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Leo Todeschini
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PostPosted: Mon 27 May, 2013 3:09 pm    Post subject:         Reply with quote

Tom King wrote
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one of the main advantages of the crossbow was it's ability to penetrate later period armor with relative ease.

a 110-150 lb longbow would have trouble penetrating high quality plate armor in the late 15th century, whereas a 900-1200lb draw crossbow would have little trouble.


I am not so sure about this.

Arrows and bolts can and did penetrate armour and this is easily shown; however it is by no means a given. There are many variables that come into play, such as, but not limited to. Range, power, angle of incidence, thickness of armour, quality of steel, quality of projectile head material, shape of projectile head, velocity of shooter, velocity of target.

small changes in these variables away from the ideal and the projectile will bounce away. I suspect out on the battlefield the vast majority of 'armour piecing' projectiles did no such thing and simply bounced off. They could defeat armour and sometimes did, but it was by no means a given outcome.

My gut feeling about the arrows verses armour debate is that most bounced off, some went through and most arrow casualties were caused not by armour penetration through armour, but by lucky strikes through visors, skidding up under a bevor, clipping the edge of a breast plate and driving up under the arm etc. Basically shoot enough heavy projectiles at a well armoured mass and you will get casualties as they find the weak spots.

Crossbow draw weights are big, but the draw length is small so the efficiency is dreadful. I made a 900lb a while back and that was putting out around 130J i think. That is comparable to a longbow up at around 150lb ( I think), so basically pretty much the same.

I have found that a 1200 puts out similar numbers to a 900lb, certainly not a large increase in delivery so even if we assume it puts out a little higher, lets say 150 or 160J, it is not massively more than a longbow. I think that especially with later period armours often being made from pretty good steel, they were (sometimes) penetrated by both long bow or crossbow but certainly not with relative ease.

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Tod

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Sean Manning




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PostPosted: Mon 27 May, 2013 8:11 pm    Post subject:         Reply with quote

Randall Moffett wrote:
'The draw weights of 15th through 17th century Eurasian bows are high by historical standards. Be careful of assuming that every "war bow" in every place and time had a draw weight similar to the Mary Rose bows.'

I am not sure about this statement. We have nearly 0 evidence for other bows so either way apart from the Mary Rose bows we have no idea on draw weight so why speculate otherwise until one does have evidence? Seeing how other regions have comparable bow draw weights why assume European bows were lower? To me All we can state is that the MR bows were what was likely used. Unless there is strong evidence to the contrary this seems the only stance one could take and be based on evidence.

RPM

Randall,

We have quite a lot of evidence for New Kingdom Egyptian self and composite bows, and some for Scythian bows, Neolithic through Early Medieval European self bows, and so on. Also various other sorts of evidence from other archery traditions, like speed shooting records and comments in tactical manuals that its best to use a bow of moderate weight. The Mary Rose bows analyzed by Hardy and Strickland, and the Turkish bows analyzed by Carpowicz, have heavy draws ... but that does not mean that every military bow in every culture did. Different archery traditions with different resources specialize in different things.

Back on the original topic, Hardy and Strickland have some interesting thoughts on the uses of crossbows. They point out that crossbows work nicely onboard ship. Big battles in the field are only a small part of late medieval warfare.

I suspect that any strong back was used to span crossbows in a besieged stronghold. Strickland cites a story that Richard II used loader-shooter teams when he and a small force were attacked by Turkish cavalry at Jaffa.

Sean
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Randall Moffett




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PostPosted: Tue 28 May, 2013 5:01 am    Post subject:         Reply with quote

Sean,

What does Egyptian bows have to do with European medieval bows? Back to my point there is really nothing else to go on for medieval bows but the Mary Rose Bows. As well the Early Medieval ones are all in tatters so a hard bit of evidence to use. The only other medieval bows I know of in decent condition are all finds from hunting locations. We cannot use far earlier bows to use as support of medieval European, nor hunting bows for martial ones, we can compare contemporary bows as they may have had similar needs with cross-cultural interaction. To me this is really only the MR bows that fit a martial bow.

RPM
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Mikael Ranelius




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PostPosted: Tue 28 May, 2013 10:21 am    Post subject:         Reply with quote

Randall Moffett wrote:
Sean,

What does Egyptian bows have to do with European medieval bows? Back to my point there is really nothing else to go on for medieval bows but the Mary Rose Bows. As well the Early Medieval ones are all in tatters so a hard bit of evidence to use. The only other medieval bows I know of in decent condition are all finds from hunting locations. We cannot use far earlier bows to use as support of medieval European, nor hunting bows for martial ones, we can compare contemporary bows as they may have had similar needs with cross-cultural interaction. To me this is really only the MR bows that fit a martial bow.

