Hindustan Jet Trainer ( HJT ) - 36Niranjan MaratheCS/SE 6361, Fall 2014

What is it? Name – Hindustan Jet Trainer (HJT) – Sitara ( Star )

Crew – Student and Instructor pilots

First Flight – March 2003

Primary Stake Holders –

1. Indian Air Force ( user )

2. Indian Navy ( user )

3. Hindustan Aeronautics Limited ( design and manufacturer )

4. Government Of India

Cost – 200 crores Indian Rupees ( 1 crore = 10 million )

Development

In 1999, following reviews by the Indian Air Force, the Government of India awarded HAL a contract for development, testing and certification of two prototype IJT aircraft.

The first and second prototypes of the HJT-36, labelled PT-1 and PT-2, flew on 7 March 2003 and in March 2004, respectively.

The program was then delayed with the Air Force assessing the SNECMA Turbomeca Larzac engine, with 14.1 kN of thrust, as under-powered.

In response, in August 2005, HAL reached a deal to replace the SNECMA engine with the NPO Saturn AL-55I with 16.9 kN of thrust.

Two accidents in February 2007 and in February 2009 involving each of the prototypes, which grounded the aircraft for repairs and investigations.

As of March 13, 2013 the contract for 12 LSP and 73 Full Rate production aircraft is delayed till 2014. On December 2013, HAL declared that Sitara was 'weeks' from certification.

The activities left for obtaining Final Operational Clearance (FOC) are the refinement of stall characteristics and spin testing.

Contract

Delays

Incident

Status

Problem

As of February 2014, HAL needed to resolve two major issues which is holding back the Final Operational Clearance by Air Force

1. Stall characteristics

The plane stalls at 208 km/hr as of now, where as it should be 170 km/hr.

2. Spin Recovery

The asymmetry issues are preventing the “stall and spin trials”. The aircraft reportedly rolls around 16 degrees, thereby forcing the pilots to abort the stall tests.

THIS IS UNACCEPTABLE TO THE AIR FORCE as it will create significant safety problems for the training of pilots starting 2015.

As a result the project is on the verge of being scrapped.

Unresolved Issues

Root Cause Analysis

HJT – 36 is not safe for training flight cadets.

Need for higher thrust engine is identified late.Dela

y in

acqu

iring

new

engin

eRedesigning is required due to engine change.

HAL is o

verlo

aded

with

lot o

f pro

jects

Problems with spin and stall characteristics

Inte

grati

on o

f mul

tiple

vend

or sy

stem

s

Problem Interdependency Graph ( PIG )

System To Be Hindustan Aeronautics Limited ( HAL) should build “safe” jet

trainers in timely manner.

Sub Goals

P1. Incorrect requirements analysis P2. Project management issuesP3. Technical and Vendor Issues

G1. Improve requirement analysis.G2. Improve project management processes.G3. Build technical know-how.G4. Modular development of components.

Break

Softgoal Interdependency Graph ( SIG )

References• http://

in.rbth.com/blogs/2014/02/24/flameout_why_the_iaf_wont_accept_hals_jet_trainer_33117.html• http://

www.livemint.com/Politics/FJGxBcDmUvGRMC33QmijwJ/HAL-seeks-assistance-in-reducing-HJT36-weight.html

• http://www.livefistdefence.com/2014/03/hals-ijt-delayed-iaf-scouts-foreign.html• http://indiatoday.intoday.in/story/iaf-hal-jet-trainer-ijt-sitara-bae-systems/1/398599.html• http://

www.janes.com/article/45602/ijt-problems-force-indian-air-force-to-modify-fast-jet-training-programme

• http://www.sps-aviation.com/story_issue.asp?Article=1530

Thank You !