Greetings

I have a 3" Public Enimy V2 which I baught without instructions.  Does 
anyone know where its CofP woud be or if it needs any nose weight?   I'm 
sure I could sim it but if the knowledge is out there I'd be gratefull.

BTW its 36" tall, wights about a pound + motor and recovery kit.  If you 
find the instructions on the public enimy web site your a better googeler 
than I !

Thanks

Halam
UKRA - EARS - Level 1 - RSO

"Halam Rose" <h@ro[deleteThis]sered.co.uk> writes:

> Greetings
>
> I have a 3" Public Enimy V2 which I baught without instructions.
> Does anyone know where its CofP woud be or if it needs any nose
> weight?  I'm sure I could sim it but if the knowledge is out there
> I'd be gratefull.
>
> BTW its 36" tall, wights about a pound + motor and recovery kit.  If
> you find the instructions on the public enimy web site your a better
> googeler than I !

Why not work it out?  Rocksim, Spacecad or VCP will do it for you if
you don't feel like hitting Barrowman yourself.

Chris
-- 
Chris Eilbeck
MARS Flight Crew                              http://www.mars.org.uk/
UKRA #1108 Level 2                                                UYB
Tripoli UK Member #9527                                          LSMR

Chris Eilbeck wrote:

> "Halam Rose" <h@ro[deleteThis]sered.co.uk> writes:
> 
> > Greetings
> > 
> > I have a 3" Public Enimy V2 which I baught without instructions.
> > Does anyone know where its CofP woud be or if it needs any nose
> > weight?  I'm sure I could sim it but if the knowledge is out there
> > I'd be gratefull.
> > 
> > BTW its 36" tall, wights about a pound + motor and recovery kit.  If
> > you find the instructions on the public enimy web site your a better
> > googeler than I !
> 
> Why not work it out?  Rocksim, Spacecad or VCP will do it for you if
> you don't feel like hitting Barrowman yourself.
> 
> Chris

Or just get the rocksim file for the 4" version off EMRR - it's all
proportional innit ;)

Halam Rose wrote:
> I have a 3" Public Enimy V2 which I baught without instructions.  Does 
> anyone know where its CofP woud be or if it needs any nose weight?   I'm 
> sure I could sim it but if the knowledge is out there I'd be gratefull.
> 
> BTW its 36" tall, wights about a pound + motor and recovery kit.  If you 
> find the instructions on the public enimy web site your a better googeler 
> than I !

I bought my kit last century, so perhaps my instructions are out of 
date; but here are scans:
  http://tinyurl.com/2b3xxq
  http://tinyurl.com/2zcnpq
  http://tinyurl.com/2lfrsd

To directly answer your question, the instructions state that the CG is 
44" from the top of the nose cone. Yes, it says the CG is there (not the 
CP). The instructions go on to warn that you should add "sufficient nose 
weight in front of the CG" depending on motor size. A bit confusing. 
Anyway, back in that last century I RockSim'd it and got a CP 
(Barrowman) at 47.5".

-- 
Steve Humphrey
(replace "spambait" with "merlinus" to respond directly to me)

"Steve Humphrey"  wrote in message

> I bought my kit last century, so perhaps my instructions are out of date; 
> but here are scans:
>  http://tinyurl.com/2b3xxq
>  http://tinyurl.com/2zcnpq
>  http://tinyurl.com/2lfrsd
>
Thanks but thats an Honest John, not the V2...

Cgeers,

Halam

"Richard Parkin" <a@b.c> wrote in message
>> > I have a 3" Public Enimy V2 which I baught without instructions.
>> > Does anyone know where its CofP woud be or if it needs any nose
>> > weight?  I'm sure I could sim it but if the knowledge is out there
>> > I'd be gratefull.

>> Why not work it out?  Rocksim, Spacecad or VCP will do it for you if
>> you don't feel like hitting Barrowman yourself.
>>
>> Chris
>
> Or just get the rocksim file for the 4" version off EMRR - it's all
> proportional innit ;)

Can I trust the kit designer to scale accuratly of could he take liberties 
and use convinient sizes?

Cheers,

Halam

Halam Rose wrote:
> Thanks but thats an Honest John, not the V2...

Well I'd try to make an excuse but ... "I'm an idiot" says it best. :-(

-- 
Steve Humphrey
(replace "spambait" with "merlinus" to respond directly to me)

Halam,

I got the other 3" V2 off of Ebay so I will be doing a VCP for it at some 
point. I would be very wary of sclaing the CP from another V2 - even a PE 
kit or even relying on the 3" kit instructions. If yours is exactly the same 
as mine you will find the model is very unscale and the fins have more 
trailing edge sweep than the real V2 - also the kit is longer than scale due 
to the long Ace nose cones the kit uses.

