SEPR 844 For simplicity of fuel supply, the TX2 fuel of the SEPR 841 was replaced with standard Jet TR-0 / JP-4 / JP-5 (kerosene) in the SEPR 844
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founded a pdf
it is apparently using tx2 has ignition but the main tx2 tank should be removed thus canon should still be on the plane
and it can be jettisoned at low speed
you should put this in a bug report
https://community.gaijin.net/issues/p/warthunder?from-ts=1719784800&to-ts=1738364399
they gave this to the Mirage IIIS that was just added, maybe they’ll circle back to give this to the Mirage IIIE ? might still be worth opening a bug report if there isn’t one for this issue already
The thing is, for the bug report to be accepted it need strong sources that prove that the Mirage IIIE can still use the fuel of the others fuel tanks instead of the fuel of the one that replace the guns.
Some good bug reporters like @DirectSupport might be able to help, to see if it’s possible and to provide proofs of it, if it is indeed possible for the french Mirage IIIE.
Hm, what I’ve heard is that the modification to allow the SEPR to use the Mirage’s fuel was actually a development of the Swiss Air Force and an exclusivity of the Mirage IIIS.
But then that may apply only to that modification, and doesn’t necessarily mean that others may not have developed similar modifications as well…
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i’m not sure this is strictly a swiss development though, page 2 and 4 of this document (https://ibb.ch/spl_old/news/SEPR/AIAA-90-1835.pdf) seem to suggest that the SEPR 844 motor did not require the replacing of the ammo boxes with a fuel tank, that it still used TX2 for ignition but moved that TX2 to the belly tank that is modelled ingame, between the engine and the rocket motor.
page 2 : “The SEPR 844 […] operates with nitric acid and aircraft supplied kerosene”
page 4 : “The SEPR 844 differs from the SEPR 841 by utilizing kerosene […], consequently suppressing the necessity of a specific tank, but complicating the general architecture of the propcllant feed system.”
also page 4 : “The acid tank is made with stainless steel. In the lower part of the acid tank is the TX2 (…) tank. The TX2 […] initiates the combustion.”
i also took a look at the source in the bug report for the Mirage IIIS’ rocket booster, using google lens to translate, it does mention something like “the previous SEPR configuration configuration was fed from the ‘SOUTE AVANT’ and could not carry cannons”
but it doesn’t mention specific SEPR model numbers, nor which one was “previous”.
i’ve yet to see any of a specific swiss model/order of SEPR 84, the ibb document from earlier only states, on page 8, that : " (164) SEPR 841 and (111) SEPR 844 have been […] used operationally in 6 countries : France, Lybia, Pakistan, South Africa, Spain and Switzerland."
if the swiss modified existing 844 motors to feed from the aircraft’s tanks, then this special modification isn’t documented anywhere else i’ve looked outside of the Mirage IIIS booster bug report…
but if feeding from the aircraft’s tanks is just a feature of 844 motors, then the source used the mirage IIIS bug report, could be a report on replacing 841 motors with 844 motors because the latter model doesn’t remove the guns