Kurt,
Why do you believe that a gastraphetes have more draw weight than a Chinese hand held crossbow? The shooting range of Qin crossbows are 200-300 paces, one pace being ~1.3 yards. Historical Han text shows a draw weight of around 160 Lbs; and Han cross bow are drawn with the foot. Medieval European sprung steel cross bows drawn from the foot can have a draw weight of 300-400 lbs; so 150~ Lbs is reasonable. This is also the limit of composite bows, the Mongolian war bows can draw ~150 lbs, while the Longbows from the Mary Rose can draw around 120 lbs, the Yumi also have a similar draw weight. I know you are a big fan of the gastraphetes and I am too as a mechanical engineer, but as a weapon of war, it is heavy for what it can deliver, big, heavy, unwieldy, you need to stand up to cock it, there is no sights, and the trigger mechanism is poor egronomics, there is no safety, mechanically complex, and cost a fortune to build. Frankly, it is a poor weapon of war.
Torsional weapons are also poor battlefield weapons. their rate of fire is too slow, they are good siege weapon for their power. i.e. How many salvos can you deliver before the enemy is within melee range? ballista have a low rate of fire, Roman Scorpio have a 400 m range, with a 3-4 bolt per minute. This is similar to Chinese triple bows - I see no advantage or disadvantage offered; and much less ROF compared to traction catapults of the same range.
One very important factor that you really have to consider is that composite bows work better in dry climate like northern China where the dryness tend to weaken the torsional fibers. it is a case of give an take - I would say that this is one of the reason why the mongol armies are generally so much weaker in humid climates.
Qin and Macedonia followed very different paths, Qin tend to exterminate as in slaughtering defeated soldiers, and exterminating the defeated generals, interlecturals and nobilities; it is the Qin way or the Highway. Alexander, alienated himself from his men by adopting the Persian style, the purple color and so on; but he gained new allies.
I also doubt that you can find a massed javelin formation doing well against the Chinese army in history. The Northern and western barbarians, are horse back riders with massed formations; the southern barbarians were skirmishers who resisted every step of the way but were gorilla fighters.
Also, the Qin army is made up of a core of professional elites. The elite northern army is supposed to be 200,000 men strong; and like Sparta, every man is a soldier. If we take the imperial guard as the terracotta army size that will be a 8000 men guard only who would definitely serve year round. The fact is, elite formations are nothing new, like the Persian Immortals; the Macedonians are just another.
Why do you believe that a gastraphetes have more draw weight than a Chinese hand held crossbow? The shooting range of Qin crossbows are 200-300 paces, one pace being ~1.3 yards. Historical Han text shows a draw weight of around 160 Lbs; and Han cross bow are drawn with the foot. Medieval European sprung steel cross bows drawn from the foot can have a draw weight of 300-400 lbs; so 150~ Lbs is reasonable. This is also the limit of composite bows, the Mongolian war bows can draw ~150 lbs, while the Longbows from the Mary Rose can draw around 120 lbs, the Yumi also have a similar draw weight. I know you are a big fan of the gastraphetes and I am too as a mechanical engineer, but as a weapon of war, it is heavy for what it can deliver, big, heavy, unwieldy, you need to stand up to cock it, there is no sights, and the trigger mechanism is poor egronomics, there is no safety, mechanically complex, and cost a fortune to build. Frankly, it is a poor weapon of war.
Torsional weapons are also poor battlefield weapons. their rate of fire is too slow, they are good siege weapon for their power. i.e. How many salvos can you deliver before the enemy is within melee range? ballista have a low rate of fire, Roman Scorpio have a 400 m range, with a 3-4 bolt per minute. This is similar to Chinese triple bows - I see no advantage or disadvantage offered; and much less ROF compared to traction catapults of the same range.
One very important factor that you really have to consider is that composite bows work better in dry climate like northern China where the dryness tend to weaken the torsional fibers. it is a case of give an take - I would say that this is one of the reason why the mongol armies are generally so much weaker in humid climates.
Qin and Macedonia followed very different paths, Qin tend to exterminate as in slaughtering defeated soldiers, and exterminating the defeated generals, interlecturals and nobilities; it is the Qin way or the Highway. Alexander, alienated himself from his men by adopting the Persian style, the purple color and so on; but he gained new allies.
I also doubt that you can find a massed javelin formation doing well against the Chinese army in history. The Northern and western barbarians, are horse back riders with massed formations; the southern barbarians were skirmishers who resisted every step of the way but were gorilla fighters.
Also, the Qin army is made up of a core of professional elites. The elite northern army is supposed to be 200,000 men strong; and like Sparta, every man is a soldier. If we take the imperial guard as the terracotta army size that will be a 8000 men guard only who would definitely serve year round. The fact is, elite formations are nothing new, like the Persian Immortals; the Macedonians are just another.