I can let you have the VCP data once I sim it but I can't see it being for a 
month or two given my other commitments at the moment.

Regards,

Dave D. UKRA L2 #1287
"Halam Rose" <h@ro[deleteThis]sered.co.uk> wrote in message 
news:03Kdi.8883$3j1.7135@newsfe6-gui.ntli.net...
>
> "Richard Parkin" <a@b.c> wrote in message
>>> > I have a 3" Public Enimy V2 which I baught without instructions.
>>> > Does anyone know where its CofP woud be or if it needs any nose
>>> > weight?  I'm sure I could sim it but if the knowledge is out there
>>> > I'd be gratefull.
>
>>> Why not work it out?  Rocksim, Spacecad or VCP will do it for you if
>>> you don't feel like hitting Barrowman yourself.
>>>
>>> Chris
>>
>> Or just get the rocksim file for the 4" version off EMRR - it's all
>> proportional innit ;)
>
> Can I trust the kit designer to scale accuratly of could he take liberties 
> and use convinient sizes?
>
> Cheers,
>
> Halam
>

"David Driver"  wrote in message 
news:HkLdi.1301$H61.769@newsfe4-win.ntli.net...
> Halam,
>
> I got the other 3" V2 off of Ebay so I will be doing a VCP for it at some 
> point. I would be very wary of sclaing the CP from another V2 - even a PE 
> kit or even relying on the 3" kit instructions. If yours is exactly the 
> same as mine you will find the model is very unscale and the fins have 
> more trailing edge sweep than the real V2 - also the kit is longer than 
> scale due to the long Ace nose cones the kit uses.
>
> I can let you have the VCP data once I sim it but I can't see it being for 
> a month or two given my other commitments at the moment.
>

Congratulations on your ebay win, mine lookes great with red nose cone, 
yellow body tube and blue fin can.
If I get it rocksimed before you I'll do likewise...

Cheers,

Halam

"Steve Humphrey"  wrote in message 
news:v9Kdi.298$ME5.170@newsfe12.lga...
> Halam Rose wrote:
>> Thanks but thats an Honest John, not the V2...
>
> Well I'd try to make an excuse but ... "I'm an idiot" says it best. :-(

Cheer up, we all benefit from peer review :-)

"David Driver"  wrote in message 
news:HkLdi.1301$H61.769@newsfe4-win.ntli.net...
> Halam,
>
> I got the other 3" V2 off of Ebay so I will be doing a VCP for it at some 
> point. I would be very wary of sclaing the CP from another V2 - even a PE 
> kit or even relying on the 3" kit instructions. If yours is exactly the 
> same as mine you will find the model is very unscale and the fins have 
> more trailing edge sweep than the real V2 - also the kit is longer than 
> scale due to the long Ace nose cones the kit uses.
>
> I can let you have the VCP data once I sim it but I can't see it being for 
> a month or two given my other commitments at the moment.
>
I did rocksim on the built rockit, and got 3 CofPs because Rocksim has a 
choice of three algorithums
Barrowman 16.6"
Rocksim 20.6"
Cardbaord Cutout, way to far aft, nonsence reult.
Flight details approx 5-600' on an F and 4 sec delay is about right.

Remeber our discussion about the accuracy of Rocksim when fins are applied 
to transitions?  Help yourself to a pinch of salt.

Cheers,

Halam

"Halam Rose" <h@ro[deleteThis]sered.co.uk> wrote in message 
news:QVXdi.2038$_14.945@newsfe2-gui.ntli.net...
>
> I did rocksim on the built rockit, and got 3 CofPs because Rocksim has a 
> choice of three algorithums
> Barrowman 16.6"
> Rocksim 20.6"
> Cardbaord Cutout, way to far aft, nonsence reult.
> Flight details approx 5-600' on an F and 4 sec delay is about right.
>
> Remeber our discussion about the accuracy of Rocksim when fins are applied 
> to transitions?  Help yourself to a pinch of salt.
>
> Cheers,
>
> Halam
>
Thanks for that information - I'll still do a VCP once I get time - it is 
likely to be more dodgey than Rocksim with the fin shape and transition but 
additional data can't do any harm.

Dave

Halam Rose wrote:
> I have a 3" Public Enimy V2 which I baught without instructions.  Does 
> anyone know where its CofP woud be or if it needs any nose weight?   I'm 
> sure I could sim it but if the knowledge is out there I'd be gratefull.
> 
> BTW its 36" tall, wights about a pound + motor and recovery kit.  If you 
> find the instructions on the public enimy web site your a better googeler 
> than I !

