Presentation about the Rolls-Royce merlin engine.

1. Rolls-Royce Merlin motor
Jente Vanhoenacker

2. Inhoud
1. Rolls-Royce vliegtuigmotoren
2. Ontwikkeling
3. Specificaties en werking
4. Gebruik
5. Varianten

3. Rolls-royce
vliegtuigmotoren

4. Rolls-Royce vliegtuigmotoren
• Eerste vliegtuigmotor in
1914
• WOI  +50% geallieerde
vliegtuigen
• Jaren ’20 belangrijkste
divisie
• Motoren genoemd naar
roofvogels
• Eagle, Falcon, Hawk
Rolls-royce Eagle

5. Rolls-Royce vliegtuigmotoren
• Kestrell  aangepaste
versie Eagle
• Later Supercharged
Peregrine
• Vulture: 2 Peregrines met
een gemeenschappelijke
krukas (X-24 configuratie)
Rolls-royce Vulture

6. Ontwikkeling

7. Ontwikkeling
• Begin jaren ’30
• Motor met 700+ Pk
Rolls-Royce Peregrine
• Gerenoveerde versie van
de Rolls-Royce Kestrell
Rolls-Royce Peregrine

8. Ontwikkeling
• Eerste versie “Merlin” was PV-12
• Laatste ontwerp van Henry Royce voor
zijn dood
• Beschouwd als vrij onbetrouwbaar
• Eerste geslaagde test in juli 1934
• Eerste vlucht op 21 februari 1935

9. Specificaties en
werking

10. Algemene karakteristieken
• V-12 (60˚)
• Boring: 5,4in (137mm)
• Slag: 6,0in (152mm)
• Motorinhoud: 1649cu (27l)
• Lengte: 88,7in (225mm)
• Breedte: 30,8in (78mm)
• Hoogte: 40in (102mm)
• Droog gewicht: 1,640 lb
(744 kg)
Rolls-royce Merlin 61

11. Componenten
• Kleppensysteem:
- bovenliggende nokkenas
- twee in- en uitlaatkleppen
per cilinder
• Supercharger
• Brandstofsysteem: Twin-
choke updraught Rolls-
Royce / S.U. carburateur
met automatische
mengselregeling. Twin
onafhankelijke
brandstofpompen.

12. Componenten
• Brandstoftype: 100/130 Octaan benzine.
• Oliesysteem: droog carter met één drukpomp en twee spoelpompen.
• Koelsysteem: 70% water en 30% ethyleenglycol koelmiddelmengsel onder druk.
• Supercharger intercooler systeem volledig gescheiden van hoofdkoelsysteem.
• Reductie: 0,42: 1
• Achterwaarts geplaatste uitlaat voor meer thrust (ejector exhaust)
 +70 pk (52kW)

13. Prestaties
• Geleverd vermogen:
- 1,290 pk (962 kW) bij 3,000 tr/min tijdens opstijgen
- 1,565 pk (1,167 kW) bij 3,000 tr/min op 12,250 ft (3,740 m, MS versnelling)
- 1,580 pk (1,178 kW) bij 3,000 tr/min op 23,500 ft (7,200 m, FS versnelling)
• Specifiek vermogen: 0.96 pk/cu in (43.6 kW/l)
• Compressieverhouding: 6:1
• Brandstofverbruik: Minimum 30 Imp gal/h (136 l/h), maximum 130 Imp gal/h
(591 l/h)
• Vermogen-gewichtsratio: 0.96 pk/lb (1.58 kW/kg) bij maximum vermogen

14. Werking
https://www.youtube.com/watch?v=ldIAmIqNqKI

15. Gebruik

16. Gebruik
• Verenigd-Koninkrijk
• Gevechtsvliegtuig
• 1 Rolls-Royce Merlin motor
• Eerste vlucht in maart
1936
• https://www.youtube.com
/watch?v=r-
YYIgWnlbg&t=30s
Supermarine Spitfire

17. Gebruik
• Verenigd-Koninkrijk
• Gevechtsvliegtuig
• 1 Rolls-Royce Merlin motor
• Eerste vlucht op 12
oktober 1937
Hawker Hurricane

18. Gebruik
• Verenigde Staten
• Gevechtsvliegtuig
• 1 Packard V-1650 Merlin
motor
• Eerste vlucht op 26
oktober 1940
North-American P-51 Mustang

19. Gebruik
• Verenigd-Koninkrijk
• Bommenwerper
• 4 Rolls-Royce Merlin
motoren
• Eerste vlucht op 9 januari
1941
Avro Lancaster

20. Gebruik
• Verenigd-Koninkrijk
• Bommenwerper
• 4 Rolls-Royce Merlin
motoren
• Eerste vlucht in 1939
Handley Page Halifax

21. Gebruik
• Verenigd-Koninkrijk
• Jachtbommenwerper
• 2 Rolls-Royce Merlin
motoren
• Eerste vlucht 25 november
1940
De Havilland Mosquito

22. Varianten

23. Varianten
Merlin I 890 hp (664 kW) at 2,850 rpm
First production Merlin; 172 built. Merlin I through III used
100% glycol coolant.
Merlin II (RM
1S)
880 hp (656 kW) at 3,000 rpm
Used 100% glycol coolant. First production Merlin II delivered 10
August 1937.
Merlin III (RM
1S)
880 hp (656 kW) at 3,000 rpm
Variant of Merlin II with universal propeller shaft, able to be fitted
with de Havilland or Rotol propellers

