Misplaced Pages

Front-engine, rear-wheel-drive layout: Difference between revisions

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
Browse history interactively← Previous editContent deleted Content addedVisualWikitext
Revision as of 17:50, 24 January 2023 edit2601:196:180:8d80:a034:3394:fb39:12ef (talk) Uncited/OR/illogical/self-contradictory← Previous edit Latest revision as of 18:34, 23 November 2024 edit undoVola31 (talk | contribs)28 editsmNo edit summary 
(37 intermediate revisions by 21 users not shown)
Line 1: Line 1:
{{Short description|Automobile layout}} {{Short description|Automobile layout}}
{{Multiple issues|
⚫ {{Single source|date=April 2019}}]
{{original research|date=January 2023}}
{{more references|date=January 2023}}
{{Single source|date=April 2019}}
}}
⚫ ]


A '''front-engine, rear-wheel-drive layout''' '''(FR)''' is an ] with an ] and ], connected via a ]. This arrangement, with the engine straddling the front axle, was the traditional automobile layout for most of the 20th century.<ref>{{cite web|url=http://www.sae.org/technical/papers/2006-01-1339|title=Development of a New Hybrid Transmission for RWD Car|publisher=www.sae.org|access-date=2008-01-11|archive-url=https://web.archive.org/web/20090207074723/http://www.sae.org/technical/papers/2006-01-1339|archive-date=2009-02-07|url-status=dead}}</ref>It is also used in ] ] and ]. A '''front-engine, rear-wheel-drive layout''' '''(FR)''', also called '''Systeme Panhard'''<ref name="R-MH">{{cite web |title=The Nostalgia of Forgotten Gods: Panhard & Levassor, France, 1886-1967 |url=https://roarington.com/media-house/stories/the-nostalgia-of-forgotten-gods-panhard-and-levassor-france-1886-1967 |website=Roarington |access-date=26 August 2024 |language=en}}</ref> is a ] with an engine in front and ], connected via a ]. This arrangement, with the engine straddling the front axle, was the traditional automobile layout for most of the pre-1950s automotive mechanical projects.<ref>{{cite web|url=http://www.sae.org/technical/papers/2006-01-1339|title=Development of a New Hybrid Transmission for RWD Car|publisher=www.sae.org|access-date=2008-01-11|archive-url=https://web.archive.org/web/20090207074723/http://www.sae.org/technical/papers/2006-01-1339|archive-date=2009-02-07|url-status=dead}}</ref> It is also used in trucks, pickups, and ] ]es and ]es.


⚫ =={{anchor|FMR layout|FMR}}Front mid-engine, rear-wheel-drive layout==
The FR layout was largely displaced in the late 20th century by the ] (FF) and ] (AWD) layouts.
⚫ [[File:Automotive diagrams 03 En.png|thumb|upright=1.25|FMR
layout, the engine is located behind the front axle]]


⚫ A '''front mid-engine, rear-wheel-drive layout''' '''(FMR)''' places the engine in the front half of the vehicle but ''behind'' the front axle, which likewise drives the rear wheels via a driveshaft. Shifting the engine's ] rearward aids in front/rear ] and reduces the ], both of which improve a vehicle's ].{{citation needed span|While the mechanical layout of an FMR is substantially the same as an FR car, the classification of some models of the same vehicle may vary as either FR or FMR depending on the length of the engine (e.g. 4-cylinder vs. 6-cylinder) and its center of mass in relation to the front axle.|reason=It is a boldface potentially contentious claim without any support.|date=January 2023}}
⚫ ==Front mid-engine, rear-wheel-drive layout==
{{anchor|FMR layout}}
⚫ ]


⚫ FMR cars are often characterized by a long hood and front wheels that are pushed forward to the corners of the vehicle, close to the front bumper. ]-style ]s often have FMR layouts, as a rear engine does not leave much space for rear seats.
⚫ A '''front mid-engine, rear-wheel-drive layout''' '''(FMR)''' places the engine in the front of the vehicle but ''behind'' the front axle, which likewise drives the rear wheels via a driveshaft. Shifting the engine's ] rearward aids in front/rear ] and reduces the ], both of which improve a vehicle's ]. While the mechanical layout of an FMR is substantially the same as an FR car, the classification of some models of the same vehicle may vary as either FR or FMR depending on the length of the engine (e.g. 4-cylinder vs. 6-cylinder) and its center of mass in relation to the front axle.{{cn}}

===Characteristics===
⚫ * FMR cars are often characterized by a long hood and front wheels that are pushed forward to the corners of the vehicle, close to the front bumper. ]-style ]s often have FMR layouts, as a rear engine does not leave much space for rear seats.
* FMR layout came standard in most pre–World War II, front-engine / rear-wheel-drive cars.


