What's flap damper durometer got to do with 3D?

[Joe Bill]

I'm fairly new to helicopters and am transitioning into 3D maneuvers. The
Raptor 50V2 comes with 70 durometer flap dampers, but I see on rotor.com
(Singapore) that they have Thunder Tiger 80 durometer flap dampers "for 3D"
(PV0382). I'm familiar with durometer values from roller blade wheels, but
was wondering if anyone can explain why flap dampers that are harder are
better suited for 3D?

Is it simply that the harder rubber allows less "flex" in the spindle shaft
thus resulting in less slop in the main blades so maneuvers are "crisper"?

Thanks.

Jim

[Beav]

"Joe Bill" <golferd@swbell.net> wrote in message
news:VLLJb.531$sB6.220445842@newssvr11.news.prodig y.com...
> I'm fairly new to helicopters and am transitioning into 3D maneuvers. The
> Raptor 50V2 comes with 70 durometer flap dampers, but I see on rotor.com
> (Singapore) that they have Thunder Tiger 80 durometer flap dampers "for
3D"
> (PV0382). I'm familiar with durometer values from roller blade wheels,
but
> was wondering if anyone can explain why flap dampers that are harder are
> better suited for 3D?
>
> Is it simply that the harder rubber allows less "flex" in the spindle
shaft
> thus resulting in less slop in the main blades so maneuvers are "crisper"?

That about sums it up Jim, but that's not the REAL reason for going to
harder dampers. The real reason is so that when you fly a seriously
aggressive manoeuvre with lots of negative pitch and back stick involved,
the harder dampers just stop the blades from clouting the boom. Granted they
DO add a little "crispness" to the response, but not a lot.



--
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

[Rhodesst]

>The real reason is so that when you fly a seriously
>aggressive manoeuvre with lots of negative pitch and back stick involved,
>the harder dampers just stop the blades from clouting the boom.

Yup! Clouting the boom = BAD! :-D

Fly Safe,
Steve R.

[Beav]

"Rhodesst" <rhodesst@aol.com> wrote in message
news:20040104201744.15352.00002610@mb-m03.aol.com...
> >The real reason is so that when you fly a seriously
> >aggressive manoeuvre with lots of negative pitch and back stick involved,
> >the harder dampers just stop the blades from clouting the boom.
>
> Yup! Clouting the boom = BAD! :-D

But VERY amusing when it's not your heli :-))


--
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

[Carl Farrington]

Beav wrote:
> "Rhodesst" <rhodesst@aol.com> wrote in message
> news:20040104201744.15352.00002610@mb-m03.aol.com...
>>> The real reason is so that when you fly a seriously
>>> aggressive manoeuvre with lots of negative pitch and back stick
>>> involved, the harder dampers just stop the blades from clouting the
>>> boom.
>>
>> Yup! Clouting the boom = BAD! :-D
>
> But VERY amusing when it's not your heli :-))

You're just pure evil you are :-P

[Beav]

"Carl Farrington" <carl@000compsup000.net.invalid> wrote in message
news:btemeu$1if$1$8302bc10@news.demon.co.uk...
> Beav wrote:
> > "Rhodesst" <rhodesst@aol.com> wrote in message
> > news:20040104201744.15352.00002610@mb-m03.aol.com...
> >>> The real reason is so that when you fly a seriously
> >>> aggressive manoeuvre with lots of negative pitch and back stick
> >>> involved, the harder dampers just stop the blades from clouting the
> >>> boom.
> >>
> >> Yup! Clouting the boom = BAD! :-D
> >
> > But VERY amusing when it's not your heli :-))
>
> You're just pure evil you are :-P

But easily amused :-)


--
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