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For the owners of the big, expensive and hard to find DTU books ;D

Mirage III/5/50
The external fuel tank with bomb carrying capability.

I've found references to several variants :
RPK 10
RPK 12 (iirc... or 13.. )
RPK 17

Anyone knows more about them ?

The early versions had the fore and aft release units not staggered. Usable only for bombs with a certain
length to prevent collision of them with the landing gear covers on the insides.
Later versions had the forward inside release unit moved forward to fix that limitation.

Bump

MATRA RPK :

-RPK 10 : https://www.aviationsmilitaires.net/v2/ ... /1123.html
http://www.checksix-fr.com/downloads/fa ... ageIII.pdf
-RPK 11 : 500 litres carburant + 4 bombes de 250 kg (la bible 4, page 201)
-RPK 17 : Réservoir supplémentaire d’une contenance de 500 litres et permettant l’emport de 4 charges allant des 125 kg aux MK82 de 500 livres normales ou SNAKEYE. Celui-ci est fixé en point interne sur mirage M5F directement sans intermédiaire. Il existe un modèle spécifique gauche RPK-17G et un droit RPK-17D
http://petaf-shop.e-monsite.com/pages/page.html
-RPK ? : RPK-? (~500/600 l fuel+ 36*68 mm rokets + 3* Durandal or 4*500 lbs bombs)
http://www.checksix-fr.com/downloads/fa ... ageIII.pdf
-? : http://www.1001modellini.it/accessori-p ... hera-.html

As I see it now, it is:
RPK-10/11 ( difference ? ) seem to be the early variant where the two forward-mounted bomb-racks were placed side-by-side.
RPK-17 is the modified variant with the two forward bomb-racks mounted "in-line", with the respective inboard rack moved forwards.
This caused the specific left and right ( RPK-17G / RPK-17D ) variants.
That change was necessary to allow the loading of longer bombs ( Mk82 and similar ) without interference of the forward inboard bombs with the
main landing gear.
It was also possible to load heavier stores ( 400 kg class ) on the outboard racks ( 2 bombs max per RPK )

The last .. RPK ? , Ive seen photos of it, it looks like a "Super JL-100", a big tank with a 36-shot rocket launcher .
I think that thing was never bought by anyone of the Mirage operators.