EQUIPMENT

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90:Missions

See also :

Piston Engines

Turboprop Engines

Jet Engines

Rocket Engines

2017-11-20
Sub-Index

ENGINES
 
  AIRCRAFT  ENGINES  
 
     
     
  AAC  AIRCRAFT  ENGINES  
     
  See also : Propeller vs Jet Thrust - -  Abbreviatons  
     
 

Introduction

Unless we take the trouble to modelize the basic specifications of each engine (essentially: output and SFC), and the data collection aims toward that goal, it might be useful so simplify the collection with a reduced amount of data sets standing for those engines referred to.  In the table below these "AAC-Engines" are show in bold.   Whichever the final choice, aircraft engines will all be "AAC-Engines" with a specific AAC identification, for practical and legal (intellectual property rights for brand names) reasons if for none others.

In the tables below, the key data are shown in bold against a pale grey background, with other details of lesser importance shown against a beige background.

Engine Designation in AAC

While it will be subject to updates or modifications, AAC-Engines will be named as follows :
3 digits attempting to define the "genre" of engine at stake
4 digits identifying the level of output
1 letter to identify a "subvariant" (essentially : extra power available or not)

Engine Characteristics in AAC

Besides the obvious (propelling the vehicule used by the player) engines in AAC are characterized as follows :

Power

and/or

Thrust

 

A measure of the basic propelling powered generated by the engine.

  • expressed as "horsepower" (hp) for engines driving a propeller and "thrust" (lbf) for jet or rocket engines.

  • engines driving a propeller may offer an additional "residual" thrust.

  • engines driving a propeller will see their propelling power converted into thrust

  • using the "throttle" will make power available from 5% up to 100% in a linear manner

  • using the "throttle" will make extra power (above 100%) available in a instantaneous non-linear manner

Power:idle

5%

Corresponding to engine power being closed but with the engine still running (not shut off)

Power:military

100%

Corresponding to nominal maximum power, without using extra power.  Contrary to real life, there are no time limitation for the use of "military power" - the notion of "maximum continuous" is thus absent from AAC

Power:extra

1++%

Corresponding to a level of power output beyond the nominal maximum.  This refers to the use of reheat or post-combustion on a jet engine, or "combat emergency power" on a piston engine (including the notion of methanol, water, etc injection)

There are no preset proportion of extra power that would apply to all engines as it varies from one engine to the other, hence the 1++% representing it.  This extra power is not a linear function; when lit up, it represent a ...% thrust increase (according to engine) until throttle is reduced to 100% or less (see R.O.E)

Contrary to real life, there are no time limitation in the use of "extra power", it just sucks more fuel which, when fuel management is "ON", is a matter of some importance

Power:cruise 66%

This is more a notion than a predefined setting even if a level of 66% will be referred to in AAC.   Then, players may discover that different power setting may offer a longer range.  When all aircraft and engine details will be finalized (eg: speed obtained with different power settings) it will be possible to compute which power setting will offer the best range.  Speed is not referred to here as this notion is associated with individual aircrafts rather than with engines

Fuel consumption

SFC

Some engines are more thirsty than others, and this notion is represented by the Specific Fuel Consumption (SFC).  In AAC it will generally be expressed in lb/hp/hr or in gal/hp/hr (see: Measurements).  In AAC, the SFC is strictly a linear function.
Reverse

Some AAC-Engines, either providing thrust of driving a propeller, will be able to offer a "reverse" function.  Merely intended as a gimmick, it might be put to good use to allow "tactical landings".   When activated, it will offer a throttable level of power up to 100% only.   The function is associated with aircrafts rather than with engines, although it will de facto generate a specific sub-variant for an engine offering the possibility

Damage to engine
Damage to aircraft

(to be updated...)

AAC engines may be damaged by ennemy fire and the level of damage is dependent on the number and type of "bullet/shell" directly hitting the engine or exploding in the proximity of the aircraft.

Proximity hits only apply to shells fired by anti-aircraft guns (AA) not by on-board aircraft guns (AC)

The number of hits should be read as successive or cumulative during a flight

Direct hits

MG/Light
7.62mm
-
MG/Medium
12.7mm
-
MG/Heavy
13.2mm
14.5mm
AK/Light
20mm
23mm
AK/Medium
30mm
40mm
AK/Heavy
-
57mm
Flak/Heavy
75mm
127mm

Hit Area

Damage

AC  guns AC guns
AA guns
AC guns
AA guns
AC guns
AA guns
AC guns
AA guns
AC guns
AA guns
AA guns

Engine

on fire

10 5 4 3 2 1 -

Engine

out

20 10 8 6 4 2 -

Aircraft

flaps out

12 6 5 4 3 1 -

Aircraft

flaps out

when the damaged aircraft is equipped with an arresting hook, it means it's also out of service
when the damaged aircraft is equipped with a braking chute, it means it's also out of service

