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Bgrv and indian missiles arun vishwakarma, rev 1 c
1.
Ballistic Glide Re-entry
Vehicle (BGRV) and Indian Missile Program -Arun S Vishwakarma ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com 5 Feb 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:1 Bharat Pratham and India Research Foundation
2.
Agenda
• What is BGRV • Why BGRV • Indian Context • Shourya • Agni missile family • Summary 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:2 Bharat Pratham and India Research Foundation
3.
What is BGRV? •
Re-entry vehicle Protects payload from extremes of temperature and deceleration experienced when spacecraft re-enter plant’s atmosphere – Spacecrafts use thick blunt nose RV • generate separating shockwave to keep away heated gas • Loses most energy at higher altitude, slow terminal velocity SRE (PSLV) 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:3 Bharat Pratham and India Research Foundation
4.
Missile RV Mk-6 RV
– Missiles use RV with sharp nose • High ballistic coefficient (low drag) • Loses most energy at lower altitude, high terminal velocity • Experiences much higher temperature and deceleration shock • Most missiles RVs are Ballistic RV that fall down like stones purely driven by aero-dynamic forces and material ablation • RV’s with small blunt nose made of ablative material generate separating shockwave to keep away heated gas • Most missiles use “dumb” RV • Missile accuracy depend on precision of launcher and ability of passive RV to retain shape and structure • MIRV bus gives precise velocity to RV 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:4 Bharat Pratham and India Research Foundation
5.
Drawbacks of dumb
RV • Accuracy – Depends on RV behaving consistently, accurate weather estimate – Missiles ability to impart correct final velocity at point in space when RV is detached • Warhead – To compensate for accuracy require bigger high yield warhead • Anti-Ballistic Missile (ABM) Nemesis – BM Predictable ballistic path in space and through atmosphere – Ballistic flight means high apogee altitude, radars can detect & track from great distance, giving vital time space for ABM system – Ablation leaves plasma ionic trail with large radar cross section/signature – Thermal signature 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:5 Bharat Pratham and India Research Foundation
6.
What is MBRV?
• Maneuvering Ballistic RV (MBRV) is different from Ballistic Glide Re- entry Vehicle (BGRV) • Accuracy Augmentation – Pitch and Cross range correction – Accurate to few meters – Radar scene correlation • ABM – Upto 100 G maneuver Lightning Bolts, First Maneuvering Reentry Vehicles by William Yengst ISBN # 978-1-61566-547-1 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:6 Bharat Pratham and India Research Foundation
7.
What is BGRV?
• Ballistic Glide Re-entry Vehicle Lightning Bolts, First Maneuvering Reentry Vehicles by William Yengst ISBN # 978-1-61566-547-1 Agni’s Mk-II MARV/BGRV Indian composite BGRV Missile (K-15) 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:7 Bharat Pratham and India Research Foundation
8.
BGRV Shourya/Sagarika (K15): Hypersonic
BGRV Missile 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:8 Bharat Pratham and India Research Foundation
9.
BGRV • Aerodynamics
– Long, high aspect ratio body – Slight angle of attack to generate lift. – Control surfaces: fins | paddles | small gas thrusters • Flight – On board flight control and navigation: Hi Accuracy – ~ 25 G maneuvering – Porpoise maneuver in pitch axis – “S” shape maneuver in azimuth plane – Rolling to spread heat and reduce thermal shielding 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:9 Bharat Pratham and India Research Foundation
10.
BGRV • Stealth
and ABM resistant – Non-predictive flight trajectory – ~ 25 G maneuvering – Rolling spreads heat • Reduce thermal signature • Reduced plasma RF RCS signature – Glides below Long Range Radar horizon – Flies below space based sensor’s altitude threshold – Small, light warhead 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:10 Bharat Pratham and India Research Foundation
11.
Why BGRV? • Accuracy
– Small, light warhead (Low / medium yield) against hardened or counter value targets • Evade ABM defenses – Reduced arsenal footprint, cost and security • Increase cost of ABM – Differential deterrence – Threatening to low tech adversaries (E.g TSP) – Stabilized deterrence to N3 (China, Russia, USA) • NATO study from literature – Urban target (Pg 180) Reference: • Wings of Fire : APJ Kalam • Weapons Of peace: Raj Changappa • Lightening Bolt: William Yeangst 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:11 Bharat Pratham and India Research Foundation
12.
BGRV : Indian
context • Low yield warhead • Accuracy for 90% target destruction • Assures destruction of counter value targets • Cross range targeting of missile silos on far side of mountain slope • ABM hardened • Small missile force does job of large qty • Multi-application platform – Shourya/ Sagarika – Agni-II, II+ – Agni-III, V, MIRV 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:12 Bharat Pratham and India Research Foundation
13.
