[AR] Re: Video of HTPB/Al/perchlorate solids

  • From: Henry Spencer <hspencer@xxxxxxxxxxxxx>
  • To: Arocket List <arocket@xxxxxxxxxxxxx>
  • Date: Sat, 26 Mar 2016 00:33:32 -0400 (EDT)

On Fri, 25 Mar 2016, John Schilling wrote:

Wasn't the Scud actually a V2 derivative in the first place?
Only in spirit. The Scud, even in its original R-11/Scud-A incarnation, is a more advanced design ... and pure inertial guidance rather than riding a radio beam during the boost phase.

Actually, most production A4s were pure inertial too. Early ones used a radio signal from the ground to control engine cutoff, but that was soon changed to autonomous control by an integrating accelerometer. Direction control was inertial from the start.

The final design had an optional radio receiver for an overlapping-beam system to provide an azimuth update late in boost, and about the last 25% of the production run included the receiver. However, it did not see much use, because production of the beam transmitters ran very late and few of the launch units had them.

Henry

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