Mycenaean War Galley by Woodrat - 1:48 - Shell first Plank on Frame

[woodrat]

Perhaps the most important event to shape the Middle Bronze Age was the demise of the so-called minoan civilization of Crete. Minoan is a term pulled from the rather creative brain of Sir Arthur Evans, the excavator and popularizer of the Palace of Knossos which he, on the basis of no evidence, called the Palace of Minos. The people he named the minoans were an expert sea people who were known to have traded extensively, especially with Egypt (who record the cretans as the keftiu). The demise of the minoan palace-based civilisation is poorly understood and probably was not sudden. The eruption of the volcanic island of Thera in about 1600 bce may have played a part in this. Certainly, the palaces of Crete were not destroyed by a monster tsunami, as is popularly depicted, but it may have destroyed the minoan war fleet and left the palace-based civilization open to opportunistic takeover by their erstwhile trading friends the mycenaeans. The Late Bronze Age (Late Helladic when applied to Greece) is regarded as that period between the fall of the minoans (1600 bce) and the catastrophic collapse of the Bronze Age civilizations in the early 12^th century bce. 

 

 

The mycenaeans, also known as achaeans (and likely corresponding to the ahhiyawa of the Hittite records), traded extensively throughout the Aegean Sea and the Levant. They were also likely involved in piracy and freebooting including the famous siege of Troy which may have occurred in the Late Bronze Age and was later celebrated in oral performance by whoever Homer was (or were). In any case, the mycenaeans were based in the Peloponnese and what later became Greece during the Iron Age. By fair means or foul, they became the heirs to the palace civilization of Crete and together with the syro-canaanites of the Levant took over the minoan trade networks. The mycenaeans were known as deep-sea traders but they also were more war-like.  It is likely to the mycenaeans that the next revolution in sea-warfare is owed, namely the large, rowed war-galley which became the raiding longship of the age. This is not to say that the mycenaeans invented the concept but they certainly popularized it and brought it to a level of prominence and sophistication which led to its evolution into what became the most feared weapon of war of the Age of Bronze. These in turn were to further evolve during the Iron Age into the battleships of the Geometric and later Attic periods of Greece, the biremes and triremes.

 

 

It is my intention to build as convincing a reconstruction model of a Late Helladic war-galley as I can with the very limited and confusing contemporary evidence available from paintings on pottery, graffiti, carvings on seals and small clay or lead ship models which have survived the ages.

It is not my intention to use other reconstructions or modern artistic representations of these vessels but to sail unescorted into uncharted waters.

I will, of course, be greatly guided by the archaeologists and historians whose knowledge of the period is vast but all the while recognizing the controversies which abound in their literature.

 

Where possible I will try to use construction methods which were known to be extant at the period we are discussing. I may come up with the occasional idea of my own When I carried out my “reconstruction” of the mediaeval hulc vessel, I found that the method of construction greatly influenced the final shape of the hull and it is likely that the same will occur with this build.

I have no academic axe to grind and really it is immaterial to me whether this model meets with academic approval. I claim all my mistakes as my own but welcome them being pointed out.

 

 

No wrecks of any of these war-galleys or similar vessels from the period have survived. The only wrecks of relevance are a couple of trading vessels such as the Uluburun ship found off the coast of Turkey which give some clues to keel and plank configuration. But all the rest relies on the surviving imagery on fragments of pottery and crude models.

I hope you will bear with me as I blunder through this putative reconstruction and, of course, I would like to encourage any MSW members to contribute. There is a vast body of knowledge in MSW which I hope will protect me from the more egregious errors. So, please help me if you can.

 

 

 

Dick

Edited January 25, 2023 by woodrat

[Ian_Grant]

Great project Dick!  I look forward to watching your progress. You are right about there being very few records of these ships but it does leave lots of room for your own ideas. I've found the same regarding Roman war galleys; as you say, they only have old coins and pottery decoration, a handful of wall paintings unearthed in Pompeii, and a few relief carvings on for example Trajan's column for clues about these ships. And that's more recent than your project!