I bought my kit last century, so perhaps my instructions are out of 
date; but here are scans:
  http://tinyurl.com/2b3xxq
  http://tinyurl.com/2zcnpq
  http://tinyurl.com/2lfrsd

To directly answer your question, the instructions state that the CG is 
44" from the top of the nose cone. Yes, it says the CG is there (not the 
CP). The instructions go on to warn that you should add "sufficient nose 
weight in front of the CG" depending on motor size. A bit confusing. 
Anyway, back in that last century I RockSim'd it and got a CP 
(Barrowman) at 47.5".

-- 
Steve Humphrey
(replace "spambait" with "merlinus" to respond directly to me)

"Steve Humphrey"  wrote in message

> I bought my kit last century, so perhaps my instructions are out of date; 
> but here are scans:
>  http://tinyurl.com/2b3xxq
>  http://tinyurl.com/2zcnpq
>  http://tinyurl.com/2lfrsd
>
Thanks but thats an Honest John, not the V2...

Cgeers,

Halam

"Richard Parkin" <a@b.c> wrote in message
>> > I have a 3" Public Enimy V2 which I baught without instructions.
>> > Does anyone know where its CofP woud be or if it needs any nose
>> > weight?  I'm sure I could sim it but if the knowledge is out there
>> > I'd be gratefull.

>> Why not work it out?  Rocksim, Spacecad or VCP will do it for you if
>> you don't feel like hitting Barrowman yourself.
>>
>> Chris
>
> Or just get the rocksim file for the 4" version off EMRR - it's all
> proportional innit ;)

Can I trust the kit designer to scale accuratly of could he take liberties 
and use convinient sizes?

Cheers,

Halam

Halam Rose wrote:
> Thanks but thats an Honest John, not the V2...

Well I'd try to make an excuse but ... "I'm an idiot" says it best. :-(

-- 
Steve Humphrey
(replace "spambait" with "merlinus" to respond directly to me)

Halam,

I got the other 3" V2 off of Ebay so I will be doing a VCP for it at some 
point. I would be very wary of sclaing the CP from another V2 - even a PE 
kit or even relying on the 3" kit instructions. If yours is exactly the same 
as mine you will find the model is very unscale and the fins have more 
trailing edge sweep than the real V2 - also the kit is longer than scale due 
to the long Ace nose cones the kit uses.

I can let you have the VCP data once I sim it but I can't see it being for a 
month or two given my other commitments at the moment.

Regards,

Dave D. UKRA L2 #1287
"Halam Rose" <h@ro[deleteThis]sered.co.uk> wrote in message 
news:03Kdi.8883$3j1.7135@newsfe6-gui.ntli.net...
>
> "Richard Parkin" <a@b.c> wrote in message
>>> > I have a 3" Public Enimy V2 which I baught without instructions.
>>> > Does anyone know where its CofP woud be or if it needs any nose
>>> > weight?  I'm sure I could sim it but if the knowledge is out there
>>> > I'd be gratefull.
>
>>> Why not work it out?  Rocksim, Spacecad or VCP will do it for you if
>>> you don't feel like hitting Barrowman yourself.
>>>
>>> Chris
>>
>> Or just get the rocksim file for the 4" version off EMRR - it's all
>> proportional innit ;)
>
> Can I trust the kit designer to scale accuratly of could he take liberties 
> and use convinient sizes?
>
> Cheers,
>
> Halam
>

"David Driver"  wrote in message 
news:HkLdi.1301$H61.769@newsfe4-win.ntli.net...
> Halam,
>
> I got the other 3" V2 off of Ebay so I will be doing a VCP for it at some 
> point. I would be very wary of sclaing the CP from another V2 - even a PE 
> kit or even relying on the 3" kit instructions. If yours is exactly the 
> same as mine you will find the model is very unscale and the fins have 
> more trailing edge sweep than the real V2 - also the kit is longer than 
> scale due to the long Ace nose cones the kit uses.
>
> I can let you have the VCP data once I sim it but I can't see it being for 
> a month or two given my other commitments at the moment.
>

Congratulations on your ebay win, mine lookes great with red nose cone, 
yellow body tube and blue fin can.
If I get it rocksimed before you I'll do likewise...