24. Varianten
Merlin X (RM
1SM)
1,280 hp (954 kW) at 3,000 rpm
this was the first production Merlin to use a two-speed
supercharger; Used in Halifax Mk.I, Wellington Mk.II,
and Whitley Mk.V bombers. First production Merlin X
delivered 5 December 1938.
Merlin XII (RM
3S)
1,175 hp (876 kW) at 3,000 rpm
Coffman cartridge starter. First version of Merlin to use
30/70% glycol/water coolant with reinforced
construction, able to use constant boost pressure of up
to +12 psi (83 kPa) using 100 octane fuel. First
production Merlin XII, 2 September 1939.
Merlin XX (RM
3SM)
1,280 hp (954 kW) at 3,000 rpm
First production version with two speed supercharger
giving boost pressures of up to + 14 psi (97 kPa). First
production Merlin XX, 4 July 1940.

25. Varianten
Merlin 21 1,280 hp (954 kW) at 3,000 rpm
Merlin XX with direction of coolant flow reversed for Mosquito
wing radiator installation
Merlin 23 1,390 hp (1,037 kW) at 3,000 rpm
Merlin 22 with direction of coolant flow reversed for Mosquito
wing radiator installation
Merlin 25 1,610 hp (1,201 kW) at 3,000 rpm
Merlin 24 with direction of coolant flow reversed for Mosquito
wing radiator installation

26. Varianten
Merlin 28 1,300 hp (969 kW) at 3,000 rpm Built by Packard as the V-1650-1
Merlin 29 1,300 hp (969 kW) at 3,000 rpm With splined propeller shaft
Merlin 31 1,300 hp (969 kW) at 3,000 rpm Built in the United States as the Packard V-1650-1

27. Varianten
Merlin 32 (RM 5M) 1,620 hp (1,208 kW) at 3,000 rpm
A "low altitude" version of Merlin with cropped supercharger
impellers for increased power at lower altitudes, as per the
Merlin XXX; fitted with a Coffman engine starter; used mainly
in Fleet Air Arm aircraft. First production Merlin 32 delivered 17
June 1942.
Merlin 33 1,400 hp (1,044 kW) at 3,000 rpm Packard-built Merlin 23
Merlin 38 1,400 hp (1,044 kW) at 3,000 rpm Packard-built Merlin 24

28. Varianten
Merlin 45 (RM 5S) 1,185 hp (884 kW) at 3,000 rpm
A variant of the Merlin XX fitted with single-stage, single-speed
supercharger for low altitude Spitfire use. First production
Merlin 45 delivered 13 January 1941.First of specialised engines
for Spitfire Mk V variants and early Seafires.
Merlin 45M 1,230 hp (917 kW) at 3,000 rpm
Version of Merlin 45 with "cropped" (smaller diameter)
supercharger impeller allowing greater boost at low altitudes.
Merlin 47 (RM 6S) 1,100 hp (820 kW) at 3,000 rpm
Adapted with a Marshall compressor (often called a "blower") to
pressurise the cockpit. First production Merlin 47 delivered 2
December 1941.

29. Varianten
Merlin 50 (RM 5S) 1,185 hp (884 kW) at 3,000 rpm
Low-altitude version with supercharger impeller "cropped" to
9.5 in (241 mm) in diameter. Merlin 50 series was first to use
the Bendix Stromberg "negative-g" carburettor.
Merlin 55M 1,230 hp (917 kW) at 3,000 rpm Variant with "cropped" supercharger impellor
Merlin 60 1,390 hp (1,037 kW) at 3,000 rpm
First variant fitted with two-stage, two-speed supercharger;
rated for high altitude.

30. Varianten
Merlin 61 (RM 8SM) 1,280 hp (954 kW) at 3,000 rpm
Production variant of Merlin 60 fitted with a new two-speed
two-stage supercharger providing increased power at medium
to high altitudes. First British production variant to incorporate
two-piece cylinder blocks designed by Rolls-Royce for
the Packard Merlin. First production Merlin 61 delivered 2 March
1942.
Merlin 64 1,280 hp (954 kW) at 3,000 rpm Cabin pressure blower.
Merlin 66 (RM 10SM) 1,315 hp (981 kW) at 3,000 rpm
Fitted with supercharger rated for low altitude; Bendix-
Stromberg anti-g carburettor.

31. Varianten
Merlin
130/131
2,070 hp (1,544 kW) at 3,000 rpm
Engine modified to decrease frontal area to a minimum and was the first
Merlin series to use down-draught induction systems. Coolant pump moved
from the bottom of the engine to the starboard side. Two-speed, two-stage
supercharger and S.U. injection carburettor giving a maximum boost of +25 psi
(172 kPa).
Merlin
620
Capable of emergency rating of 1,795 hp (1,339 kW) at 3,000 rpm using
+20 psi (138 kPa) ; civilian engine developed from Merlin 102; two-stage
supercharger optimised for medium altitudes, and used an S.U. injection
carburettor. The Merlin 620-621 series was designed to operate in the severe
climatic conditions encountered on Canadian and long-range North Atlantic air
routes.

32. Dank u.