shags_j

Howstuffworks

by NASA. I'm sure this would help us work it out but I'm boned if I know how...

So for the physics nuts out there, are we able to quantify the effect of bernouli's principle?

Perhaps compare to the effect of AOA?

Hey all,

Was reading an article in this months Australian Pilot magazine entitled 8 common aviation myths.

The first myth basically said that Bernouli's principle was irrelevant to flight. While it does in fact exist he goes on to give a lengthy argument on why it doesn't really matter for flight.

He says that while it doesn have an effect on a wing, it is only a minor effect.

The wings are cambered, according to Austin Collins in order to acheive a greater range of AOA's and still maintain flight.

Arguments are:

1- Aircraft can fly upside down

2- Some aircraft have camber on top and bottom of wing

3- Ultralights and gliders with single surface wings (ie. no top or bottom)

4- No law of physics that says two air molecules that are seperated must meet again

5- Actual "suction" on the wing due to the principle is quite small

6- Even a flat peice of board with an appropriate angle of attack will fly.

Just wondering what everyones thoughts on this were? I grew up in aircadets and the first principle of flight we learnt was bernouli's principle. Hard to let go that it is irrelevant to flying...

Awesine thanks Ozzie.

EDIT: Awesine????? That's Awesome...

you must compare apples to apples not oranges and the safety of a flight is directly proportional to, "the airwortiness of the aircraft,the ability of the pilot and conditions in which the flight is being carried out in".Cheers,

 

Frank.

I don't think I have ever agreed with anything else as much as I agree with this.

Cheers,

Shags

I had a fire in the left wheel of a cessna once. I was taxiing for my third solo flight. My instructor took a call while I was taxiing. As I started I felt that I really had to push on the right pedal to keep it straight.

Anyway halfway down the archerfield taxiiway to 10 we smelt smoke. Jumped out and realised the brakes had ceased. That was a fun couple of hours getting that back up the taxiiway.

On a side note my Brother in law has a head set that is bluetooth compatible. Not only coudl he answer and make calls with his mobile but he could record on his bluetooth mp3 player. Expensive though (about $1300???)

I don't think anyone has said it but we all should have a will. ...

There is nothing more certain: it will be needed sometime!

Life as a sexually transmitted disease with a 100% mortality rate.

A little concerned by this thread so checked my life insurance through my fund. Because I have group cover (ie. negotiated for all members) then there are no specific exemptions per person (only exemption was suicide).

If i were to get seperate cover then that would be a different story and I may not be covered (or pay an excessive premium).

I love cirrus aircraft. Am seriously considering an Srs when tehy become available. Usable weight seems a bit low though

Good point.

I have my problems sorted. I'll just buy a Cirrus Vision when they come out (THE-JET BY CIRRUS) no problem.

All I have to do now is fix the lotto...

There's room on teh floor of the backseat. The one I used to fly would be flat out fitting a small person yet alone person and bags.

I'm glad it's currently just me and my girl...

C172P useful load = 927kg.

Macnoz: I really needed it on all occasions on the weekend. It just wouldn't do what I wanted it to. Like I said though once I got the hang of it I think I was right.

Hard to say from the other way round. IT took me probably the whole hour to get used to the controls. Keep in mind here I also haven't been up in anything for about 6 months.

The C172 is an easier plane to fly. I'm really not sure what sort of time frame it would take someone whose never flown before to get a grasp on the Jab aircraft sorry.

Like in my original post though, it really does teach you to fly "properly". I believe learning like this will increase my "airmanship" a lot more than the GA way. Having said that I am glad that I have done both.

(I know that I have not helped you in any way, my apologies ;) )

A damn good reason to go to a ctaf is that everyone is a damn sight more friendlier.

Yeah I'm on a mission to 79kg... My mum and GF are gangin up on me. After the loooonnngggg take off on saturday I was motivated as well.

I think it's more demanding than most GA aircraft (i've flown cherokee and c172 and tommohawks). But I think it really does teach you to be a good pilot. You really do need to work the ruders. But this can be a positive thing also as I believe it will lead to more finite control over the aircraft. I was working it ok by the time I landed. While my landing was a bit hard I was fairly happy with the approach.

I'm a larger chap (110kg atm but dropping) so my choice of LSA is somewhat limited. Once I drop a few kg I might try out some of the other LSA's.

Oh and paperwork was great thanks. Would have been lost without the radio calls.

Gorgeous terrain. I could have stayed up there watching all day. It really is spectacular terrain. Can't wait for my license to just go up and enjoy the flight.

Jabiru 160.

Hey all,

Thought I would share my views on change over from flying in a controlled airspace to a non-controlled space.

I have done 15 hours at archerfield including about 1 hour solo. On saturday did my first lesson at Caboolture. This was a bit of an eye opener in two ways:

AIRFIELD:

I never realised how much I relied on the tower. While you still kept a lookout for other traffic and in the circuit you would make sure you had sight of everyone else around you don't realise how much the tower does. It's actually a little nervewracking for the first few minutes (not to mention that radio calls are a little bit more involved).

I believe my airmanship will be vastly improved by flying here.

AIRCRAFT:

Admittedly it's been 3 months since my last flight but I flew like crap. The Jab controls take a little bit of getting used to (don't see the advantages of the control system personally) but even after that I was having troubles with the level of rudder controls required. I think the 172 teaches you "lazy" flying. Hopefully next lesson will see a few solo circuits and I won't be so aggravated with myself.

Anyways, just a few thoughts on the differences.

Cheers,

Shags

I might add it was hilarious seeing a little gyro taxiing.

Jabs aren't as easy to land as a PA28 warrior or C-172.

Don't say that... My first flight in a Jab tomorrow after 15 hours of 172's...

Sounds pleasant. Might have to make a trip there in the holidays next year.

I found it very interesting. Half of the time you feel they think we're a backwater community, other half of the time you get the impression the sun shines out of our collective arses....

Hey all,

Does anyone know of a list of all commercially available LSA's able to be registered under RA Aus?

For those of us looking at buying one it would make life easy to have a list with breif statistics (cost, cruise, range etc).

Cheers,

Shags

Guess I'm a little bit shocked because of the extreme emphasis on safety I had with all my instructors over the years. Keeping in mind I always learnt in ctaf conditions and have had no experience with RA style strips etc.

Awesome cheers.