Head Speed Measurment

[Boris]

How do I measure the head speed of my Raptor 30? (Think cheap, very
cheap)

Thanks.

[david]

Borrow tacho and tape to fuz. Read whilst on ground.
Borrow distant reading tacho and read whilst flying.
Fit governor.


D


"Boris" <Boris4321@yahoo.com> wrote in message
news:YgYwb.7501$9O5.146@fed1read06...
> How do I measure the head speed of my Raptor 30? (Think cheap, very
> cheap)
>
> Thanks.
>
>

[david]

Borrow tacho and tape to fuz. Read whilst on ground.
Borrow distant reading tacho and read whilst flying.
Fit governor.


D


"Boris" <Boris4321@yahoo.com> wrote in message
news:YgYwb.7501$9O5.146@fed1read06...
> How do I measure the head speed of my Raptor 30? (Think cheap, very
> cheap)
>
> Thanks.
>
>

[H.J.]

Get a paper disk with a slot cut in it to spin at 1200 rpm. When the heli
blades appear stationary when viewed through the spinning disk, the blades
are clocking 1200 RPM. Vary paper disk RPM to desired target RPM.



"Boris" <Boris4321@yahoo.com> wrote in message
news:YgYwb.7501$9O5.146@fed1read06...
> How do I measure the head speed of my Raptor 30? (Think cheap, very
> cheap)
>
> Thanks.
>
>

[H.J.]

Get a paper disk with a slot cut in it to spin at 1200 rpm. When the heli
blades appear stationary when viewed through the spinning disk, the blades
are clocking 1200 RPM. Vary paper disk RPM to desired target RPM.



"Boris" <Boris4321@yahoo.com> wrote in message
news:YgYwb.7501$9O5.146@fed1read06...
> How do I measure the head speed of my Raptor 30? (Think cheap, very
> cheap)
>
> Thanks.
>
>

[David]

Fit ultra cheap cycle speedo (wireless) and you have everything you need -
well it needs a little maths to work out the speed in RPM, but actually it's
not that difficult.
David

"david" <david_perry@btconnect.com> wrote in message
news:bq28gs$p7o$1@sparta.btinternet.com...
> Borrow tacho and tape to fuz. Read whilst on ground.
> Borrow distant reading tacho and read whilst flying.
> Fit governor.
>
>
> D
>
>
> "Boris" <Boris4321@yahoo.com> wrote in message
> news:YgYwb.7501$9O5.146@fed1read06...
> > How do I measure the head speed of my Raptor 30? (Think cheap, very
> > cheap)
> >
> > Thanks.
> >
> >
>
>

[David]

Fit ultra cheap cycle speedo (wireless) and you have everything you need -
well it needs a little maths to work out the speed in RPM, but actually it's
not that difficult.
David

"david" <david_perry@btconnect.com> wrote in message
news:bq28gs$p7o$1@sparta.btinternet.com...
> Borrow tacho and tape to fuz. Read whilst on ground.
> Borrow distant reading tacho and read whilst flying.
> Fit governor.
>
>
> D
>
>
> "Boris" <Boris4321@yahoo.com> wrote in message
> news:YgYwb.7501$9O5.146@fed1read06...
> > How do I measure the head speed of my Raptor 30? (Think cheap, very
> > cheap)
> >
> > Thanks.
> >
> >
>
>

[Mike]

>Subject: Re: Head Speed Measurment
>From: "H.J." wenonaliar@yahoo.com
>Date: 26/11/03 17:30 GMT Standard Time
>Message-id: <vs9o5gi5b0157d@corp.supernews.com>
>
>Get a paper disk with a slot cut in it to spin at 1200 rpm. When the heli
>blades appear stationary when viewed through the spinning disk, the blades
>are clocking 1200 RPM. Vary paper disk RPM to desired target RPM.
>
Ok..i understand the theory, how exactly do you spin a paper disc at 1200 rpm
on the flying field?

I'm intrigued....