RPM


I find it interesting that people so readily seem to accept the heavy draw-weights (+140 lbs) of Asian composite bows, whereas the draw-weights of European warbows has been repeatedly contested and is still a matter of controversy.

There are fragments of European composite bows from medieval Norway that in all probability functioned as warbows. If I'm not mistaken, modern replicas of these finds made by bowyer Ivar Malde has been measured at draw-weights of over 100 lbs.
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Sean Manning




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PostPosted: Tue 28 May, 2013 11:50 am    Post subject:         Reply with quote

Randall Moffett wrote:
Sean,

What does Egyptian bows have to do with European medieval bows? Back to my point there is really nothing else to go on for medieval bows but the Mary Rose Bows. As well the Early Medieval ones are all in tatters so a hard bit of evidence to use. The only other medieval bows I know of in decent condition are all finds from hunting locations. We cannot use far earlier bows to use as support of medieval European, nor hunting bows for martial ones, we can compare contemporary bows as they may have had similar needs with cross-cultural interaction. To me this is really only the MR bows that fit a martial bow.

RPM

Hi Randall,

If you look back, I made a statement about “every 'war bow' in every place and time” in response to a statement that a 50 lb bow was only good for hunting and a military bow needs a 100-150 lb draw. But some of those other sources are military manuals from the Greek empire or the Moslem world ... I would call those medieval. I don't think that the Egyptian warriors who had to lose three arrows at a target 60 m away before the first hit used the same tricks as the man in the video, but I don't think they were pulling 150 lbs either.

Adam Carpowicz has a lot of data on early modern Turkish military bows to compare to the early modern English bows from Mary Rose. I suspect that there is also data on early modern (1400-1700 CE) bows from China and Japan but I have not researched those.

I am not sure what to do with the high medieval bows from Ireland which Cliff Rogers publicized. I have not seen any data on bows from Scandinavia dating to the last thousand years.

Sean
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Randall Moffett




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PostPosted: Tue 28 May, 2013 3:06 pm    Post subject:         Reply with quote

Mikael,

I agree.

Sean,

Let me send an email off and see if I can find some more info.

RPM
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Brian Robson





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PostPosted: Thu 30 May, 2013 8:47 am    Post subject:         Reply with quote

Not sure on how true this is, but I remember hearing something a while back that indicated that the trained longbowman was expensive. In terms of pay. Very expensive.

As mentioned, you could quickly train an unskilled person to use a crossbow. The main benefit of this may well be financial.
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Dan Howard




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PostPosted: Thu 30 May, 2013 2:41 pm    Post subject:         Reply with quote

In the 14th-15th centuries crossbowmen were highly paid specialists often imported from Italy. Longbowmen were locally-raised peasants.
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P. Schontzler




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PostPosted: Thu 30 May, 2013 2:58 pm    Post subject:         Reply with quote

Dan Howard wrote:
In the 14th-15th centuries crossbowmen were highly paid specialists often imported from Italy. Longbowmen were locally-raised peasants.


Locally raised, yes, but still had to be paid. The question is how much? I have seen somewhere between 2p-6p a day, but I haven't seen the primary sources.
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Benjamin H. Abbott




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PostPosted: Thu 30 May, 2013 3:27 pm    Post subject:         Reply with quote

Matt Lentzner wrote:
Can be used from horseback - eastern composite horse bows can be or course, but not a longbow.


Note that Sir John Smythe thought the English warbow could function effectively from horseback. While quite possibility not worthwhile, I doubt he would have suggested something strictly infeasible. There's also this.

As far as draw weights in China and thereabouts go, cavalry bows typically run 80-120lbs and infantry 140-160lbs. In the eighteenth century, Manchu bows went from 80lbs as the basic minimum for horse archery to an 240lbs for one extraordinary athlete. However, in practice as many as third to even half the soldiers at a given garrison could fail to pass muster with the basic 80lb weapon. At the same garrison, only 2.5 to under 1% of soldiers tested successfully with bows of 147lbs and over.
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Jason Daub




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PostPosted: Thu 30 May, 2013 4:30 pm    Post subject:         Reply with quote

I have a personal anecdote to offer, using a medieval styled crossbow I do not have to practice more than an hour or two in a week to maintain a high level of proficiency with it. With a heavier bow, I use a 92# Kassai, I have to practice nearly continuously to maintain the same level of proficiency. If I am tired and have been eating poorly (something that never happens to medieval soldiers, right?) my accuracy and rate of cast quickly drops off, massively more than with the crossbow.
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Benjamin H. Abbott




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PostPosted: Thu 30 May, 2013 4:49 pm    Post subject:         Reply with quote

