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1 Overview of High-Performance Vehicles as Naval Platforms Volker Bertram.

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Presentation on theme: "1 Overview of High-Performance Vehicles as Naval Platforms Volker Bertram."— Presentation transcript:

1 1 Overview of High-Performance Vehicles as Naval Platforms Volker Bertram

2 2 Our definition: no simple monohull form weight supported by: hydrostatic buoyancy hydrodynamic lift aerostatic lift aerodynamic lift hybrid High-performance usually includes: usually high speeds good seakeeping characteristics enhanced manoeuvrability reduced signatures High-performance Marine Vehicles

3 3 SYTKA = System Technology for Future Combatants compared displacement fast monohull to HPMVs identifying as potential alternatives SWATH high-speed SWATH (HSS) surface-effect ship (SES) trimaran MTG conducted study of HPMVs

4 4 Design characteristics: platform stability general arrangement (deck area and volume space) maximum draft... Hydrodynamic characteristics: range of operating speed propulsion configuration speed loss in waves seakeeping, manoeuvrability weight and trim sensitivity... HPMVs investigated in terms of 4 characteristics

5 5 Structural characteristics: global strength, local strength dynamic loads (slamming) use of advanced materials complex structures... Other characteristics: acquisition and operating costs state of development of the technology survivability: detectability or stealth characteristics vulnerability

6 6 Classification follows sustention triangle almost 100 different concepts for hybrids different stages of development: preliminary concept prototypes in operation

7 7 Displacement ships SWATH HSS trimaran wave piercer

8 8 Small Waterplane Area Twin Hull (SWATH) + superior seakeeping + large deck area – higher power requirement – weight and trim sensitive – large draft – acquisition and operating costs

9 9 Early SWATH demonstrators in USA and Japan T-AGOS US Navy “Hibeki“ Japan

10 10 German SWATH development in 2001 Wehrforschungsschiff, TNSW

11 11 German SWATH development in 2001 SWATHs for pilots of Abeking+Rasmussen A+R proposed also navy SWATH

12 12 German Navy project for mine-hunting SWATHs for Navy Applications Cooperation: Luerssen Shipyard, A+R

13 13 SWATH “Sea Shadow” source: stealth technology demonstrator

14 14 SWATH SLICE source: Lockheed Martin Lower resistance through wave system interaction

15 15 High Speed SWATH (HSS) source: SWATH bow section Stern planing catamaran GTS Stena Explorer MTG HSS design

16 16 Record-breaking “Adventurer” Trimarans allow high speeds Artist vision Reality

17 17 Trimaran Demonstrator “Triton” UK Navy: Trimaran demonstrator source: + low power at high speed + reduced operating costs + better damage stability + good seakeeping + large deck area + efficient payload layout + good survivability – ?

18 18 Concept study of MTG Trimarans investigated by several navies

19 19 Wave Piercer source: Incat 045, HMAS “Jervis Bay” Incat HSV-X1 “Joint Venture”

20 20 Wave Piercer Incat HSV-X1 “Joint Venture” (US Army) 500 fully equipped troops 40+ knots up to 1000 nm

21 21 Paragon Mann: VSV Wave Piercer Patrol boat Wave Piercer source:

22 22 Wave Piercer Projects source: Stealth designDD 21 project Stealth design“Sea Wraith” MTG Frigate

23 23 Fast Monohull source: Blohm&Voss Only civilian applications built

24 24 Hydrofoils

25 25 + high cruising speed + improved seakeeping – limited payload capability – large draft Russian Mukha class Surface Piercing Hydrofoils (SPH) Fully Submerged Hydrofoils (FSH) photo: Ehlers Canadian Bras d‘Or PHM (Boeing)

26 26 Air-Cushion Vehicles

27 27 + very high speed + low vulnerability to underwater explosions + small draft and underwater signature + amphibious capability source: – affected by wind – trim sensitivity – high acquisition cost – high maintenance cost

28 28 USA employs ACV as LCAC (Landing Craft Air Cushion)

29 29 Russian LCAC Aist Class 70 knots photos: Ehlers Russian LCAC Pomornik class Largest ACV worldwide 150t payload, 63 knots

30 30 Finnish ACV “Tuuli”delivered in 2002 photos: Ehlers ACVs suitable for operation in ice

31 31 SES (Surface Effect Ships)

32 32 No surface effect involved + operate at high speeds (> 40 knots) + reduced underwater signature + improved shock resistance + good platform stability + shallow draft and large deck area – speed loss in head seas – loss of amphibious capability – high acquisition and maintenance costs Air Cushion Catamarans (SES)

33 33 Various SES built and operated by navies Oksøy class minehunter (NO) AGNES 200 (FR) “Bora“ missile corvette (RU)

34 34 Stealth SES built in Scandinavia Skjöld class patrol boat (NO)“Smyge“ (SE)

35 35 SES Demonstrator “Corsair” Blohm&Voss MEKAT concept allows modular conversion

36 36 Air-Cavity Ship uses air-lubrification Blohm&Voss % engine power for air film vs % in SES Principle Smerna Ropax

37 37 Hybrid Hydrofoils Hysucat HYSWAS

38 38 HYSWAS = Hydrofoil small waterplane area ship Foil contribute 30-70% lift + extended range + good seakeeping – high cost – payload critical

39 39 German Concept study never realized Design study for fast ferry by Bremer Vulkan photos: EMIT

40 40 Japanese built prototype TSL-F

41 41 Navy HYSWAS projected US Projects ranging from patrol boat to 2400t frigate

42 42 HYSWAS demonstrator: “Quest” Tested 1995, US Navy

43 43 Hysucat: Hydrofoil-supported catamaran South-African development, Tandem foil arrangement + good seakeeping + low resistance – foil tailored to design condition

44 44 Sustention Pyramid

45 45 Wing-in-Ground (WIG) = Ekranoplans Source: + very high cruising speeds + good transport efficiency (vs aeroplanes) + no airports needed – safety concerns – low payload – take-off requires high power

46 46 Russian Navy used Ekranoplans “Caspian Sea Monster” 550t weight (> ) 500 km/h Source:

47 47 Russian Navy used Ekranoplans “Lun” (missile launcher) 400t weight, 450 km/h Source:

48 48 Russian Navy used Ekranoplans “Orlyonok” (troop transporter) 110t weight, 400 km/h Source:

49 49 US Navy has studied WIGs as transporters

50 50 German Wing-in-Ground (WIG) Flightship Hoverwing

51 51 Deep-V monohull Planing hulls Semi-planing hulls Weinblume (staggered hull cataramans)... Many more concepts exist...

52 52 And now it’s time to…

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