Note: For best experience of animation, Proceed in Slide Show Mode Of MS Power Point
Lockheed Martin F35 Lightning II's
1. Brief History
2. Dimensions
3. Concept of Shockwave
4. Drag Coefficient
5. Reynold’s Number
6. Features
7. Capabilities
2. 2
a) Brief History
b) Dimensions
c) Concept of Shockwave
d) Drag Coefficient
e) Reynold’s Number
f) Features
g) Capabilities
D I S C U S S I O N
3. The F-35 Lightning II , F-22 Raptor and China’s Chengdu J-20 are the only three fifth-generation fighters in
the world.Although the definition of a fifth-gen fighter is still quite loose, it typically covers the aircraft’s
ability to evade radar (stealth) and having the latest avionics and systems which enhance the pilot’s
situational awareness.
"People think stealth is what defines 5th Gen[eration aircraft]. It’s not the only thing. It’s stealth and then
the avionics and the fusion of avionics."
—Gen. Mike Hostage, Former Commander, Air Combat Command, U.S. Air Force
WHAT MAKESAN AIRCRAFTA FIFTH GENERATION FIGHTER JET?
F-35 Lightning II, fifth generation, advanced, single-engine tactical fighter developed by Lockheed
Martin in conjunction with BAE Systems and Northrop Grumman.
4. 4
In 1997, Lockheed Martin was selected as one of two companies to participate in the Joint Strike
Fighter concept demonstration phase. In October 2001, the Lockheed Martin X-35 was chosen as the
winner of the competition and teamed with Northrop Grumman and BAE Systems to begin
production. The first production F-35A rolled out of the assembly in FortWorth,Texas, in February of
2006.The F-35 is developed, produced, and supported by an international team of leading aerospace
companies.
Northrop Grumman: Carrier aircraft and low-observable stealth technology and supports logistics,
sustainment, modeling and simulation and mission planning.
BAE Systems: Contributes capabilities, including STOVL experience, advanced lean manufacturing,
flight testing and air systems sustainment.
BRIEF HISTORY AND INTRODUCTION
18. SHOCKWAVE
A sharp change of pressure in a narrow region travelling
through a medium, especially air, caused by explosion or
by a body moving faster than sound. CondensationClouds
are formed as air temperature decreases as pressure
decreases at high transonic velocities.
With Max Speed of 536.448 m/s, F-35 has:
𝑴𝒂𝒄𝒉 𝑵𝒐. = 𝟏. 𝟔 𝑴𝒂
𝑺𝒖𝒑𝒆𝒓𝑺𝒐𝒏𝒊𝒄 𝑭𝒍𝒊𝒈𝒉𝒕
21. 2
COEFF. OF DRAG (CD) & LIFT (CL) is an dimensionless coefficient that measures drag/lift and a scale that
indicates the aerodynamic shape of the body.
- Smaller the CD , Lesser will be the Fuel consumption, Greater will be theVelocity, More efficient will be
the Handling and vice versa for CL
Lift Coefficient of F-35
Wing area = A = 42.7 m2
Density= ρ = 0.1948 kg/m3
Velocity=V= Mach 1.6 (~1,200 mph)= 536.448 m/s
𝐹 𝐿 = 𝑚 ∗ 𝑔 = 31751.466𝑘𝑔 9.81 = 311481.8815 𝑁
𝑪 𝑳 =
𝟐𝑭𝑳
𝑨 ∗ 𝝆 ∗ 𝑽 𝟐
𝑪 𝑳 =
2∗ (311481.8815)
(42.7)∗(0.1948)∗(536.448)2
𝑪 𝑳 = 𝟎. 𝟐𝟔𝟎𝟔
23. 2
F-35: Reynold Number
𝑅𝑒 =
0.1948 𝑥 536.1111 𝑥 3
1.422𝑒 − 5
Re = 2.2𝑒6 > 4000
Thus flow around the F-35 is TURBULENT
⁻ Maximum speed is 1200 mph = 536.1111 m/s.