Aircraft

landing gear

14 7 6 5 4 2 -

Note

landing gear

when the landing gear is out, then the flaps are on again

Aircraft

out

48 24 12 6 3 3 1

Proximity hits
(< metres)(sharpnels)

MG/Light
7.62mm
-
MG/Medium
12.7mm
-
MG/Heavy
13.2mm
14.5mm
AK/Light
20mm
23mm
AK/Medium
30mm
40mm
AK/Heavy
-
57mm
Flak/Heavy
75mm
127mm

Hit Area

Engine

AC  guns AC guns
AA guns
AC guns
AA guns
AC guns
AA guns
AC guns
AA guns
AC guns
AA guns
AA guns

Engine

on fire

n/a n/a n/a n/a 5 3 2

Engine

out

n/a n/a n/a n/a 5 5 3

Aircraft

flaps

n/a n/a n/a n/a 5 2 3

Aircraft

landing gear

n/a n/a n/a n/a 5 3 4

Aircraft

out

n/a n/a n/a n/a 10 7 5

Damage control

(to be updated...)

The very idea of taking damage is to allow the player to control them

Damage Control

Action Required or Allowed

Engine

on fire

use fire extinguisher to set the fire out (unlimited) or... fly with an engine on fire (to be confirmed)

Engine

out

continue the flight (back to base) with remaining engine(s) or  ...  bail out if single engined

Flaps
(hook, chute)

out

it will be a high speed landing ... or
it will be a high speed landing ... into the crash barrier (aircraft carriers and selected airstrips)

Landing gear

out

it will be a wheel up landing or ... a bail out in the vicinity of Pedro assistance

Aircraft

out

Eject !  Eject !  Eject !

 
  1. Piston Engines - V12 - In-Line & Misc  
Cyl Power Power+ Thrust Thrust+ Aircraft Name L
mm
W
mm
H
mm
W
Kg
SFC Unit
V12/1650A 12cyl 1500.hp - - - - - 2000 770 1000 650 0.480 lb/hp/hr
  HS HS12Y51 12cyl 1060.hp -     MS412 Morane 1722 764 935 492 0.540 lb/hp/hr
  DB DB601A 12cyl 1100.hp -     Bf109E Emil 1722 760 1016 699 0.474 lb/hp/hr
  DB DB605A 12cyl 1475.hp -     S-99G6 Avia 2158 781 1037 756 0.350 lb/hp/hr
  JU 211P 12cyl 1480.hp -     He111H Heinkel 1768 804 1050 586 0.540 lb/hp/hr
  RR Merlin.45 12cyl 1515.hp -     HA1112 Buchon 2253 781 1016 746 0.500 lb/hp/hr
  VK VK105PF 12cyl 1360.hp -     Yak.3 = 2027 777 945 575 0.540 lb/hp/hr
  AL V1710.63 12cyl 1325.hp -     P39L1B Airacobra 2184 744 955 633 0.570 lb/hp/hr
  AL V1710.93 12cyl 1325.hp -     P63A10 Airacobra 2184 744 955 633 0.570 lb/hp/hr
  AL V1710.115 12cyl 1360.hp -     P40N40 Kittyhawk 2184 744 955 633 0.570 lb/hp/hr
V12/1650T 12cyl 1500.hp 1700.hp         2000 770 1000 650 0.480 lb/hp/hr
  VK VK107A 12cyl 1450.hp 1650.hp     S49C1A Ikarus 2027 777 945 766 0.540 lb/hp/hr
  PK V1650.7 12cyl 1490.hp 1695.hp     P51D30 Mustang 2253 761 1016 766 0.500 lb/hp/hr
  DB DB605AM 12cyl 1475.hp 1775.hp     Bf109G Gustav 2158 760 1037 756 0.350 lb/hp/hr
  DB DB605DC 12cyl 1475.hp 1975.hp     Me309C Calderic 2158 760 1037 756 0.350 lb/hp/hr
  JU 213E 12cyl 1285.hp 1507.hp     Ta152 = 2266 ?? ?? 941 0.540 lb/hp/hr
  VK VK107A 12cyl 1450.hp 1650.hp     Yak-9U Frank 2027 777 945 766 0.540 lb/hp/hr
  AL V1710.117 12cyl 1355.hp 1800.hp     P63C05 Kingcobra 2180 781 958 633 0.570 lb/hp/hr
  AL V1710.111 12cyl 1475.hp 1600.hp     P38L05 Lightning 2180 781 958 633 0.570 lb/hp/hr
V12/2240A 12cyl 2000.hp                   0.420 lb/hp/hr
  RR Griffon.58 12cyl 2000.hp =     A716M3 Shakleton 2057 770 1168 900 0.420 lb/hp/hr
V12/2240T 12cyl 2000.hp 2350.hp                 0.420 lb/hp/hr
  AM AM38F 12cyl 1700.Hp =     IL10 = 2402 866 1089 ?? ?? lb/hp/hr
  DB DB603A1 12cyl 1560.Hp 1775.Hp     He219A7 Huhu 2611 830 830 909 0.474 lb/hp/hr
  DB DB603S1 12cyl 1850.Hp 2000.Hp     He177C2 Greif 2611 830 830 909 0.400 lb/hp/hr
  RR Griffon.85 12cyl 2000.Hp 2350.Hp     S474F47 Seafire 2057 770 1168 900 0.420 lb/hp/hr
H04/0090A 4cyl 90.hp                   ?? lb/hp/hr
  CT C90-8F 4cyl 90.hp =     L18C10 Grass.Hopper 725 - 589 77 - lb/hp/hr
     
