I want one . .

[sross]

. . once he has finished flight testing.

Australian built Hoverbike prepares for takeoff - Image 1 of 12


This would be the way to arrive at your dive site in style!

 

[foxfish]

looks cool but we need a vid?

 

[Oldsarge]

It would be nice but all the youtubes are just slide shows of the same photos. Maybe in a while . . .


unless he crashes it!

 

[speargunhunter]

that'll be cool if it works..............until he crashes.:crutch:crutch

 

[Andrew the fish]

design is flawed from start - he will never achieve stable flight, neither maneurability. He's just a dreamer, not engineer.

 

[Oldsarge]

That's a pretty blanket statement. Could you provide a few specifics backing up your position?

 

[Andrew the fish]

That's a pretty blanket statement. Could you provide a few specifics backing up your position?

I guess I could, but why. UNSTABLE - end of story. I bet he is busy scratching his head and incorporating some analog computer or fly by wire sheat these days...

 

[sross]

Hi Andrew,

I presume you're saying it would be unstable because once the rider sits in the seat the centre of gravity will be above the axis of force from the 2 engines?

I don't know whether the engine below brings the centre of gravity down enough.

 

[ReefTroll]

I guess I could, but why. UNSTABLE - end of story. I bet he is busy scratching his head and incorporating some analog computer or fly by wire sheat these days...

Wow.... just, wow. Why give an explanation? Because you have made extremely base-less claims for a start.

"By day, Malloy works in the mechanical design of airborne and ground based hyperspectral sensors at an optical engineering company in Australia."

I'd say he's possibly a little more than a dreamer.... But who am I to argue that they "typically" employ an engineer in an engineering position at an engineering company...

 

[Andrew the fish]

Wow.... just, wow. Why give an explanation? Because you have made extremely base-less claims for a start.

"By day, Malloy works in the mechanical design of airborne and ground based hyperspectral sensors at an optical engineering company in Australia."

I'd say he's possibly a little more than a dreamer.... But who am I to argue that they "typically" employ an engineer in an engineering position at an engineering company...

:martial

well I guess there are engineers and then there are engineers.

Now think a little, is it so much to ask. What airplanes do, or what helicopters do when their engine fail? Don't be quick, if you are not flying then at least bother to google some basics. Now imagine falling from the sky like a rock on this shiite.

That is, if he manages to hook up all the gyro's and other fly-by-wire gyzmo and make it actually to work. He already mentioned the risk of tipping over. This kind of problems do not exist on R22, or Cessna 152 or any other ugly, boring aircraft that are dream to fly.

Ask yourself another question - why does he think he will have his bike type-certified and going into commercial production within a year? Maybe he doesn't know how it works, all the certification and such. And production too. Well, there is a beauty in boldness, but not when I see moronic design being drooled over by bunch of by-standers.

Now think (yet again) about innocent investors, because not one serious insitutional investor will bother, it will be all little guys, like you and me, investing their real and hard earned money into this joke. And he is talking about looking for investors.

Keep going, another question yet. Why didn't he manage to squeeze one little fuzzy picture of his bike flying, without being strapped to the ground? This is a big deal, publicity opportunity, not too many get such coverage more than once. So why didn't he bother to show off a little? Or maybe he couldn't?

He asked in that article some real engineers to join and help him to solve some problems - tell me why. No, no no, you think and then you tell me. Most amateur built aircraft do not need fluid dynamics computations, its all empirical, pre-calculated design choices. Wing load and lift and such things are simple to compute. Just don't tell me his bike doesn't have any wings - that will make you look real silly.

 

[ReefTroll]

Well you've certainly proved your immense capacity to make assumptions, so congratulations for at least being clear on SOMETHING.

You have also proven to be the most condascending poster on the forums.

I do however applaud your over-use of fly-by-wire terminology and would like to point out that a car doesn't contain the ability to drive due to the choice of a cable or hydraulic clutch...

You're right though, what WOULD I know about aircraft basics, the Royal Australian Air Force is merely a fraud and we never had any aircraft at all. Nor have I ever studied them. Obviously, thanks for brining this to my attention.

I think his design is magic, and a quick trip to a children's hobby store will show you plenty of things that share it's theories quite successfully. But lets all keep designing your beloved Cessna as a way forward for aeronautical design.

I will now post a few of my favourite objects that apparently had something to do with each other.

 

[Andrew the fish]

reeftrol, those pictures are entertainy but hardly related to our beloved hoverbike. We already know that ducted fan is efficient enough and has its place.

Now, can we somehow ( Sarge you too) please discuss the design, not my style. He thinks his bike would be a sports category aircraft and you know what it means - 20 hrs of training and off you go. To me this looks more like a monster that is inherehlntly unstable, hardly controllable high performance flying machine, with no redunda:crutchncy and generally unsurvivable for a pilot. And all that was just for"coolness" sake.

 

[ReefTroll]

I still don't see where you can guarantee its instability etc.

PS. The F117a can NOT fly. Think about that.

 

[foxfish]

Here is a bit of vid [PHOTOS + VIDEO] Hoverbike Invented in Australia Can Go 175 Mile per Hour

 

[Poida]

Andrew the Fish.

This appears to work on the same principle as a bicycle. If you try and sit on a bicycle upright without moving you will fall over. So, why don't you fall over when it is going along?

The bicycle stays upright due to gyroscopic action of the wheels, which holds the cyclist in an upright position.

The gyroscopic action of the fans will hold the hover bike horizontal and probably the steering will come from leaning one way or the other as you can with a bike.

Kindest regards
Poida

 

[sross]

The gyroscopic action of the fans will hold the hover bike horizontal Poida

Hmmm,

Which means you'd better not be up too high if the motor stops and you lose the action of the blades!

And you definitely don't want to lose the benfit of counter-rotation if one of the fans stops running.

Might be a good idea to wear a parachute when riding this thing.

 

[Oldsarge]

Or not take it up over about 20' in the air! That would be my response. If I want an airplane, I'll fly an airplane. I want a land speeder!

 

[AL Sanders]

I'm amazed at the general cynical negativity! Being a designer by trade myself I'm all up for pioneering and pushing the boundaries wherever possible. Surely this is an exciting concept?

I guess you would need some kind of gyroscopic governor to alter blade pitch and yaw but it could all be balanced through a central computer, much in the same way a modern fighter jet flies. Without the onboard stability cpu' they are near impossible to fly.

 

[Poida]

Sross & Old Sarge, yes of course you are right and have described the problems relating to the standard helicopter.

This is described in the saying, "Don't fly in anything where the wings move faster than the fuselage."

 

[apneaboy]

You have also proven to be the most condascending poster on the forums.


I will now post a few of my favourite objects that apparently had something to do with each other.

How do you spell 'condascending' again?

Lots of nice pictures though to help your point reefy ;-)