⁻ Average chord length(L)=3 m
⁻ Maximum altitude of f-35 is 15 km
Thus Density(ρ)= 0.1948 kg/m^3
And μ=1.422x10e-5 N s/m^2
25. FEATURESOF LOCKHEED MARTIN F-35 LIGHTNING-II
1. Glass Cockpit:
- Developed by Adacel
- F-35 DVI (direct voice input).2. High Dollar Helmet:
- Worth $400,000.
- Cameras and Sensors allowing the pilot to see
through the airframe.
- OpticalTargeting.
3. Lines Of Code:
- All features works on 8.2 MILLION
LINES of code .
- NASA’s space shuttle runs on
400,000 lines of code.
5. Electro-OpticalTargeting System:
- Precisely targets both on the ground and in the air.
- Infrared search and track functionality
- Greater distances than before.
4. Landing Gear:
- Stronger landing gear for the stresses
of carrier arrested landings
- a twin-wheel nose gear
26. 2
7. STOVL Innovation:
The Lighting II combined STOVL with
stealth design is the only aircraft to
combine both in aviation history.
6. Innovations in Stealth:
- F-35s are built out of radar-absorbent materials
- They have a radar cross-section as small as a golf
ball.
8 .Autonomic Logistics Information
System :
Fleetwide system ,ALIS, helps lower
its maintenance costs and maximize
uptime, support every aspect of the
program including training,
planning, maintenance, and
support.This streamlines thousands
of tasks across all F-35 bases.
9. F-35 Engine:
-The Pratt &Whitney F135 Engine was developed
specifically for the F-35 Lighting.
- 40,000 lbs of thrust = Mach 1.2 without the use of
an afterburner.
- For STOVL,this same engine incorporates a Lift
System which allows the aircraft to hover.
28. 2
F-35’s Multi-Mission CAPABILITY
The F-35 is designed with the entire battlespace in mind
- air-to-air combat,
- air-to-ground strikes,
- electronic attack,
- intelligence, surveillance and reconnaissance — can now be executed by a squadron of F-35s.
Electronic Attack
Advanced electronic warfare (EW) capabilities enable F-35 pilots to
- locate and track enemy forces,
- jam radars and disrupt attacks with unparalleled effectiveness.
- Advanced avionics give the pilot real-time 360-degree coverage .
This system allows F-35 pilots to reach well-defended targets and suppress enemy radars.
29. 2
Air-to-surface
- Using precision-guided ammunitions and air-to-air radar-guided missiles
- Active Electronically-ScannedArray (AESA) radar technology, indoor weapon and fuel bay allows F-35
pilots to engage ground targets at longer ranges without being detected and tracked
Air-to-air
- The F-35’s integrated sensors, information and weapons systems give pilots an advantage over potential
threat front-line fighter aircraft.
- 5th Generation fighter pilot can see enemy aircraft first and take decisive, lethal action from a stand-off
distance. The ability to see and not be seen is redefining previous generation air-to-air tactics.
Intelligence, Surveillance and Reconnaissance (ISR)
This ISR is performed by a core processor that does 400 billion operations per second, collects data from
the classified electronic warfare suite, developed by BAE Systems, to identify enemy radar and electronic
warfare emissions recommending which target to attack and whether pilot should use either kinetic or
electronic means to counter or negate the threat.The information gathered by F-35 sensors can be securely
shared with commanders at sea, in the air or on the ground, providing a comprehensive view of ongoing
operations.
30. 3
Interoperability
For the coalition joint strike force, the inter-operable F-35 is clearly the aircraft for the leadership role. The F-
35 is designed to share everything it can see with other aircraft and operation centers to expand
situational awareness across the entire network of aircraft. F-35s can support legacy aircraft, as well as other
F-35s.
Distributed Aperture System (DAS)
The DAS surrounds the aircraft with six
electro-optical sensors that creates a
protective sphere of situational awareness.
It warns the pilot of incoming aircraft and
missile threats
DAS provides:
1. Missile detection and tracking
2. Launch point detection
3. Weapons support
4. Day/night navigation & vision.
5. Precision tracking of wingmen/friendly
aircraft for tactical maneuvering.
