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Department of

Aeronautical Engineering

Department of Aeronautical Engineering

Department of

Aeronautical Engineering

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LEAR JET 25B

The Learjet 25 is an American ten-seat (two crew and eight passengers), twin-engine, high-speed business jet aircraft manufactured by Learjet. It is a stretched version of the Learjet 24. The first Model 25 flew on August 12, 1966, and the first delivery was in November 1967.

 

Specifications (Learjet 25D)

  • Crew: Two pilots.
  • Capacity: 8 passengers.
  • Length: 47 ft 7 in (14.50 m)
  • Wingspan: 35 ft 7 in (10.84 m)
  • Height: 12 ft 3 in (3.73 m)
  • Wing area: 231.77 sqft (21.53 m2)
  • Airfoil: NACA 64A109.
  • Empty weight: 7,640 lb (3,645 kg)

 MORE DETAILS:

https://en.wikipedia.org/wiki/Learjet_25

 

CESSNA 152

The Cessna 152 is an American two-seat, fixed tricycle gear, general aviation airplane, used primarily for flight training and personal use. It was based on the earlier Cessna 150, including a number of minor design changes and a slightly more powerful engine running on 100LL aviation gasoline.

SPECIFICATIONS:

https://en.wikipedia.org/wiki/Cessna_152 

 

ERCO Ercoupe

The ERCO Ercoupe is a low-wing monoplane aircraft that was designed and built in the United States. It was first manufactured by the Engineering and Research Corporation (ERCO) shortly before World War II; several other manufacturers continued its production after the war.

Specialties:

  • Tricycle landing gearwith castering nose wheel, steerable if desired
  • Suitable longitudinal and lateral stability with limited up-elevator deflection, to prevent loss of control due to stalling and spinning.
  • A glide-control flap
  • Two-control operation using controls for pitch and roll.

 

SUBSONIC WIND TUNNEL

Majority of experimental data needed in aerodynamics is generated using wind tunnels. Wind Tunnel is a device for producing airflow relative to the body under test. Wind tunnels provide uniform flow conditions in their test section.

Applications of wind tunnels

  • Drag Estimation
  • Lift calculations
  • Flight mechanics analysis
  • Stability determination of models
  1. Non-Aero applications in
  • Civil Engineering
  • Automobile Engineering
  • Calibration of instruments

 

JET ENGINE BAY

A jet engine is a reaction engine discharging a fast-moving jet that generates thrust by jet propulsion. This broad definition includes air breathing jet engines (turbojets, turbofans, ramjets, and pulse jets) and non-air breathing jet engines (such as rocket engines). In general, jet engines are combustion engines

In common parlance, the term jet engine loosely refers to an internal combustion air breathing jet engine. These typically feature a rotating air compressor powered by a turbine, with the leftover power providing thrust via a propelling nozzle — this process is known as the Brayton thermodynamic cycle. 

 

AERONAUTICAL LABORATORIES

  • Analysis and Simulation Lab : This Lab enables the students gain a fair knowledge on design, analysis and simulation of aircraft structural parts, and also focuses on the practical learning of the simulation applications of the aircraft parts and sub systems. In addition to this, it helps us in examining the different parameters and factors affecting its performance.  

 

  • Avionics and Microprocessor Lab : Avionics stands for Aviation Electronics, which deals with electronic components used in various Aircrafts. The avionics and microprocessor laboratory comprises of experiments which deal with digital electronics, microprocessors and MIL-1553B avionics data buses. The Digital Electronics experiments include multiplexer and DE multiplexer, encoder and decoder, comparator, shift registers etc., which helps the students to understand logical expressions that could be implemented using minimum number of logic gates with the help of bread board and digital trainer kit.  These experiments provide an ideology of miniaturization of electronic circuits that were used in Aircraft. Microprocessors have numerous applications in avionics including automatic flight control system. The microprocessor programming would help the students to have an idea on simple assembly language programs. The experiment related to Avionics data bus gives a brief idea about  data transfer between different subsystems in an Aircraft. 

 

  • Propulsion Lab : The Propulsion laboratory enables the students to understand the basic concepts and carry out experiments in Aerospace Propulsion. This laboratory provides information about the various engines used in aircraft and its operation conditions.  The laboratory gives an idea about the parts and working principle of the various components of aircraft piston and jet engines. The laboratory has facility to calculate the calorific value of aviation fuel. The performance of the aircraft propeller can be estimated using the propeller arrangement. The cascade testing of axial flow compressor and turbine blade row enables the performance estimation of blade row. The heat interactions can be studied using the free convection and forced convection apparatus

 

  • Aircraft Structural Analysis Lab : The aircraft structures laboratory includes practical experiments oriented with material aspects as well as structural mechanics. The experiments in this laboratory course cover the following. Strain measurement; inverse methods for material property determination (Poisson's ratio and Young’s Modulus) using measured static and dynamic structural response in conjunction with simple structural models; shear centre of open section thin-walled beam; Displacement and strain distribution in bending and torsion of twin-walled open and closed section beams; Buckling of beams/plates; Natural frequency, natural modes and modal damping of beams/plates, ; Fabrication of fiber reinforced composite laminate; tension, compression, inter-laminar shear, impact and hardness testing for determination of elastic moduli and strength of material; coefficient of thermal expansion.

 

  • Airframe Production and Maintenance Lab : This lab deals with the basic concepts of airframe production techniques and various maintenance processes. In the production part, the student will learn about different tools used for production work and handles lathe and its accessories to perform various shaping, turning, thread cutting and milling exercises. They are also familiarizes TIG, MIG and PLASMA welding techniques. Maintenance lab comprises study about airframe loading, structural members and general concepts. It gives an idea about assembly of aircraft fuselage, wings and ancillary structures. The maintenance of aircraft structural materials like wood, fabric and composites will be performed gluing, riveting, patchwork etc.

 

  • Aerodynamics and Flight Mechanics Lab : Aerodynamics lab familiarize students in basic aerodynamics such as  lift generation,drag estimations etc with the help of subsonic and supersonic wind tunnels. Flight mechanics lab familiarize students in stability and control aspects of moving flight in all its six degree of freedom with the help of flight demonstrating system.

 

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