[Mike]

>Subject: Re: Head Speed Measurment
>From: "H.J." wenonaliar@yahoo.com
>Date: 26/11/03 17:30 GMT Standard Time
>Message-id: <vs9o5gi5b0157d@corp.supernews.com>
>
>Get a paper disk with a slot cut in it to spin at 1200 rpm. When the heli
>blades appear stationary when viewed through the spinning disk, the blades
>are clocking 1200 RPM. Vary paper disk RPM to desired target RPM.
>
Ok..i understand the theory, how exactly do you spin a paper disc at 1200 rpm
on the flying field?

I'm intrigued....

[H.J.]

If you can build a freakin heli, you sure as hell should be able to build a
spinning disk.


"Mike" <mikespruce99@aol.comnospam> wrote in message
news:20031126183930.09973.00001037@mb-m01.aol.com...
> >Subject: Re: Head Speed Measurment
> >From: "H.J." wenonaliar@yahoo.com
> >Date: 26/11/03 17:30 GMT Standard Time
> >Message-id: <vs9o5gi5b0157d@corp.supernews.com>
> >
> >Get a paper disk with a slot cut in it to spin at 1200 rpm. When the heli
> >blades appear stationary when viewed through the spinning disk, the
blades
> >are clocking 1200 RPM. Vary paper disk RPM to desired target RPM.
> >
> Ok..i understand the theory, how exactly do you spin a paper disc at 1200
rpm
> on the flying field?
>
> I'm intrigued....

[Harry Spillett]

surely you will need a tacho to make the disk rotate at 1200 RPM! why not
use this on the heli.

H.J. <wenonaliar@yahoo.com> wrote in message
news:vscirp45gn2774@corp.supernews.com...
> If you can build a freakin heli, you sure as hell should be able to build
a
> spinning disk.
>
>
> "Mike" <mikespruce99@aol.comnospam> wrote in message
> news:20031126183930.09973.00001037@mb-m01.aol.com...
> > >Subject: Re: Head Speed Measurment
> > >From: "H.J." wenonaliar@yahoo.com
> > >Date: 26/11/03 17:30 GMT Standard Time
> > >Message-id: <vs9o5gi5b0157d@corp.supernews.com>
> > >
> > >Get a paper disk with a slot cut in it to spin at 1200 rpm. When the
heli
> > >blades appear stationary when viewed through the spinning disk, the
> blades
> > >are clocking 1200 RPM. Vary paper disk RPM to desired target RPM.
> > >
> > Ok..i understand the theory, how exactly do you spin a paper disc at
1200
> rpm
> > on the flying field?
> >
> > I'm intrigued....
>
>

[Andy Man]

You will need a friend with a stop watch to help you do this..but think this
is probably the cheapest method!

1. Tape some highly visible tape on one rotor blade.
2. Get the blades up to speed.
3. Start blinking your eyes as quickly as possible!
4. When the blade with the tape looks as though it is stationary, start the
stop watch! Time for one minute...

.......and the amount of times you blink your eyes is the rpm of the
rotors!!!

.... Simple yet effective!

..........remember to stop blinking afterwards!

.............Well you did ask for the the cheapest method....and you don't
even need a paper disc!


"Harry Spillett" <harry.spillett@bigfoot.com> wrote in message
news:bq5u71$ue2$1@news6.svr.pol.co.uk...
> surely you will need a tacho to make the disk rotate at 1200 RPM! why not
> use this on the heli.
>
> H.J. <wenonaliar@yahoo.com> wrote in message
> news:vscirp45gn2774@corp.supernews.com...
> > If you can build a freakin heli, you sure as hell should be able to
build
> a
> > spinning disk.
> >
> >
> > "Mike" <mikespruce99@aol.comnospam> wrote in message
> > news:20031126183930.09973.00001037@mb-m01.aol.com...
> > > >Subject: Re: Head Speed Measurment
> > > >From: "H.J." wenonaliar@yahoo.com
> > > >Date: 26/11/03 17:30 GMT Standard Time
> > > >Message-id: <vs9o5gi5b0157d@corp.supernews.com>
> > > >
> > > >Get a paper disk with a slot cut in it to spin at 1200 rpm. When the
> heli
> > > >blades appear stationary when viewed through the spinning disk, the
> > blades
> > > >are clocking 1200 RPM. Vary paper disk RPM to desired target RPM.
> > > >
> > > Ok..i understand the theory, how exactly do you spin a paper disc at
> 1200
> > rpm
> > > on the flying field?
> > >
> > > I'm intrigued....
> >
> >
>
>

[Andy Man]

You will need a friend with a stop watch to help you do this..but think this
is probably the cheapest method!

