----- Original Message -----
From: "Rob Housman" <RobH@hyperion-ef.com>
Subject: Re: Angle of Attack indicators
>>snip<<
> For us AOA is of no use at cruise but it is very useful at low airspeed,
> especially in the pattern/circuit. Anyone not convinced should peruse,
for
> example, http://www.monmouth.com/~jsd/how/htm/aoa.html and
> http://www.boeing.com/commercial/aeromagazine/aero_12/attack.html
Rob et al,
Quite agree with the tenor of the articles, with but one nit to
pick. Typically Boeing (see your second URL), they refer to the lift-dumpers
on top of the wing as Speed Brakes. They very well may brake by lift
control, but the term does refer to a family of panels which have no effect
on lift at all. These speed brakes are hinged panels at the wing trailing
edge which go vertical upon deployment - and thus affect lift not one whit.
See deH Vampire/Venom for samples.
Boeing (you-know-what-I-mean specialists) should vet their
writings by peer review - not in-house editting.
Otherwise, a neat reference! Thank you!
Ferg A064
> Best regards,
>
> Rob Housman
> A070
>
> -----Original Message-----
> From: forum-owner@europaclub.org.uk
> Behalf Of Alan D Stewart
> Subject: Re: Angle of Attack indicators
>
>
> I'd like to say that I personally agree with a previous posting on this
> subject.
>
> I'm certainly not saying mistakes don't happen, and I acknowledge that
> if builders want to add
> more and more accessories, particularly with safety in mind, then that's
> their perogative.
>
> The Europa I believe, falls into a category of aircraft which should be
> built light, and VFR flying should as straightforward as possible.
>
> I think that there's a trade off between warning mechanisms, complexity,
> weight and safety.
>
> There is a well accepted statistical theory called 'risk compensation'
> which, when applied to the highway, accounts for the propensity of road
> drivers to take greater risks when presented with increased safety
> measures introduced by car manufacturers.
>
> Sometimes I wonder if having a extra safety system installed may make me
> complacent enough to overlook simple visual checks and neglect basic
> pilot skills ?
>
> Alan
>
> -----Original Message-----
> From: forum-owner@europaclub.org.uk
> Subject: Re: Angle of Attack indicators
>
>
> Folks,
>
> Trigear GOURO
>
> I have the RMI instrument which as well as giving Rate of climb, TAS,
> CAS,
> Alt alarms and all kinds of other things also gives low airspeed speed
> alarms. I have found it to be more than adequate and tends only to alarm
> in
> the very last part of the flair, by which time the rear wheels are about
> touching the ground and only once or twice on rotate if I pull it off
> too
> early. (only did it to try it you understand, I never pull the plane off
> the
> floor unless I am "OVER" 55 knots)
>
>
> I don't have stall strips fitted and cant get my head around fitting
> some
> when it feels fine as it is. With greatest respect I watch my speed
> like a
> hawk as I know it keeps me alive. Do too many warning systems offer us a
> false sense of security and offer us the opportunity to relax our
> piloting
> skills when we need them?
>
> Regards
>
> Kev T
>
>
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