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Martin Baker Mk4 Ejection seat

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Size: 6.6006 MB   - MartinBakerMk4-PACKAGEV102.zip - Platform: Indy

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viper99, Sweden, Member since 02/01/2009

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(ID 5669619)
Martin Baker Mk4 - PACKAGE V102

OBJ8 for X-Plane 8 & 9
Tags: 3d

Martin Baker Mk4 ejection seat V1.00 OBJ8 for X-Plane 8 & 9

This is a Payware version:

If you hold an illegal copy of this PACKAGE please purchase a license to our site http:viggenxfiles.se. Price is only 2.99!!

Release date: 01/2008

Compatible with Windows, Mac and Linux.

Free of known virus.

Author: Greg Sainz
Produced by: Viggenxfiles.se // Greg Sainz and Erik Norberg

Built with Blender 2.42
Approx 110k polygons.

Please refer to end-user license for more information regarding rights attached to the use of this PACKAGE.

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Content
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The zip PACKAGE includes:

"objects" folder
- MK4.obj OBJ8 3D object of the Martin Baker ejection seat with pilot for X-Plane 8 & 9.
- Mk4.png Textures of the Martin Baker ejection seat with pilot (French AdA insignia).

"blender file" folder
- Mk4.blend Original 3D source file in Blender 2.42 format.


"Alternate RAF texture" folder
- Mk4.png Textures of the Martin Baker ejection seat with pilot (Brit RAF insignia). Switchable with the default french texture.
- tuto.jpg Quick visual tip to customize easily texture map, change pilot name and flag.


"Mk4 Pics" folder
- Slide show of the Mk4 ejection seat in Blender, X-plane and Plane Maker.



- "Martin Baker Mk4 Plane Maker show room file.acf" ACF dummy file to let you make a turn around of the Martin Baker ejection seat object
through Plane Maker 8 interface.


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PACKAGE Installation
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--> Quick install:


- Decompress the PACKAGE.
- From the Objects folder copy-paste the Mk4.obj and Mk4.png files in the X-system/aircraft/fighter/"aircraft_name"/objects folder of your choice.
- Run Plane Maker and from the misc obj sub-menu load the Mk4.obj object. Then set X,Y,Z OBJ's coordinates and finally save your aircraft.
- Run X-Plane and have fun.


--> Cockpit Object custom install

You can also merge the Mk4 ejection seat with your own cockpit.obj 3D creation.
In that case I highly recommend you to use, as a work base, the Blender source file Mk4.blend.

Rules to modify the PACKAGE and to distribute such a modified work are defined in the end-user license subsections 1 and 2.


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MB-Mk4 History & design
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Information from: http://www.ejectorseats.co.uk/mba.html:


"With the advent of a new type of aircraft known as the light fighter it became increasingly important to reduce the weight of the ejection seat.
At the same time it was essential that the reduction in weight should not impair the operation and efficiency of the seat in any way.
The construction of the Mk4 seat although retaining the essential components of its predecessors, was therefore considerably modified.

The basic 80 feet per second ejection gun was retained, having been proved to be sufficient for all current requirements, as was the Duplex drogue system
deployed by the half second time delay drogue gun, together with a 1 ½ second time-release unit.
The conventional type of guide rail was eliminated and superseded by channel members mounted on the sides of the ejection gun.
Steel slipper pads mounted on the seat beams located the seat in position in the channels and guided it out of the aircraft on ejection.
The seat structure consisted of a framework of two side beams bridged by three cross members, this framework supporting the seat pan and the drogue
container: the drogue gun and the time-release unit being mounted on the side beams. The top cross beam took the full thrust of the ejection gun and
contained the seat latch mechanism for locking the seat to the ejection gun.
The centre cross member served as the attachment point for the shoulder harness whilst the lower member provided an anchorage for the seat height adjusting
mechanism. Although fitted primarily with the face screen firing control, an alternative firing handle was fitted in the leading face of the seat pan.
This enabled the occupant to eject when conditions of g precluded the use of the face screen handles.

The comfort of the seat was considerably improved by the design of the parachute pack and dinghy pack alongside that of the seat, instead of trying to use
the existing safety equipment.
The parachute pack was a back-type, horseshoe in shape, and mounted high on the back of the seat in the best position for automatic deployment together
with a high degree of comfort.
The parachute harness was redesigned to combine with it the safety harness all in one, with only one quick-release fitting which was fastened by
the occupant when strapping in the seat, and remained fastened throughout any subsequent ejection until released by the occupant at the conclusion of
the parachute descent.
Thus combined harness was attached to the seat by two locks in the rear of the seat pan and another lock in the back oh the seat at shoulder height.
The locks being released by a redesigned time-release unit at the correct instant after ejection, through a linkage system installed in the seat.
The locks could also be operated manually in the event of failure of the time-release unit by a manual separation lever on the seat.
This arrangement of the parachute and harness was also fitted to some of the later Mk. 3 seats. Later Mk4 seats were fitted with a snubbing in the
top lock and release lever which permitted the occupant to lean in the seat but ensured that he was held firmly in the event of an ejection or a crash
landing. A number of variations of survival pack were designed by Martin-Baker according to the various requirements of the Air force concerned,
but all embodied the principle of seat cushion and container for dinghy and survival equipment.
The seat cushion was designed to give maximum comfort and filled with resilient padding slow to return to its original form after compression,
hereby helping to absorb the acceleration forces imposed during ejection.


The Mk4 series is generally considered to be the first Second Generation seat"

Production start year: 1957

Speed for ejection: from 90 to 600Kts
Main chute : Irvin I24
Weight: around 80 kg
Ejection speed : around 24m/s


Mk4 seats have been fitted to some 35 different types of aircraft mainly European.
Here are some:

- Fiat G 91.
- Mirage III-5 family except for some of the latest evolutions, clones and variants.
- Mirage IV
- Early Mirage F1-C (later equipped with Mk10).
- Early Sepecat Jaguar (later equipped with Mk10).
- Sea Vixen
- EE Lightning
- Etendard IV
- Saab J35 Draken
etc...



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Quick tip to customize the pilot
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