  2. Piston Engines - Radials  
Cyl Power Power+ Thrust Thrust+ Aircraft Name L
mm

mm
-
mm
W
Kg
SFC Unit
R28/3500A 28cyl 3500.hp                   0.315 lb/hp/hr
PW R4360.59 28cyl 3500.hp =     C97A Stratolifter 2451 1397   1755 0.400 lb/hp/hr
PW R4360.59 28cyl 3500.hp =     KC97G Stratotanker 2451 1397   1755 0.400 lb/hp/hr
= R4360.B6 28cyl 3500.hp =     B377 Stratocruiser 2451 1397   1755 0.400 lb/hp/hr
R28/4300T 28cyl 4300.hp       C-97M Astrolifter       1800 0.264 lb/hp/hr
   " 28cyl "         K-97M Astrotanker       "   "   "  
   " 28cyl "         F-377 Astrotanker       "   "   "  
PW R4360.51.VDT 28cyl 4300.hp =     B54A Ultrafortress 2451 1397   1755 0.400 lb/hp/hr
= = .hp =     = = = = = = = lb/hp/hr
= = = .hp =     = = = =   = = lb/hp/hr
= = .hp =     = = = = = = = lb/hp/hr
= = = .hp =     = = = =   = = lb/hp/hr
     
  3. Turboprop Engines  
- Power Power+ Thrust Thrust+ Aircraft Name L
mm

mm
-
mm
W
Kg
SFC Unit
T3825 - 3875.hp         Gannet.AS7         0.590 lb/hp/hr
AS ASMD4 - 3875.hp =     = Gannet.AEW3 2597 1341   984 0.800 lb/hp/hr
    - .hp                   - lb/hp/hr
=   - .hp =     = = = =   = = lb/hp/hr
    - .hp                   - lb/hp/hr
=   - .hp =     = = = =   = = lb/hp/hr
   
  4. Jet Engines  
- Power Power+ Thrust Thrust+ Aircraft Name L
mm

mm
-
mm
W
Kg
SFC Unit
Jxx/2270A - 2270.lbf                   0.964 lb/hp/hr
BR Or.3/803 - 2270.lbf =     G91R = 1961 823   375 1.080 lb/hp/hr
BR Or.2/703 - 2270.lbf =     HF24 Marut 1854 823   359 1.057 lb/hp/hr
BR Or.5/500 - 2270.lbf =     C119 C119 1918 823   409 0.964 lb/hp/hr
  - .lbf                   - lb/hp/hr
=   - .lbf =     = = = =   = = lb/hp/hr
  - .lbf                   - lb/hp/hr
=   - .lbf =     = = = =   = = lb/hp/hr
     
  5. Rocket Engines  
Engine ID - Power Power+ Thrust Thrust+ Aircraft Name L
mm

mm
-
mm
W
Kg
SFC Unit
    .lbf                   - lb/hp/hr
= =   .lbf =     = = = =   = = lb/hp/hr
    .lbf                   - lb/hp/hr
= =   .lbf =     = = = =   = = lb/hp/hr
    .lbf                   - lb/hp/hr
= =   .lbf =     = = = =   = = lb/hp/hr
  -  
  Abbreviations used in this document for Engine Manufacturers (alphabetical by abbreviation)  
AC Avro-Canada HS Hispano-Suiza SH Shvetsov
AL Allison IV Ivchenko SM SNECMA
AM Mikulin JU Junkers ST STAL
AR Argus KZ Kuznetzov SW Swenska
AS Armstrong-Siddeley LK Lyulka TD Teledyne
BM BMW MA Malesice TM Turbomeca
BR Bristol MO Motorlet TU Tumanski
CT Continental PW Pratt & Whitney VD Vedeneyev
DB Daimler-Benz PK Packard VK Klimov
DH De Havilland PN Pirna WH Westinghouse
GE General Electric RR Rolls-Royce WR Wright
HE Heinkel
     
  ___________