In my opinion a steam engine is exactly in the tech faction "philosophy". Tech faction has units which are the more close possible to real technology, in opposite of the magic faction.
But it is right there is strange features for mechanical technology, like bipedal moves for battle machine which are extremly hard to reproduce with modern robotic . Successful modern bipedal robots were build with a multidisciplinary point of view ( with as much studies in biomechanic and physiology as robotics ) but are still very unadapted to make a hike
)
No flying object in middle age ? chinese invented kites since the antiquity and used them to lift men
http://www.britannica.com/EBchecked/topic/319666/kite . The Chineses had a material in quantity enough strong and light to allow flights : the silk .
In fact, the glest's ornithoptere looks like to the leonardo Da Vinci flying machine:
http://www.angelfire.com/electronic/awa ... nardo.html . LOL watch the last pictures of that site and you will see that glest's ornithoptere is EXACTLY the leonardo's flying machine.
Of course, Leonardo's machine is not supposed to work (due to the inadapted human strenght to move the wings
, may be Hero's steam engine would make it possible ) But it proves that tech faction is inspired by real inventions.
After watching in you-tube i saw there is fun video about Hero's engine. This may help "modeling skilled people" to add this engine to battle machine, if they want :
_
http://www.youtube.com/watch?v=ozcZ65bqUF0&NR=1_
http://www.youtube.com/watch?v=Y8eb3ak1f9g_
documentary video (partialy or totaly in spanish or portugese) :
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http://www.youtube.com/watch?v=GLsRygxnwu8_
http://www.youtube.com/watch?v=DbAP13n6_3M