This part exclusively computes quantity of
fuel available in service tank & transmits to various airborne systems
for display & warning.
Automatic control: - This part manages sequence of fuel flow to/from
various tanks during refueling as well as during consumption.

14. FUEL QUANTITY
TRANSMITTERS: DT41
These sensors are used for computing fuel
quantity in service tank. Capacitance of the probes
changes based on the variation in fuel level in
tank. Resultant capacitance of following probes
acts as an input for computing fuel in service tank.
Different capacitance probes used in Su-
30MKI are DT41-4, DT41-5, DT41-6, DT41-7, and
DT41-8.

15. FUEL FLOW TRANSMITTERS:
DRT2-2A
These are impeller types of sensors which
produces signal proportional to the rate of flow of
fuel through it.
Fuel consumed by aircraft is computed based on
the signals provided by these sensors.

16. FUEL QUANTITY UNIT: BT3-4
This instrument computes quantity of fuel in service tank
based on signals from sensors which are fuel probes
(DT41). It delivers computed information to following
instruments:
Digital light indicator(ITSS7-1)
Refueling Control Panel(PKUZ&-2)
Stand by Equipment(SBI)
Complex Information Signaling System(KISS)
It gives warning signal to pilot for residual fuel of 150 kg in main
tank.

17. FUELING CONTROL PANEL:
PKUZ7-2
This instrument is a display device & is used on
ground during refueling. It performs following
functions:
To display total fuel quantity
To display fuel quantity of service tank
To display actual fuel density

18. ELECTRONIC TRANSDUCER
UNIT:BEP51-1
This unit is main processing part of
automatic control portion of STR7-51
system.
It manages fuel flow based on signals from
sensors, magnetic operated level switches
(DSMKs) fitted in various tanks.
It also senses total residual fuel quantity &
transmits the warning signal to pilot.

19. SEMICONDUCTOR RELAY
CONTROL UNIT: BUPR21-1
This is a part of automatic control portion of
STR7-51 system.
This instrument works as an amplifier & a
switching device for the signals required for
opening & closing of valve of various tanks
of aircraft.

20. COCKPIT
It has multi-function display.
Made up of special LCD.
These LCDs can withstand a temperature of
-40 degree Celsius.

21. • It can absorb repeated violent impacts of landing
on aircraft carriers.
• The display is easily readable even in bright
sunlight & dims enough for the pilot to read at
night without losing night vision.

22. THANK YOU !!