 

Best Regards,

Ian

[Chuck Seiler]

Good luck Dick.  I will drop in from time to time and take a look see.  You and Louis da Fly keep drawing me back here. 

[Louie da fly]

I'm looking forward to seeing your progress on this, Dick. I love your speculative reconstructions of historical ships about which little is known. I've said it before, half the fun is in the detective work before the build even starts, plus the discovery of "OH! THAT'S why they did it that way!"

 

I'm sure you're already aware of the strange paddled galleys in the frescoes at Thera, so I won't burden you with them. Fascinating subject. I'm pulling up a seat.

 

Steven

[woodrat]

Thanks Ian, Chuck and Steven for your comments and support. I will of course discuss some of the antecedents of mycenaean craft as follows

1.     The Iconography

 

 

Most of the images I will use will come from pottery shards which are confidently dated to the Late Bronze age. Some pottery from the Geometric period will be cautiously referenced. I will not refer to evidence from the Middle Bronze Age as the nature of shipping was markedly different then as evidenced by the remarkable wall frescoes from the minoan island of Thera.

These vessels were crescentic and symmetrical in hull shape and propelled either by paddles or oars and with a mast with a square, boom-footed sail very much as seen in Egyptian and syro-canaanite ships of the era.

There are similarities with the Dahshur boats and the Royal Ship of Khufu but the mycenaean war galley had little in common with these vessels of an earlier era

While I am on the subject, I intend to use the Egyptian evidence sparingly. Also, some will note my lack of reference to Landstrom’s books (which I Iove looking at) because I think his reconstructions may influence me too much.

Many of you will be aware of the Late Bronze Age bas-reliefs carved and painted onto the walls of the mortuary temple of Ramses III at Medinet Habu. These depict in graphic detail a battle between the maritime war vessels of Ramses III and a fleet of foreign peoples known as the Sea-Peoples. Much has been made of the Sea-Peoples as a possible cause of the Late Bronze Age Collapse but there is only peripheral evidence for this and the present consensus is that they were an indication of major population shifts in the Mediterranean basin and were one of a number of factors such as climate change, famine, earthquakes and war which created a “perfect storm” and led to the demise of the Myceneans, the Kassites, the Hittites, Mitanni and nearly the Egyptian civilisations of the early twelfth century. For a very readable and logical account of our knowledge of this collapse, may I recommend Eric Cline’s book 1177: The Year Civilization Collapsed. There are also some YouTube clips by him which are useful.
 

 

The ships represented at Medinet Habu have similarities to the mycenaean war-galley and indeed some have included the Mycenaeans in the Sea-Peoples but this is controversial (the list of Sea-Peoples includes the denyen = ?the Danaans of the Iliad).

 

(stop press: the discovery has been announced of the worlds largest ancient shipyard in 2023 on the island of Dana, located off the coast of Mersin province in the Mediterranean region by turkish archaeologists from Selçuk University . This has led to the possibility that the Denyen (danaans) of Sea-peoples fame may originate from this area.)

https://arkeonews.net/underwater-archaeologists-discovered-worlds-largest-and-oldest-ancient-shipyard-on-dana-island-turkiye/

 

The Sea-Peoples ships are rowed, have a crescentic hull, fore and stern-castles and bird heads on both the prow and stern facing outward

 

 

Some speculative reconstructions have been made of the Sea-Peoples ships based on these bas-reliefs but caution is required. The carvings were done by royal Egyptian artists and have doubtless been influenced by the artistic conventions required of them and inevitably some inaccuracies in scale, number of rowers and structure may have occurred. Nonetheless, these images are a very useful first step in resurrecting the mycenaean war galley to which they have some resemblance. Please see Shelley Wachsmann’s excellent monograph for a full discussion of the Medinet Habu reliefs.

