Vehicles

[TMA_1]

they are based for arrakis because of the harsh and arid environment. with the dust and all. Remember leto had to fix his orni's for arrakis and also repair his spice mining equipment because they were not only old and broken down, but because they needed to be refitted for the environment obviously.

[Caid Ivik]

Not only dust. In deep deserts aren't much mountains, so the wind is here very powerful. I wonder how ornitopther can fly in this. I wouldn't fly into Arrakis wind in less than three Machs and altitude under 30 000 m. Due to it, orni should be usual aircraft for whole universe, used on Dune as well for its popularity.

[Jack Leaf]

And economic reasons, why they should invent new flying machine?

[Caid Ivik]

So, I think in that age will be already many new inventions...

[Jack Leaf]

Yes, but maybe Ornithopters are the cheapests...

[Davidu]

I don't know, but the Ornis live through the series: from the first to the last book.

BTW, do you remember those "invisible" ships?

[Caid Ivik]

You mean no-ships from last two? Those were spaceboats or frigates, vessels based for travel between planet surface and orbit.