Am Montag, 18. August 2003 21:53 schrieben Sie:
> On Mon, 18 Aug 2003 21:31:48 +0200, you wrote:
> >Am Montag, 18. August 2003 21:29 schrieben Sie:
> >> ----- Original Message -----
> >> From: "Floret Morgenstern" <desert@FOL.DYNDNS.ORG>
> >>
> >> > You don't really need a fast updating GPS receiver... You could us=
e a
> >> > combination of slow GPS receiver, magnetic Field sensor (electroni=
c
> >>
> >> compass)
> >>
> >> > and an acceleration logging sytem to keep track of your position a=
t
> >> > any
> >>
> >> time!
> >>
> >> > You could connect these different sensor types with a PIC ;-) and =
let
> >> > it stuff out all the positioning data at a rate adequate for your
> >> > needs!
> >>
> >> Well, actually that's what I'm doing. I'm working on an IMU/AHRS tha=
t
> >> uses gyros and accelerometers to keep track of position in the short
> >> term, backed up by GPS for long-term navigation.
> >> I was hoping that I could find a multi-hertz GPS for not too much mo=
re
> >> than a 1Hz unit so that I can get away with cheaper
> >> gyros/accelerometers, and achieve better accuracy.
> >>
> >> - Robert
> >
> >Well, sorry! Most times Hobbyists have to do things the hard way!
> >I'm asking myself what kind of vehicle you are building, that you need
> > gyros. I hope you don't try to build a mid range cruise missile ;-))
>
> Someone already is....:
>
> http://www.interestingprojects.com/cruisemissile/


I know that link already... I found it some time ago, when i was looking =
for=20
easy to build rocket style engines. :-))
That was the reason for me to ask, thought you'd probably try to build on=
e,=20
too... I found that pulse jets are interesting to experiment with, but ar=
e of=20
no use for my current long time project, that I bear in mind (Computer=20
controlled aircraft with jet propulsion).=20
I'm currently thinking about switching from jet propulsion to some kind o=
f=20
electro impeller (triangle of impellers to have the ability for perfect=20
flight control and vertical take off.)

MfG,
Do.Pe.

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