metalman

I could never understand why they teach this 'why it flies stuff' that can never really be explained completely and fully to the student pilot when the teachers should be feeding the poor beggar with the skills needed to prevent them from creating smoking craters.Bit like when being back at school being taught algebra and the like (that i have never used in real life) when they should have taught me how to get a home loan or deal with the taxman.

Sorry big thumbs on an I pad Don't know how to remove itDavid

Just realized I could undo it

Sounds like any aircraft, set best glide, and don't try to stretch it, there's not an fixed wing aircraft that will glide without airspeed, I've read that account before and if I'm missing something please enlighten me. All aircraft behave differently with an engine out, my aircraft will just make the field from base, the Tigermoth I occasionally fly glides like a house brick, so does a Pitts I'm told, I've done glide approaches in an RV6 , I've also done an dead stick in a tecnam and a eurofox,,,,,and in every single aircraft if I'd let any of them get slow I'm in trouble,,,in the article the pilot mentions not trying to stretch the glide, good advice for everything from a thruster to an A380 ,,,so I hope this doesn't sound like an argument but if you've actually flown an RV6 and experienced any adverse behaviour then please post it for all of us to learn from , but if your basing this on two accidents where the pilots seemed to stall the plane at height ,then hold the stick hard back till it all stopped suddenly ,it's called ground aversion , then it's the same behaviour that's been killing pilots for decades,,,,,,,,give it a rest or come up with something that is based on more than an opinion founded on two accidents from a fleet of several thousand.

So is the horizontal stabiliser using a downforce ( due to a negative angle of attack) or is it being sucked down, because having a movable surface at the trailing edge makes Newtons law more relevant

Post deleted, this is not the place to have this discussion

The existence of an EO for strengthening the cockpit is not 'unfounded speculation', nor is the lack of elevator authority in the case of an engine-out. The 'folding' situation has been proven. If you do not wish to acknowledge relevant information, fine by me, but don't deny that information to people whose lives might be saved by knowing it.

As for the elevator story, the source of that has never stalled an RV , plenty of others have ,and they stall like any aircraft that is well designed to be sporty, I've stalled a few without any odd behaviour. A good mate would be one of the most knowledgeable pilots in Oz regarding the RV aircraft, I've discussed this with him, he's stalled them all ,engine running ,off ,turning, S&L and they recover normally. Of course if you were to fly ( or try to) any aircraft around at three knots above the stall you would find it quite a handful, 55knots? They stop flying at 50-52kias clean (49 dirty) ,,,a high decent rate would be expected, recovery is simply a matter of reducing the AoA and it flies again,,,,,just like most aircraft,,,and just like most aircraft ,if you hold the stick back the ground will arrive very quickly,,,,I AM NOT saying this is the case here, I along with most here have no idea what has happened , and would again say the blabbering theories is not only disrespectful to the deceased ,but painful for relatives and friends,

The RV6 has two known and documented problems that MAY be relevant.The first, is a known structural problem with cockpit strength, that in a crash allows the sides of the cockpit to deflect and cause the whole aircraft to fold as if hinged around the mainspar and bring the top of the panel back and crush the occupant's foreheads. Typically, once the 'fold' has happened, the aircraft flops back into a fairly normal-looking attitude; this effect was found under forensic examination to be the answer to otherwise inexplicable death. An EO was developed (in Australia) to assist in strengthening the cockpit, but even if this had been applied to this aircraft it is probable that the apparent descent angle would not have been survivable. An RV6 is not a particularly crash-worthy aircraft, and the statistics support this contention. It is nowhere near as potentially lethal as say a Lancair 240/260 or a Cirrus, but equally it is far below mainstream GA aircraft or even any Jabiru for crash survivability.

 

The second, is a lack of elevator authority in an engine-out situation that will not even allow a normal flare if under about 55 kts - the aircraft will just fly into the ground, no matter where the stick is being held.. Recovery from a low-speed stall would be absolutely impossible in an engine-out situation on the height reported.

 

Please let's not get into 'issues' here: two apparently fine, decent, loved and respected people have died from an unfortunate situation. Unlikely to have been pilot error, but due to fundamental characteristics of a particular aircraft.

He answered a question no one asked and then expects everyone to fall over themselves praising him at the foot of his plinth.Now excuse me, I'm late for a witch trial, anyone got a spare duck?

It seems to have stalled.

Mek is absorbed into the skin and some plumbers have to give plumbing away after 30 years or so. But the majority don't get effected.These days though a lot of plumbers keep the brushes from their glue pots and use them in their primer bottles and a few werks ago at work I bought a 500 ml primer, i'm sure but it could have been the Bostick brand and it actually has a foam/ sponge applicator inside. I never had side effects but around 2008 we started used brushes because a plumber on one of our work sites was told by his doctor after a blood test that he should change careers. The PVC glue contains between 30 to 60% MEK In it as well.

When I say its not as bad as peeps say. I don't want somebody the wash their hands in it and all of a sudden think they are going to die tommorrow.

Hi fellow flyers, I need to do some maintenance and need to source a small amount of MEK to work on Polyfiber finish. Anyone know a supplier in Melbourne apart from Aviaquip? Thanks

The kid up the road from where i used to live reckons there is no such thing as 'Lift'. Aircraft are sucked into the air. With his theory the negative pressure on the top of the wing is producing more of the work than the higher pressure under the wing. More suck than lift. He puts up a pretty good argument. I told him he should go work for CASA

Can we PLEASE have a "what a d1ckhead" button ,,,,,,,please !!

We'll promise to only use it on a select few

Be nice now. Being narky can prove embarrassing when you find that you are wrong.What is your point about a full range of AOA? As long as you have elevator authority why wouldn't it?

 

Most aircraft have 3 Degrees of Incidence. This is an effective AOA but fixed. If you lower the nose by 3 Degrees you will negate this. Then lower it further by the amount of upper surface camber (also effective AOA) you reach Zero Lift Pitching Angle... = No Lift. Simples...

http://ycem.com.au/contact-yvft.html

Coldstream have a flying comp with a BBQ lunch once a month ,next one is 21/09 ,check the website for more info and a brief on local ops, if you drop in look for my jigger and say g'day ,

Matty

Tullamarine?

I always thought the wings were pretty friggin important ,,,,but yeh super critical does describe them suitably!

Do our wealthy reinvest their money into building and sustaining the very infrastructure their wealth is based on?.

I'm beginning to wonder how many real people are on this site.

Besides, Bernoulli isn't irrelevant ,,,his theory on fluid dynamics is quite interesting,,,,,it has f**kall to do with wings !!!but interesting all the same

Correct, and they must not to be confused with flying saucers, which have been identified as a type of saucer.rgmwa

On the whole, I'd prefer the engine to have a scavenge pump.

Not all aircraft of my experience are best landed by the wheeler technique - including most tricycle types; they are susceptible to "wheelbarrow" type loss of control, and are best landed by the crab method.

Mmmm the wheeler -3point discussion ! At least we have a choice , and if you add the "wheeler -oh sh1t-3pointer" then there's a real variety to choose from :-)

If in doubt blame the aliens,,,,,I believe he is at this very moment somewhere in the universe sitting on a hemmeroid cushion awaiting his next session,,,,,god help him!,,,