Yeah, the first complaint that Sir Roger Williams made against the bow was that only 1000 out of 5000 archers were any good, and only half of those 1000 could endure a campaign and still shoot strongly.
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Kevin Smith




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PostPosted: Wed 19 Jun, 2013 5:50 pm    Post subject: Some misconceptions here about English Longbows         Reply with quote

I shoot a 76" (unstrung) 100 lb at 31" ELB. I can shoot it from a kneeling position, from horseback, and have even fired it prone (by lying on my back and shooting). While this is actually lower draw then most of the Mary Rose bows I have not trained all my life to shoot a warbow. The highest draw bow found on the Mary Rose was an 84" 220 lb draw (i believe measured at 28") bow. This bow would have been as effective as a "crossbow" that draws over 1000 lb (with a rate if fire roughly 1-2 shots per minute).
I don't believe that longbows were replaced as man portable weapons due to greater effectiveness of crossbows, with the exception of those that are better classified as light artillery they were not. What caused the demise of longbows was materials. Until the advent of modern adhesives a bow like the longbows of the Mary Rose could only be made of a very limited supply of woods like yew and ash. Only a small percentage of ash is suitable for bows and yew was getting harder and harder to find. Combine limited supply with the difficulty of training the archers and economics takes over.....
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Ben Coomer




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PostPosted: Wed 19 Jun, 2013 8:55 pm    Post subject:         Reply with quote

I wonder how much simple maintenance came into play with the bows versus crossbows?

There's a lot more moving parts to a crossbow, small parts that may not be replaceable on campaign, at least not easily I'd imagine. A bow, at least a longbow, you can cover in a oiled cloth cover and be relatively safe with it.

Of course it may not be that easy. A warbow has to be carefully designed and may not be simply replaced. But, the overall logistics are much simpler. Bow breaks, get new bow.

Just a thought.
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S Ghajar




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PostPosted: Wed 19 Jun, 2013 9:01 pm    Post subject: Re: Some misconceptions here about English Longbows         Reply with quote

Kevin Smith wrote:

I don't believe that longbows were replaced as man portable weapons due to greater effectiveness of crossbows, with the exception of those that are better classified as light artillery they were not. What caused the demise of longbows was materials. Until the advent of modern adhesives a bow like the longbows of the Mary Rose could only be made of a very limited supply of woods like yew and ash. Only a small percentage of ash is suitable for bows and yew was getting harder and harder to find. Combine limited supply with the difficulty of training the archers and economics takes over.....


That would make sense in the ecological and economic context of late medieval Europe, according to historian Norman F. Cantor:

Europeans had lived in the midst of vast forests throughout the earlier medieval centuries. After 1250 they became so skilled at deforestation that by 1500 they were running short of wood for heating and cooking. They were faced with a nutritional decline because of the elimination of the generous supply of wild game that had inhabited the now-disappearing forests, which throughout medieval times had provided the staple of their carnivorous high-protein diet. By 1500 Europe was on the edge of a fuel and nutritional disaster [from] which it was saved in the sixteenth century only by the burning of soft coal and the cultivation of potatoes and maize.

So both the trees with bow-wood and the game that people used to hunt primarily with bows were becoming scarce.

http://books.google.com/books?id=0qiYM2_HhJgC

"This skill," asked Kazan, "is it the horse's or the man's?" "The man's, lord," they said. "No! If the horse did not play its part the man could not vaunt himself; the skill belongs to the horse."
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Randall Moffett




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PostPosted: Thu 20 Jun, 2013 4:56 am    Post subject:         Reply with quote

S,

Let me see if I cannot find an article I just read on this but within the last 15-20 years this has been called into question. The idea that Europe was a massive forest has also been disproven.

Not saying the new resources were not important as they were but that the start location may not have been so grand as often portrayed.

RPM
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Peteris R.




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PostPosted: Thu 20 Jun, 2013 5:34 am    Post subject:         Reply with quote

Crossbows are a very sound choice considering the realities of warfare.

In the 13th to 15th centuries, the largest part of most wars consisted of endless sieges. France, for example, was littered with hundreds, if not thousands of fortified towns, castles, forts and keeps. In a siege situation, the rate of fire doesn't matter all that much. Crossbowmen were far easier to train, and so long as one had enough crossbows, crossbowmen could always be provided in large numbers.

Most French infantry of the period was raised not through any sort of feudal arrangement, but by calling on the militia regiments maintained by all cities and towns. Merchants, builders, farmers, labourers - few had the luxury of free time to practice archery, in a region where archery tradition was not strong. Crossbows provided them with effective means of engaging most threats to their own homes, and in large numbers, supported by pavise-bearing infantry, they could also be effective in open field battles. Of course, in a direct, face-to-face engagement on an open battlefield, crossbowmen were outmatched by archers (although with effective use of pavise shields not by a long margin). But for most other tasks they were no worse.

