How Do Those Vehicles Fly?

The second half of the 2008 storyline featured three big flying vehicles-the Rockoh T3, the Jetrax T6, and the Axalara T9. Well, I’m not sure if they were really that “big.” Going by the scale of the sets and the comics, they’re probably comparable to Star Wars speeder bikes in terms of size. Their designs are nothing short of awesome. But recently, I started wondering…could vehicles like those REALLY fly?

I’m sure you all know how man-made aircraft work: the engines propel the aircraft forward, and the air passing over and under the wings give it lift. The wings, tailfins, and rudders are what allow the plane to rise, fall, or turn in the air. But if the plane’s engines were to stop running, then the plane would fall from the sky.

With that in mind, let’s take a look at each vehicle.

image

The Axalara T9 might be the most streamlined of all of these vehicles, making for a sufficiently aerodynamic form. According to BioSector01, its rear engine provides seven millions pounds of thrust, or 31 million Newtons. That gives it plenty of propulsion for flying through the air. I’m not sure if that round gizmo under the nose is an engine turbine of any kind, but if it is, then it’ll help, too.

But the problem here is, how does it generate lift? The three blade extensions at the back definitely don’t count as wings-in fact, they probably end up creating extra drag! And, obviously, there are no wings on the sides of the Axalara, and no helicopter blades, either. Maybe this problem is dealt with by having some kind of technology that creates an air cushion, similar to a hovercraft. But given how powerful the engine’s thrust is, that air cushion had better be a strong one.

Now for the Jetrax T6.

image

Of all three of the vehicles, this one might bear the most resemblance to the aircraft we have in our world. We’ve got a central fuselage, two wing-like extensions with large engines, and a sleek shape. Although, most modern aircraft would have the cockpit at the front, as opposed to the back.

That said, could the Jetrax T6 fly while adhering to the laws of physics? Well…I think it could, actually. BioSector01 doesn’t say how much thrust the engines can provide, but given their size, I’d imagine it’s a good amount. And the fact that they’re placed on either side of the fuselage’s center helps. They can provide thrust to propel the vehicle forward, and assuming that the extensions with the engines have some kind of elevators, they could allow the Jetrax T6 to ascend or descend, too. And it does have extra tailfins at the base of its rear cockpit, so…

There is an issue, however. BioSector 01 says that its engines provide extra power, but can be shed to give extra speed. Um, what? As far as I can see, those engines are the only things giving thrust to the Jetrax T6. How can it possibly fly if not for those engines?

Lastly, the Rockoh T3.

image

This is easily the least aerodynamic of the three vehicles. Of course, this might be due to its supposed purpose of being a flying battering ram. As for the rest…well, the engine exerts two and a half million pounds of thrust. That’s pretty strong. And, whereas the Axalara T9’s lack of wings present a problem, the Rockoh T3 has two sets of wings-one at the rear, and one in the middle. It seems reasonable to assume that the rear wings are for steering, and the ones in the middle help provide lift. Only…those wings don’t seem big enough for a vehicle of this size. Again, it might have to resort to a REALLY strong repulsorlift technology.

One point of note is that one of the sets’ functions is that you can fold in the central wings for a “power dive.” This is actually 100% true to the laws of physics. If a fixed-wing aircraft was going really fast through the air, and it folded its wings backward, it would indeed take a nosedive.

Of course, this IS set in a science-fiction universe. Given that the Great Beings were able to create a 40 million-foot-tall robot that somehow doesn’t collapse the moment it sets foot on Aqua Magna, it’s not such a stretch to think that the MU inhabitants could work around the laws of physics to allow for the vehicles we saw to exist. But, even with all that said, these vehicles are still much more realistic than this:

11 Likes

I suspect that this is in reference to the engines folding in. It doesn’t make sense for them to completely detach.

As long as the engines are able to change their angle even slightly, they could generate lift.

As for the aerodynamics: when you’re supplying Saturn V levels of thrust to a car-sized vehicle made of basically indestructible metal, I’m not sure if you need to worry about aerodynamics.

Also, as a fun side calculation: 7 million pounds of thrust is equal to roughly 30 million newtons. Even if we assume the Axalara has a mass triple than of an average fighter plane, that puts it at about 60000 kg

F=ma
a=F/m

The Axalara can accelerate at about 516 m/s^2, or 52 Gs.

For reference, the fatal g-force for humans is about 1 minute of 10 Gs

6 Likes

Probably magic. I mean, how do Kanoka work? Kanohi? Elemental powers? Bionicle makes no sense when you think about it for more than 10 seconds at most.

12 Likes

Sure, but then you’d have to worry about the air resistance…

4 Likes

Would you though?

7 million pounds of thrust is roughly enough to push the Saturn V though the air at 10 km/s, while also fighting gravity. The Axalara has a far smaller cross-section, and is moving horizontally; I’m sure that some of that thrust is going against gravity, but most of it is horizontal.