1. Tape some highly visible tape on one rotor blade.
2. Get the blades up to speed.
3. Start blinking your eyes as quickly as possible!
4. When the blade with the tape looks as though it is stationary, start the
stop watch! Time for one minute...

.......and the amount of times you blink your eyes is the rpm of the
rotors!!!

.... Simple yet effective!

..........remember to stop blinking afterwards!

.............Well you did ask for the the cheapest method....and you don't
even need a paper disc!


"Harry Spillett" <harry.spillett@bigfoot.com> wrote in message
news:bq5u71$ue2$1@news6.svr.pol.co.uk...
> surely you will need a tacho to make the disk rotate at 1200 RPM! why not
> use this on the heli.
>
> H.J. <wenonaliar@yahoo.com> wrote in message
> news:vscirp45gn2774@corp.supernews.com...
> > If you can build a freakin heli, you sure as hell should be able to
build
> a
> > spinning disk.
> >
> >
> > "Mike" <mikespruce99@aol.comnospam> wrote in message
> > news:20031126183930.09973.00001037@mb-m01.aol.com...
> > > >Subject: Re: Head Speed Measurment
> > > >From: "H.J." wenonaliar@yahoo.com
> > > >Date: 26/11/03 17:30 GMT Standard Time
> > > >Message-id: <vs9o5gi5b0157d@corp.supernews.com>
> > > >
> > > >Get a paper disk with a slot cut in it to spin at 1200 rpm. When the
> heli
> > > >blades appear stationary when viewed through the spinning disk, the
> > blades
> > > >are clocking 1200 RPM. Vary paper disk RPM to desired target RPM.
> > > >
> > > Ok..i understand the theory, how exactly do you spin a paper disc at
> 1200
> > rpm
> > > on the flying field?
> > >
> > > I'm intrigued....
> >
> >
>
>

[Beav]

"H.J." <wenonaliar@yahoo.com> wrote in message
news:vscirp45gn2774@corp.supernews.com...
> If you can build a freakin heli, you sure as hell should be able to build
a
> spinning disk.

I need to build a rev counter capable of reading the revs on a piece of
spinning paper. Any ideas?


--
Beav


Please note my E-mail address is "beavis dot original at ntlworld dot com"
(with the obvious changes)

Beavisland now lives at
www.beavisoriginal.co.uk

[Beav]

"H.J." <wenonaliar@yahoo.com> wrote in message
news:vscirp45gn2774@corp.supernews.com...
> If you can build a freakin heli, you sure as hell should be able to build
a
> spinning disk.

I need to build a rev counter capable of reading the revs on a piece of
spinning paper. Any ideas?


--
Beav


Please note my E-mail address is "beavis dot original at ntlworld dot com"
(with the obvious changes)

Beavisland now lives at
www.beavisoriginal.co.uk

[vince e]

"Beav" <beavis.original@ntloxoworld.com> wrote in message
news:vsh0cvk1vaje08@news.supernews.com...
>
> "H.J." <wenonaliar@yahoo.com> wrote in message
> news:vscirp45gn2774@corp.supernews.com...
> > If you can build a freakin heli, you sure as hell should be able to
build
> a
> > spinning disk.
>
> I need to build a rev counter capable of reading the revs on a piece of
> spinning paper. Any ideas?

that put tears in my eyes
>
>
> --
> Beav
>
>
> Please note my E-mail address is "beavis dot original at ntlworld dot com"
> (with the obvious changes)
>
> Beavisland now lives at
> www.beavisoriginal.co.uk
>
>

[vince e]

"Beav" <beavis.original@ntloxoworld.com> wrote in message
news:vsh0cvk1vaje08@news.supernews.com...
>
> "H.J." <wenonaliar@yahoo.com> wrote in message
> news:vscirp45gn2774@corp.supernews.com...
> > If you can build a freakin heli, you sure as hell should be able to
build
> a
> > spinning disk.
>
> I need to build a rev counter capable of reading the revs on a piece of
> spinning paper. Any ideas?

that put tears in my eyes
>
>
> --
> Beav
>
>
> Please note my E-mail address is "beavis dot original at ntlworld dot com"
> (with the obvious changes)
>
> Beavisland now lives at
> www.beavisoriginal.co.uk
>
>

[H.J.]

ha ha ha

People keep cracking jokes that my spinning disk idea still needs a method
of counting revs, but there are many motors that spin specific revs: Isn't
there a 'dremel' motor that's controlled with a digital RPM control? And ALL
stepper motors work at very specific RPMs specified by the
stepper-controller.

