German EMW. A.9 / A.10
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Michel Van said:i found this year ago in internet
i think this is real
because it show a 6 x A4 engine with nozzle
Orionblamblam said:It's a fairly silly concept. It'd be vastly easier to simply have six separate engines than to try to gang six engines together, and have them exhaust into a common nozzle.
Now, if the six engines were, instead, ganged *around* a common nozzle, that'd form an aerospike, and might be worth doing (but probably not for an ICBM).
Michel Van said:Orionblamblam said:It's a fairly silly concept. It'd be vastly easier to simply have six separate engines than to try to gang six engines together, and have them exhaust into a common nozzle.
Now, if the six engines were, instead, ganged *around* a common nozzle, that'd form an aerospike, and might be worth doing (but probably not for an ICBM).
your absolute Right !
this was a Idea by walter Thiel
the common nozzle look logical if you use jet vane for Control the rocket flight
but Thiel cont could not finish his work
he was killed during bomberraid on Penemunde august 1943
Justo Miranda said:Tandem venturi !
agricola64 said:i once read (and if i can rmember the source i will post it) that the development of the fuel injection system of the A-4 engine was such a pain in the ass that it was decided - to reduce development time - to use the existing a-4 engines as "fuel injectors" / preburners for the much larger engine of the a-9/a-10
Grzesio said:It was not a simple common nozzle for six engines - there was an additional low pressure combustion chamber formed by the main nozzle.
agricola64 said:a question to archipepe drawings ---
i always understood the the engine of the A10 to consist of a number of A4 engines (as "preburners" / injectors - probably running overly lean and fat alternately) exhausting into a mixing / main combustion chamber ..
if that understanding is correct, i believe the size of the "preburners" of the A10 engine is wrong when compared with the A4 engine of the A9 ..