Cheers,

Halam

"Steve Humphrey"  wrote in message 
news:v9Kdi.298$ME5.170@newsfe12.lga...
> Halam Rose wrote:
>> Thanks but thats an Honest John, not the V2...
>
> Well I'd try to make an excuse but ... "I'm an idiot" says it best. :-(

Cheer up, we all benefit from peer review :-)

"David Driver"  wrote in message 
news:HkLdi.1301$H61.769@newsfe4-win.ntli.net...
> Halam,
>
> I got the other 3" V2 off of Ebay so I will be doing a VCP for it at some 
> point. I would be very wary of sclaing the CP from another V2 - even a PE 
> kit or even relying on the 3" kit instructions. If yours is exactly the 
> same as mine you will find the model is very unscale and the fins have 
> more trailing edge sweep than the real V2 - also the kit is longer than 
> scale due to the long Ace nose cones the kit uses.
>
> I can let you have the VCP data once I sim it but I can't see it being for 
> a month or two given my other commitments at the moment.
>
I did rocksim on the built rockit, and got 3 CofPs because Rocksim has a 
choice of three algorithums
Barrowman 16.6"
Rocksim 20.6"
Cardbaord Cutout, way to far aft, nonsence reult.
Flight details approx 5-600' on an F and 4 sec delay is about right.

Remeber our discussion about the accuracy of Rocksim when fins are applied 
to transitions?  Help yourself to a pinch of salt.

Cheers,

Halam

"Halam Rose" <h@ro[deleteThis]sered.co.uk> wrote in message 
news:QVXdi.2038$_14.945@newsfe2-gui.ntli.net...
>
> I did rocksim on the built rockit, and got 3 CofPs because Rocksim has a 
> choice of three algorithums
> Barrowman 16.6"
> Rocksim 20.6"
> Cardbaord Cutout, way to far aft, nonsence reult.
> Flight details approx 5-600' on an F and 4 sec delay is about right.
>
> Remeber our discussion about the accuracy of Rocksim when fins are applied 
> to transitions?  Help yourself to a pinch of salt.
>
> Cheers,
>
> Halam
>
Thanks for that information - I'll still do a VCP once I get time - it is 
likely to be more dodgey than Rocksim with the fin shape and transition but 
additional data can't do any harm.

Dave

"David Driver"  wrote in message 
news:HkLdi.1301$H61.769@newsfe4-win.ntli.net...
> Halam,
>
> I got the other 3" V2 off of Ebay so I will be doing a VCP for it at some 
> point. I would be very wary of sclaing the CP from another V2 - even a PE 
> kit or even relying on the 3" kit instructions. If yours is exactly the 
> same as mine you will find the model is very unscale and the fins have 
> more trailing edge sweep than the real V2 - also the kit is longer than 
> scale due to the long Ace nose cones the kit uses.
>
> I can let you have the VCP data once I sim it but I can't see it being for 
> a month or two given my other commitments at the moment.
>

Congratulations on your ebay win, mine lookes great with red nose cone, 
yellow body tube and blue fin can.
If I get it rocksimed before you I'll do likewise...

Cheers,

Halam

"Steve Humphrey"  wrote in message 
news:v9Kdi.298$ME5.170@newsfe12.lga...
> Halam Rose wrote:
>> Thanks but thats an Honest John, not the V2...
>
> Well I'd try to make an excuse but ... "I'm an idiot" says it best. :-(

Cheer up, we all benefit from peer review :-)

"David Driver"  wrote in message 
news:HkLdi.1301$H61.769@newsfe4-win.ntli.net...
> Halam,
>
> I got the other 3" V2 off of Ebay so I will be doing a VCP for it at some 
> point. I would be very wary of sclaing the CP from another V2 - even a PE 
> kit or even relying on the 3" kit instructions. If yours is exactly the 
> same as mine you will find the model is very unscale and the fins have 
> more trailing edge sweep than the real V2 - also the kit is longer than 
> scale due to the long Ace nose cones the kit uses.
>
> I can let you have the VCP data once I sim it but I can't see it being for 
> a month or two given my other commitments at the moment.
>
I did rocksim on the built rockit, and got 3 CofPs because Rocksim has a 
choice of three algorithums
Barrowman 16.6"
Rocksim 20.6"
Cardbaord Cutout, way to far aft, nonsence reult.
Flight details approx 5-600' on an F and 4 sec delay is about right.

Remeber our discussion about the accuracy of Rocksim when fins are applied 
to transitions?  Help yourself to a pinch of salt.