I never expected people to use freaking hairdryer motors or something like
that - although it would still be easy to do with a debounced switch
circuit, a commuter arm, and a 99 cent digital counter chip...





"Beav" <beavis.original@ntloxoworld.com> wrote in message
news:vsh0cvk1vaje08@news.supernews.com...
>
> "H.J." <wenonaliar@yahoo.com> wrote in message
> news:vscirp45gn2774@corp.supernews.com...
> > If you can build a freakin heli, you sure as hell should be able to
build
> a
> > spinning disk.
>
> I need to build a rev counter capable of reading the revs on a piece of
> spinning paper. Any ideas?
>
>
> --
> Beav
>
>
> Please note my E-mail address is "beavis dot original at ntlworld dot com"
> (with the obvious changes)
>
> Beavisland now lives at
> www.beavisoriginal.co.uk
>
>

[H.J.]

ha ha ha

People keep cracking jokes that my spinning disk idea still needs a method
of counting revs, but there are many motors that spin specific revs: Isn't
there a 'dremel' motor that's controlled with a digital RPM control? And ALL
stepper motors work at very specific RPMs specified by the
stepper-controller.

I never expected people to use freaking hairdryer motors or something like
that - although it would still be easy to do with a debounced switch
circuit, a commuter arm, and a 99 cent digital counter chip...





"Beav" <beavis.original@ntloxoworld.com> wrote in message
news:vsh0cvk1vaje08@news.supernews.com...
>
> "H.J." <wenonaliar@yahoo.com> wrote in message
> news:vscirp45gn2774@corp.supernews.com...
> > If you can build a freakin heli, you sure as hell should be able to
build
> a
> > spinning disk.
>
> I need to build a rev counter capable of reading the revs on a piece of
> spinning paper. Any ideas?
>
>
> --
> Beav
>
>
> Please note my E-mail address is "beavis dot original at ntlworld dot com"
> (with the obvious changes)
>
> Beavisland now lives at
> www.beavisoriginal.co.uk
>
>

[Beav]

"H.J." <wenonaliar@yahoo.com> wrote in message
news:vt9v1f303smt47@corp.supernews.com...
> ha ha ha
>
> People keep cracking jokes that my spinning disk idea still needs a method
> of counting revs, but there are many motors that spin specific revs: Isn't
> there a 'dremel' motor that's controlled with a digital RPM control? And
ALL
> stepper motors work at very specific RPMs specified by the
> stepper-controller.
>
> I never expected people to use freaking hairdryer motors or something
like
> that - although it would still be easy to do with a debounced switch
> circuit, a commuter arm, and a 99 cent digital counter chip...

I think I'd use a commutator arm. Less ravelling then :-)


--
Beav


Please note my E-mail address is "beavis dot original at ntlworld dot com"
(with the obvious changes)

Beavisland now lives at
www.beavisoriginal.co.uk

[Beav]

"H.J." <wenonaliar@yahoo.com> wrote in message
news:vt9v1f303smt47@corp.supernews.com...
> ha ha ha
>
> People keep cracking jokes that my spinning disk idea still needs a method
> of counting revs, but there are many motors that spin specific revs: Isn't
> there a 'dremel' motor that's controlled with a digital RPM control? And
ALL
> stepper motors work at very specific RPMs specified by the
> stepper-controller.
>
> I never expected people to use freaking hairdryer motors or something
like
> that - although it would still be easy to do with a debounced switch
> circuit, a commuter arm, and a 99 cent digital counter chip...

I think I'd use a commutator arm. Less ravelling then :-)


--
Beav


Please note my E-mail address is "beavis dot original at ntlworld dot com"
(with the obvious changes)

Beavisland now lives at
www.beavisoriginal.co.uk