Shourya • BGRV • Booster
lifts BGRV to 5 Km • Main stage imparts kinetic energy for cruise at 40 km altitude – Evade space sensor and ground radar • Main stage stays attached to BGRV – Small Radar RCS • Fins for hypersonic cruise flight 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:13 Bharat Pratham and India Research Foundation
14.
Shourya flight types 05
Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:14 Bharat Pratham and India Research Foundation
15.
Shourya flight types Shourya/Sagarika
: Hypersonic BGRV Missile ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com 05 Feb, 2011 Bharat Pratham and India Research Foundation Page:15 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Bharat Pratham and India Research Foundation
16.
MBRV • Maneuvering Ballistic
RV: Lightning Bolts, First Maneuvering Reentry Vehicles by William Yengst ISBN # 978-1-61566-547-1 – Pitch – CrossRange 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:16 Bharat Pratham and India Research Foundation
17.
BGRV foot print
Lightning Bolts, First Maneuvering Reentry Vehicles by William Yengst ISBN # 978-1-61566-547-1 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:17 Bharat Pratham and India Research Foundation
18.
What is BGRV? •
“S” Curve on Azimuth plane Lightning Bolts, First Maneuvering Reentry Vehicles by William Yengst ISBN # 978-1-61566-547-1 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:18 Bharat Pratham and India Research Foundation
19.
BGRV Re-entry
Lightning Bolts, First Maneuvering Reentry Vehicles by William Yengst ISBN # 978-1-61566-547-1 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:19 Bharat Pratham and India Research Foundation
20.
US MRV
MRV Mk4A Lightning Bolts, First Maneuvering Reentry Vehicles by William Yengst ISBN # 978-1-61566-547-1 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:20 Bharat Pratham and India Research Foundation
21.
Pershing-II MARV
Lightning Bolts, First Maneuvering Reentry Vehicles by William Yengst ISBN # 978-1-61566-547-1 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:21 Bharat Pratham and India Research Foundation
22.
Pershing-II MARV
Lightning Bolts, First Maneuvering Reentry Vehicles by William Yengst ISBN # 978-1-61566-547-1 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:22 Bharat Pratham and India Research Foundation
23.
Agni MRV/BGRV 05 Feb,
2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:23 Bharat Pratham and India Research Foundation
24.
Agni MRV/BGRV 05 Feb,
2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:24 Bharat Pratham and India Research Foundation
25.
Agni missile series •
RV Mk1, Mk-II finned and no-fin 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:25 Bharat Pratham and India Research Foundation
26.
Chinese / Paki
- M11 • Ballistic Glide Re-entry Vehicle Lightning Bolts, First Maneuvering Reentry Vehicles by William Yengst ISBN # 978-1-61566-547-1 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:26 Bharat Pratham and India Research Foundation
27.
Russian Topol-M • Porpoise
(skipping) trajectory Lightning Bolts, First Maneuvering Reentry Vehicles by William Yengst ISBN # 978-1-61566-547-1 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:27 Bharat Pratham and India Research Foundation
28.
Development timeline
Lightning Bolts, First Maneuvering Reentry Vehicles by William Yengst ISBN # 978-1-61566-547-1 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:28 Bharat Pratham and India Research Foundation
29.
Performance
ISBN # 978-1-61566-547-1 Lightning Bolts, First Maneuvering Reentry Vehicles by William Yengst 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:29 Bharat Pratham and India Research Foundation
30.
Indian precursor of
BGRV 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:30 Bharat Pratham and India Research Foundation
31.
Reference •
DRDO, Technical Publications • Lightning Bolts, First Maneuvering Reentry Vehicles by William Yengst ISBN # 978-1-61566-547-1 • Indian Defense Review, Lancer Publication • Wikipedia 05 Feb, 2011 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:31 Bharat Pratham and India Research Foundation
32.
Backup &
Reference material 22 October 2005 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:32 Bharat Pratham and India Research Foundation
33.
Reading Material
ISBN # 978-1-61566-547-1 Lightning Bolts, First Maneuvering Reentry Vehicles by William Yengst 22 October 2005 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:33 Bharat Pratham and India Research Foundation
34.
Reading Material
Lightning Bolts, First Maneuvering Reentry Vehicles by William Yengst ISBN # 978-1-61566-547-1 22 October 2005 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:34 Bharat Pratham and India Research Foundation
35.
Reading Material
Lightning Bolts, First Maneuvering Reentry Vehicles by William Yengst ISBN # 978-1-61566-547-1 22 October 2005 ©Arun S Vishwakarma, Email: Arun_S1971@gmail.com Page:35 Bharat Pratham and India Research Foundation
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