P.S. A belt-hook loaded crossbow is not 10 or even 5 times slower than a longbow, it's only outmatched 2-3 times.

P.P.S. The widespread use of the weapon meant that some states managed to field very efficient corps of crossbowmen, like the famed Genoese. They were highly trained professionals, well equipped and acting together with integrated groups of pavisier infantry. A shame that the French didn't really know what to do with them in open battle.

P.P.P.S. Not all English archers were nearly up to the standard of the rather small veteran elite, who signed up for service for years on end.
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Benjamin H. Abbott




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PostPosted: Thu 20 Jun, 2013 9:01 am    Post subject: Re: Some misconceptions here about English Longbows         Reply with quote

Kevin Smith wrote:
The highest draw bow found on the Mary Rose was an 84" 220 lb draw (i believe measured at 28") bow.


I've never read of such a high draw weight for any Mary Rose bow. Where is this published? Matthew Strickland and Robert Hardy give 172-180lb as the peak. The copy of Weapons of Warre I got through my university library doesn't include a full table of estimated bow weights, I believe because of a printing error. (The text refers to such a table.)

Quote:
I don't believe that longbows were replaced as man portable weapons due to greater effectiveness of crossbows, with the exception of those that are better classified as light artillery they were not. What caused the demise of longbows was materials. Until the advent of modern adhesives a bow like the longbows of the Mary Rose could only be made of a very limited supply of woods like yew and ash. Only a small percentage of ash is suitable for bows and yew was getting harder and harder to find. Combine limited supply with the difficulty of training the archers and economics takes over.....


In England, the gun, not the crossbow, replaced longbow. No sixteenth-century military theorist I've read considered crossbows more effective than longbows, though Smythe wanted mounted crossbowers and Fourquevaux had great respect for the crossbow. Demographic, economic, and environmental factors surely influenced the abandonment of longbows, but I'm convinced guns had great advantages for sixteenth-century warfare in Europe. Amidst the fortifications and trenches so common in this era, the longbows speed of shooting mattered little. The gun penetrated armor much better, delivered on average deadlier wounds, and was potentially as or more accurate within 60-80 yards. Without the gun, there's no evidence crossbows would have ever replaced bows. In China, the Machu bow remained military useful alongside gunpowder weapons into the eighteenth and perhaps even nineteenth century.
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S Ghajar




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PostPosted: Thu 20 Jun, 2013 9:11 am    Post subject:         Reply with quote

Randall Moffett wrote:
S,

Let me see if I cannot find an article I just read on this but within the last 15-20 years this has been called into question. The idea that Europe was a massive forest has also been disproven.

Not saying the new resources were not important as they were but that the start location may not have been so grand as often portrayed.

RPM


Thanks, I'd definitely be interested in reading this. I'm studying for a master's in rangeland ecology, but I've never taken the time to learn much about Europe's ecology.

This kind of thing happened in the East Coast, too, where people assumed that it was one giant forest that European colonists chopped down. The fact is, it was a giant patchwork of biodiverse savannas maintained by ingenious burning on the part of Native Americans, and this savanna was more biodiverse than any mesophytic forests we have on the East Coast today. I digress, but I've seen mistakes like that before, so I'd love to learn more about the latest scholarship on it.

Thanks again!

"This skill," asked Kazan, "is it the horse's or the man's?" "The man's, lord," they said. "No! If the horse did not play its part the man could not vaunt himself; the skill belongs to the horse."
Kitabi Dede Korkut


Last edited by S Ghajar on Thu 20 Jun, 2013 10:04 am; edited 1 time in total
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Kevin Smith




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PostPosted: Thu 20 Jun, 2013 9:13 am    Post subject: Archers versus crossbowmen         Reply with quote

I think the only country that ever really counted on longbowmen was England. The only way to have effective numbers if longbowmen who could use bows of useful draw was to train them from youth. Hence the English law requiring all able bodied males train with the bow at least once weekly. A large part of other countries failure to adopt the longbow was the reticence about training the commoners in weapons capable of taking down the nobility. Even Italian nations that had the greatest native supply of high quality yew did not adopt the longbow in large numbers.

As for crossbowmen only being outmatched in rate of fire by a factor of 2-3 I have never seen a test to convince me of that. The only test I've seen of period correct designs matched a 120 pound longbow against a 150 pound crossbow. As a 150 lb crossbow is far lower draw than what would have been used in warfare that test seems questionable. In fact that draw weight is the bare minimum draw weight legal for deer hunting with a crossbow in my state.....whereas 120 pounds is nearly three times the minimum draw for a traditional bow in my state.
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