Re: Advanced V1's
- From: "Malcom \"Mal\" Reynolds" <atlas-bugged@xxxxxxxxxxxxxxx>
- Date: Fri, 25 Sep 2009 11:50:44 -0700
In article
<f0153a3c-8b48-46e3-ac8f-23a584a8c16b@i4
g2000prm.googlegroups.com>,
eunometic@xxxxxxxxxxxx wrote:
On Sep 24, 4:38 am, "Malcom \"Mal\" Reynolds" <atlas-
bug...@xxxxxxxxxxxxxxx> wrote:
Was their any room for improvement?
Could they be scaled up, made to go
faster or further?
There were a couple of programs.
There were development programs at both BMW and Porsche for disposable
turbo-jet versions. These were to double the range, simplify starting
and launch procedures as well the lack of vibration was expected to
significantly improve accuracy due to the interference of the
vibrations with the compass and odometer which was simply a prop
driving a 30:1 gearbox with a nut on a threaded rod opperating the
cutout switches.
The BMW version, known as the P.3307 (A BMW project number) had a mild
steel hollow turbine blade design capable of a life of 2 hours. The
Porsche version which had the RLM designation 109-005 had a geared
first stage compressor, which sounds complicated for a dispossable
systems but it was thought to help efficiency and provode for shedding
of ice. In the Porsche version air through the turbines was not from
the compressor but simply ram air. The compressors were impulse type
axials becuase these were easier to produce than centrifugals or
reaction type axials.
The above of course never got implemented though work had started at
Porche. Ideas that did get implemented was the abillity to fly dog
leg course (a mid flight course change). This was to prevent the
enemy from back tracking the flight path of several missiles to their
launch point. Some versions had reduced warheads with extended tanks
designed to improve both range and over target speed. These must have
been quite difficult to intercept except in a dive. V1 speed kept
improving as the germansrefined the design and manufacture of the
weapon and some were doing around 420mph, which is quite large at low
altitude.
Most V1 launches involved the launch of several V1 with tracking
becons. These were to be used to determin wind drift and help confirm
the missiles were reaching the target area. Initially only 2% or so
received these becons but towards the end of the campaign nearly 50%
had them. This suggest that the Germans were suspecting the double
cross system. Appart from wind drift, the becons probably helped
determin whether the missiles were getting to the target area and
where they were getting shot down.
A guided version was to use a coded transponder to send back a
distance pulse on a different frequency similar to fighter IFF or the
EGON blind bombin system or the British Oboe. A course correction
would be coded and sent back to a device with an endless loop of
magentic tape with 5 read/write heads upon which multiple commands
would need to be ocrrelated. In this way the system could get mid
course updates and be extremely secure against jamming. Accuracy was
supposed to be within 1km, so a CEP of about 500m I expect.
I suspect it migh have been fitted with the FuG 101a radar altimeter,
a simple device cheap enough to form a basis of the marabu proximity
fuse could also have been used to allow the weapon very low altitude
penetration.
The V1 was officially known as the Fiesler Fi 103. Its cover name was
"Kirschkern" or cherrystone as well it had the deceptive name of FZG
76 (Flug Ziel Geraet 76) which means anti aircraft targeting device.
The Term V1 was applied by Goebells and stood for "Vergeltunss" waffe
which means 'reprisal weapon'. It was thought that bombardment of
British citicies would force about end to the carpet bombing of German
cities hence the terminology.
Thanks
.
- References:
- Advanced V1's
- From: Malcom \"Mal\" Reynolds
- Re: Advanced V1's
- From: eunometic
- Advanced V1's
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