The distribution of corpses about the overturned ships give some indication of the nature of the ships’ superstructure

 

 

The next section will discuss the Late Helladic pottery shards and clay models

 

Here is a limited bibliography:

Shelley Wachsman: Seagoing Ships &Seamanship in the Bronze Age Levant. Texas A&M. 1998

Lionel Casson: Ships and Seamanship in the Ancient World. Princeton University Press. 1971

Paul Johnstone: The Seacraft of Prehistory. Routledge Kegan and Paul. 1980

J R Steffy: Wooden Ship-building and the Interpretation of Shipwrecks. College Station. 1994

John Morrison (ed.): The Age of the Galley. Conway’s History of the Ship. 1995

Basil Greenhill: Archaeology of the Boat. London. 1976

 

Dick

Edited March 16 by woodrat

[GrandpaPhil]

Looking forward to watching this build!

Edited November 30, 2022 by GrandpaPhil

[woodrat]

The Mycenaean Pottery Shards

 

The Kynos Ships.

There are some common elements seen in the depiction of Mycenaean vessels on pottery bits. The most striking is the ladder-like appearance. In some cases, the vessels have been simplified to the point that all is seen is a ladder.http://www.salimbeti.com/micenei/ships.htmFrom S. Wachsmann : Seagoing Ships etc

 

At Pyrgos Livonaton in Central Greece a site has been excavated and identified as Kynos, mentioned in the Iliad. Quite a number of pottery fragments showing ships, parts of ships, warriors and clay ship models has been found. The most complete of the depictions is the Kynos Ship A.

 From S. Wachsmann : Seagoing Ships etc

 

http://www.salimbeti.com/micenei/ships.htm

 

This lacks only the figurehead and sternpost decoration. The hull is subtly crescentic but with a sturdy vertical stem post and a curved stern. The steersman is depicted on his stern platform holding the loom of a steering oar. Betwixt the stem and stern is a band with the appearance of bubble-wrap. This has been interpreted as a bulwark faced with cow hide (seen in other depictions commonly e.g. on shields). Nineteen vertical partitions are seen between the bulwark and the hull with half-moon shaped silhouettes attached. These latter have been interpreted as the chests of the oarsmen at the end of their stroke. The partitions are likely to be stanchions supporting the deck superstructure. The heads of the oarsmen are thought to be hidden behind the cow-hide bulwark. Atop a lightly built forecastle postures a feather helmeted warrior and a further warrior aft of the very sketchily indicated mast. This depiction may represent what Homer referred to as a pentikontoros (25 oars a side) in his epic. It could equally be a triakontoros (15 oars a side). The similarities to the Medinet Habu ships are evident

. Kynos Ship C'

 

http://www.salimbeti.com/micenei/ships.htm

Kynos Ship C shows well the bird shaped figurehead with a sharply up turned beak commonly seen on these ships. The oars in this case are unmanned, presumably they grabbed their weapons and were in the process of smiting. Interestingly, the oars are seen extending above the bulwark. Does this mean the vessels could be rowed from two stations, above or below the bulwark according to need? This is seen on later shards from the eight century BCE.

 

 

A painting on a sarcophagus from Gazi in Crete (in Iraklion Museum now) shows a roughly drawn ship of this era. The ladder effect is prominent.

 

 

 

From Tragana near Pylos in the Peloponnese comes a largely complete ship with 24 stanchions presumably a pentikontoros. It shows a bellying square sail and an interesting steering oar. The bird-shaped figurehead is again seen and this time has an additional figure ( half missing) behind the figurehead which may be another bird. Note also the small projection of the ?keel and another sharp projection halfway up the stempost

 

The rear bird is speculative, it might be a fish?

 

Clay models next

Cheers

Dick

 

 

 

 

 

 

 

Edited December 21, 2022 by woodrat

[Louie da fly]

Wonderful research, Dick. I've come across a few of these pictures before, but not with any serious intent to do anything about them. I look forward to seeing the conclusions you draw from all this.

 

Steven

[druxey]

Thank you for educating us, Dick. I wonder wherher the ladder-like iconography represents internal thwarts or even frames?

[woodrat]

Thanks Steven and Druxey

23 hours ago, druxey said:

I wonder wherher the ladder-like iconography represents internal thwarts or even frames?