==Gallery==
<gallery> <gallery>
File:1968 AMC AMX yellow 390 auto md-er.jpg|The 390 cid V8 engine in a FR 1968 ] functionally straddles its front axle, with the centerline of the shock towers basically bisecting the center of the air cleaner

E-Type Jag 4.2-litre engine 2022.jpg|The straight-6 DOHC ] clearly sits behind the front axle of an FMR ]
File:GMLT5.JPG|All ] from the second generation (model year 1963) through the seventh generation (model year 2019) are FMR layouts as seen in the engine bay of the ]. GMLT5.JPG|All ] from the second through the seventh generation are FMR. Only ancillary aspects of this ] engine may lie above the front axle.
File:Honda F22C Engine.JPG|The ] engine sits clearly behind the top of the shock towers.
⚫ Dodge Viper Motorraum.JPG|An FMR ] showing its 8.4&nbsp;L V10 positioned behind the car’s front axle
File:Morgan 4 4 - Flickr - Alexandre Prévot (1).jpg|The ] and ] are classic "front mid-engine, rear-wheel-drive layouts".
File:Mercedes-Benz SLR McLaren engine.jpg|The engine bay of the ]. F_599_007.JPG|The ] V12 engine sitting behind the ]'s front axle.
File:2006 Maserati Quattroporte - Flickr - The Car Spy (4).jpg|The 4.2-litre V8 in the ] has FMR layout.
⚫ File:Dodge Viper Motorraum.JPG|Dodge Viper showing its 8.4l V10 positioned behind the car’s front axle
</gallery> </gallery>


== See also == ==See also==
*] *]


== References == ==References==
{{reflist}} {{reflist}}


Latest revision as of 18:34, 23 November 2024

Automobile layout
This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these messages)
This article possibly contains original research. Please improve it by verifying the claims made and adding inline citations. Statements consisting only of original research should be removed. (January 2023) (Learn how and when to remove this message)
This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.
Find sources: "Front-engine, rear-wheel-drive layout" – news · newspapers · books · scholar · JSTOR (January 2023) (Learn how and when to remove this message)
This article relies largely or entirely on a single source. Relevant discussion may be found on the talk page. Please help improve this article by introducing citations to additional sources.
Find sources: "Front-engine, rear-wheel-drive layout" – news · newspapers · books · scholar · JSTOR (April 2019)
(Learn how and when to remove this message)
FR layout

A front-engine, rear-wheel-drive layout (FR), also called Systeme Panhard is a powertrain layout with an engine in front and rear-wheel-drive, connected via a drive shaft. This arrangement, with the engine straddling the front axle, was the traditional automobile layout for most of the pre-1950s automotive mechanical projects. It is also used in trucks, pickups, and high-floor buses and school buses.

Front mid-engine, rear-wheel-drive layout

FMR layout, the engine is located behind the front axle

A front mid-engine, rear-wheel-drive layout (FMR) places the engine in the front half of the vehicle but behind the front axle, which likewise drives the rear wheels via a driveshaft. Shifting the engine's center of mass rearward aids in front/rear weight distribution and reduces the moment of inertia, both of which improve a vehicle's handling.While the mechanical layout of an FMR is substantially the same as an FR car, the classification of some models of the same vehicle may vary as either FR or FMR depending on the length of the engine (e.g. 4-cylinder vs. 6-cylinder) and its center of mass in relation to the front axle.

FMR cars are often characterized by a long hood and front wheels that are pushed forward to the corners of the vehicle, close to the front bumper. 2+2-style grand tourers often have FMR layouts, as a rear engine does not leave much space for rear seats.

Gallery

  • The 390 cid V8 engine in a FR 1968 AMC AMX functionally straddles its front axle, with the centerline of the shock towers basically bisecting the center of the air cleaner The 390 cid V8 engine in a FR 1968 AMC AMX functionally straddles its front axle, with the centerline of the shock towers basically bisecting the center of the air cleaner
  • The straight-6 DOHC XK engine clearly sits behind the front axle of an FMR Jaguar E-Type The straight-6 DOHC XK engine clearly sits behind the front axle of an FMR Jaguar E-Type
  • All Chevrolet Corvette from the second through the seventh generation are FMR. Only ancillary aspects of this Chevrolet Corvette ZR-1's engine may lie above the front axle. All Chevrolet Corvette from the second through the seventh generation are FMR. Only ancillary aspects of this Chevrolet Corvette ZR-1's engine may lie above the front axle.
  • An FMR Dodge Viper showing its 8.4 L V10 positioned behind the car’s front axle An FMR Dodge Viper showing its 8.4 L V10 positioned behind the car’s front axle
  • The F140 C V12 engine sitting behind the Ferrari 599's front axle. The F140 C V12 engine sitting behind the Ferrari 599's front axle.

See also

References

  1. "The Nostalgia of Forgotten Gods: Panhard & Levassor, France, 1886-1967". Roarington. Retrieved 26 August 2024.
  2. "Development of a New Hybrid Transmission for RWD Car". www.sae.org. Archived from the original on 2009-02-07. Retrieved 2008-01-11.
Car design
Classification
By size
Custom
Luxury
Minivan / MPV
SUV
Sports
Other
EU
Body styles
Specialized
vehicles
Propulsion
Drive wheels
Engine position
Layout
(engine / drive)
Engine configuration
(internal combustion)
Category: