Snao G's

[rcaerobob at cox.net]

Not if I avoid a pitch break, and use aggressive aileron/rudder to ensure that it is a rapid BARREL ROLL!!!
(It will score just as well)  There's a LOT less "G" in a Barrel Roll.
<VBG>
> 
> From: "Tim Taylor" <twtaylor at ftc-i.net>
> Date: 2005/01/27 Thu PM 02:32:05 EST
> To: <discussion at nsrca.org>
> Subject: Re: RE: Snao G's
> 
> You do everytime you fly the reverse Avalanche :)
> ----- Original Message -----
> From: <rcaerobob at cox.net>
> To: <discussion at nsrca.org>
> Sent: Thursday, January 27, 2005 1:57 PM
> Subject: Re: RE: Snao G's
> 
> 
> > Yeaop.  That works out to about 147 lba (assuming a 10.5lb plane)
> distributed on that 7/8" dia wing tube, with complete concentration of the
> G's likely at the fuse/wing root intersection, with some load distribution
> laterally, but I'd bet not much.
> >
> > How many of us ever "test" our wing sockets to 150 lbs!!!!
> > >
> > > From: "Michael Laggis" <fishgod at pobox.mtaonline.net>
> > > Date: 2005/01/27 Thu PM 01:51:34 EST
> > > To: <discussion at nsrca.org>
> > > Subject: RE: Snao G's
> > >
> > > Very interesting.
> > >
> > > Michael Laggis
> > >
> > >   _____
> > >
> > > From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]
> On
> > > Behalf Of Earl Haury
> > > Sent: Thursday, January 27, 2005 9:40 AM
> > > To: Discussion List, NSRCA
> > > Subject: Snao G's
> > >
> > >
> > > FWIW, I took a quick look at some snap G's yesterday. Equipment was a
> Quique
> > > YAK (140 size) fitted with an Eagle Tree Systems datalogger with G
> sensor. I
> > > only gathered data from one flight - so take that into consideration.
> > >
> > > Flat and level pos snaps @ (nominally) 100mph = 13G, dropping the speed
> to
> > > 70mph = 7G. (A normal pull to vertical @ 100mph = 7G.)
> > >
> > > An Avalanche with a neg snap at the top measured -5G @ 50mph.
> > >
> > > A Rev Avalanche with a pos snap at the bottom measured 13G @ 95mph.
> (Masters
> > > maneuver - intentionally flown fast.)
> > >
> > > An Avalanche from the top (push - F05) with a neg snap and a half at the
> > > bottom measured -14G @ 90mph.
> > >
> > > (I normally measure around 5G on upline and downline snaps with my
> Partner.)
> > >
> > > All snaps were executed with rapid / high degree elevator lead and %
> > > reduction of elevator during rotation.
> > >
> > > I may look at this further as the mood strikes. As expected, controlling
> > > speed into snaps is easier on your airplane. None of the observed loads
> (in
> > > my opinion) should damage a well constructed aerobatic model (wouldn't
> want
> > > to ride in it though).
> > >
> > > Earl
> > >
> > >
> >
> > Bob Pastorello, El Reno, OK, USA
> > rcaerobob at cox.net
> > www.rcaerobats.net
> >
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> >
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> 

Bob Pastorello, El Reno, OK, USA
rcaerobob at cox.net
www.rcaerobats.net

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