Cheers,

Halam

"Halam Rose" <h@ro[deleteThis]sered.co.uk> wrote in message 
news:QVXdi.2038$_14.945@newsfe2-gui.ntli.net...
>
> I did rocksim on the built rockit, and got 3 CofPs because Rocksim has a 
> choice of three algorithums
> Barrowman 16.6"
> Rocksim 20.6"
> Cardbaord Cutout, way to far aft, nonsence reult.
> Flight details approx 5-600' on an F and 4 sec delay is about right.
>
> Remeber our discussion about the accuracy of Rocksim when fins are applied 
> to transitions?  Help yourself to a pinch of salt.
>
> Cheers,
>
> Halam
>
Thanks for that information - I'll still do a VCP once I get time - it is 
likely to be more dodgey than Rocksim with the fin shape and transition but 
additional data can't do any harm.

Dave

"Halam Rose" <h@ro[deleteThis]sered.co.uk> wrote in message 
news:QVXdi.2038$_14.945@newsfe2-gui.ntli.net...
>
> I did rocksim on the built rockit, and got 3 CofPs because Rocksim has a 
> choice of three algorithums
> Barrowman 16.6"
> Rocksim 20.6"
> Cardbaord Cutout, way to far aft, nonsence reult.
> Flight details approx 5-600' on an F and 4 sec delay is about right.
>
> Remeber our discussion about the accuracy of Rocksim when fins are applied 
> to transitions?  Help yourself to a pinch of salt.
>
> Cheers,
>
> Halam
>
Thanks for that information - I'll still do a VCP once I get time - it is 
likely to be more dodgey than Rocksim with the fin shape and transition but 
additional data can't do any harm.

Dave

"Halam Rose" <h@ro[deleteThis]sered.co.uk> wrote in message 
news:QVXdi.2038$_14.945@newsfe2-gui.ntli.net...
>
> I did rocksim on the built rockit, and got 3 CofPs because Rocksim has a 
> choice of three algorithums
> Barrowman 16.6"
> Rocksim 20.6"
> Cardbaord Cutout, way to far aft, nonsence reult.
> Flight details approx 5-600' on an F and 4 sec delay is about right.
>
> Remeber our discussion about the accuracy of Rocksim when fins are applied 
> to transitions?  Help yourself to a pinch of salt.
>
> Cheers,
>
> Halam
>
Thanks for that information - I'll still do a VCP once I get time - it is 
likely to be more dodgey than Rocksim with the fin shape and transition but 
additional data can't do any harm.

Dave

"Halam Rose" <h@ro[deleteThis]sered.co.uk> wrote in message 
news:QVXdi.2038$_14.945@newsfe2-gui.ntli.net...
>
> I did rocksim on the built rockit, and got 3 CofPs because Rocksim has a 
> choice of three algorithums
> Barrowman 16.6"
> Rocksim 20.6"
> Cardbaord Cutout, way to far aft, nonsence reult.
> Flight details approx 5-600' on an F and 4 sec delay is about right.
>
> Remeber our discussion about the accuracy of Rocksim when fins are applied 
> to transitions?  Help yourself to a pinch of salt.
>
> Cheers,
>
> Halam
>
Thanks for that information - I'll still do a VCP once I get time - it is 
likely to be more dodgey than Rocksim with the fin shape and transition but 
additional data can't do any harm.

Dave

"Halam Rose" <h@ro[deleteThis]sered.co.uk> wrote in message 
news:QVXdi.2038$_14.945@newsfe2-gui.ntli.net...
>
> I did rocksim on the built rockit, and got 3 CofPs because Rocksim has a 
> choice of three algorithums
> Barrowman 16.6"
> Rocksim 20.6"
> Cardbaord Cutout, way to far aft, nonsence reult.
> Flight details approx 5-600' on an F and 4 sec delay is about right.
>
> Remeber our discussion about the accuracy of Rocksim when fins are applied 
> to transitions?  Help yourself to a pinch of salt.
>
> Cheers,
>
> Halam
>
Thanks for that information - I'll still do a VCP once I get time - it is 
likely to be more dodgey than Rocksim with the fin shape and transition but 
additional data can't do any harm.

Dave

"Halam Rose" <h@ro[deleteThis]sered.co.uk> wrote in message 
news:QVXdi.2038$_14.945@newsfe2-gui.ntli.net...
>
> I did rocksim on the built rockit, and got 3 CofPs because Rocksim has a 
> choice of three algorithums
> Barrowman 16.6"
> Rocksim 20.6"
> Cardbaord Cutout, way to far aft, nonsence reult.
> Flight details approx 5-600' on an F and 4 sec delay is about right.
>
> Remeber our discussion about the accuracy of Rocksim when fins are applied 
> to transitions?  Help yourself to a pinch of salt.
>
> Cheers,
>
> Halam
>
Thanks for that information - I'll still do a VCP once I get time - it is 
likely to be more dodgey than Rocksim with the fin shape and transition but 
additional data can't do any harm.

Dave