4 Likes

It’s physics time.
About Axalara: Jeminator’s calculations are correct, but I assume that Axalara weights more, much more: “The vehicle features double-reinforced, twenty-four inch-thick armor (61 cm, 0,44 bio)” - that’s much.
I don’t see any issue with aerodynamics, protosteel can withstand some air resistance, I think. And also Axalara is basically a rocket - rockets do not have big wings, only small ones at the rear - and Axalara has those too.
Jetrax: it obviously can fly with big engines unfolded. As you said, it’s almost a plane. It actually has 2 more engines at the back of the cockpit, but they are pretty small, sooo… I think BS01 is not accurate about those folding engines.
Rockoh: it has wings, but, Artakha or not, wings can give a limited lift, so I doubt that they are enough. But here come all the same arguments as for Axalara - It looks pretty much like rocket too.
Now to the serious part: What is your concern about Rocka’s jet? It’s perfect. Like it has wings and an engine so why not?

5 Likes

Everything is protodermis. Why does gravity not work? Protodermis. Why does the Mask of Time slow everything down in the MU? Protodermis.

9 Likes

Probably relevant - I tried recreating both the Axalara T9 and Vultraz’s skyfighter a fair while back in the SimplePlanes flight simulator (unmodded). I remember that neither could really get off the ground, but I had limited success spawning one of them (Vultraz’s, I believe) mid-air. The Axalara was front heavy and kept doing flips, but also, none of the engines in the game probably were anywhere near the thrust that thing can produce. :stuck_out_tongue:

5 Likes

I figured it’s along the same lines as Star Wars: powerful antigrav/Kanoka tech for getting off the ground/maneuvering, powerful engines for propulsion.

5 Likes

Maybe Lewa uses his kanohi Miru :stuck_out_tongue:

6 Likes

These are toys for kids. The design of them is to looks cool, not to look functional.

4 Likes

It’s called suspension of disbelief.

something I feel like the members of the BIONICLE community struggle with a little bit

11 Likes

Not really adding anything here, but I love it when a niche interest generates a really specific discussion within an even more niche interest

12 Likes

Ok, I actually kind of want to see that in action now.

3 Likes

They fly because of the second law of imaginative vehicles:
if it looks cool it works well

Also the tenth one states:
If it has something that resambles an engine/thrusters/wheels/wings/etc… it works because of plot, no other explaination is needed

1 Like

But…rockets aren’t designed to perform like planes or helicopters. They’re designed to go straight up through the atmosphere and into space.

My concern is that it isn’t fit for flying at all. It’s just a chunky cockpit attached to a chassis that has wings and an engine attached. Not only is that the complete opposite of aerodynamic, it’s probably very front-heavy, which is NOT a good thing for an aircraft.

Yeah, I kind of forgot about Vultraz’s skyfighter…though it presents many of the same problems as the other three vehicles.

But now that you mention it, that may be the reason why these seemingly impossible vehicles can fly: Artakha has access to technology that gives vehicles a bigger thrust than our technology can.

1 Like

That is the reason.

The most powerful rocket ever constructed by humans is the Saturn V. Its first stage could produce nearly 8 million pounds of thrust using 5 engines, each about 12 feet in diameter. These engines only lasted for about 150 seconds before running out of fuel.

In comparison, Artakha was able to generate 7 million pounds of thrust using only 2 engines, each about 3 feet in diameter. The thrust duration of these engines is unknown, but Lewa was flying the Axalara around for a while.

It’s absolutely ridiculous how far above our technology Artakha is, never mind the Great Beings.

3 Likes

Bionicle literally has airships that fly with levitate and increase weight kanoka. I don’t think levitating one of these puny things would be beyond them. Once they’re in the air, the rockets propel them forward.

Also, forgive me, but…

According to all known laws of aviation, there is no way that a Rockoh should be able to fly. It’s wings are too small to get it’s fat little body off the ground. The Rockoh, of course, flies anyway. Because Bionicles don’t care what humans think is impossible.

Someone had to.

10 Likes

You had me on the floor laughing with this…though you could say that about any of the three vehicles.

3 Likes

I meant war rockets, those that can shoot down a super-sonic fighter. They have plenty of maneuverability (as far as I know), and could have even more if needed, I think. And Axalara is probably cool for drifting/skidding :stuck_out_tongue:

Rocka’s jet has more-or-less aerodynamic cockpit, comparing to Rockoh’s fore section. And also less front-heavy than Axalara…

And Vultraz’s vehicle actually have wings, but it’s front-heavy too. Though I think Vultraz balances it by his own weight, that vehicle seems pretty much realistic to me.

Also I totally agree with Racie, each vehicle just could have a pair of high quality, wear-free levitation disks here and there, and everything is alright.

1 Like