There are many competing theories e.g. the ladder represents an artistic convention with the plan view superimposed on the sheer view and representing frames. Or are the stanchions at the side of the bulwark or internal to it supporting a war deck? No one knows for sure. Some reconstructions show a spindly structure supporting just a cowhide pavise (e.g. Argo reconstruction discussed later). Others opine that the stanchions were strong enough to support not only a war deck but also rowers benches if the galley was rowed from the upper station. I will decide once I have made the wooden hull. There are clues from the representations from the Geometric period which followed the Late Helladic that show warriors legs seen through stanchions and apparently standing on what might be the lower rowers benches.

From Casson: Ships and Seamanship etc

Other geometric galleys show the they were either rowed from upper or lower positions (or maybe both)

 

From Casson: Ships and Seamanship etc

However, the last picture is interpreted by Landstrom as owing the port and starboard rowers placed one above the other. I dont ascribe to this.

There are enough pictures of geometric galleys showing warriors gallumphing along a raised war deck to satisfy me that the superstructure was strong . If so, the hull must be deep enough to compensate for the top-heavy superstructure and the gallumphing warriors. Grapnelling a ship's mast or rigging and capsizing it is well shown in the Medinet Habu bas reliefs and seems to be a favoured technique of sinking ships in the era before the  invention of the ram. So top heaviness was always on their mind!

From Casson: Ships and Seamanship etc

Cheers

Dick

[glykan]

Hi Dick,

I will follow your progress and I am specifically interested in what info you can find on sail rigging of that period. You see, I've built a 1:50 POB model of a Minoan trade ship (or my rendition of it) and while I was able to reproduce some of the period features, I didn't find much on sail/mast rigging they had and therefore kept it over-simplified. I'd be glad to go back to my model and add some details to it.

Eugene

[woodrat]

On 12/11/2022 at 2:06 AM, glykan said:

I will follow your progress and I am specifically interested in what info you can find on sail rigging of that period. You see, I've built a 1:50 POB model of a Minoan trade ship (or my rendition of it) and while I was able to reproduce some of the period features, I didn't find much on sail/mast rigging they had and therefore kept it over-simplified. I'd be glad to go back to my model and add some details to it.

OK Eugene. The rigging of the Late Helladic vessels was most likely very different from that of the Middle Minoan ships such as you have attempted in your model. I will go into detail on Late Helladic rigging in a later post.

from the Akrotiri ship procession frescoes

The minoan vessels had a single mast with a square sail made of segments sewn together, material unknown. The sail was hung from a two or three piece yard with the pieces bound together maybe with leather rope. The foot of the sail was attached to a wooden boom.

t

Taken from Wachsmann originally from Morgan 1988

 

The yard and boom were controlled by a stack of loops at the masthead through which ropes were led to the deck. The use of stays and shrouds  is conjectural.

These seals give an impression of a hatched appearance to the sail segments. The sails may have been decorated for special celebrations.

I hope this helps

Dick

[glykan]

23 hours ago, woodrat said:

I hope this helps

Dick

Hi Dick,

Thanks a lot for very useful information, it definitely helps.

Seems that shrouds are out of questions though the stays (probably with basic pulleys) seems to be there. I've also found a short video about a reconstruction of the Minoan ship in port of Chania, Crete - and it seems that builders tried to stay as close to original techniques and design as possible

https://www.youtube.com/watch?v=G6UX86mv6XI#t=115

Thanks again

Eugene

[woodrat]

Eugene, I would not use pulleys, just wooden loops through which the ropes pass. There are no shrouds. There is evidence that at least in greek ships there were two forestays going to port and starboard forward bulwark which could act as sort of shrouds. There may have been a backstay. Also the mast step would include an upright post in front of the mast to which the mast is lashed when stepped. Beware of using modern deck fittings. Most ropes were secured around posts or bulwarks. Whatever you choose is right because nobody really knows. Remember this is the Bronze Age.

Dick

[Ian_Grant]

woodrat, you wouldn't happen to have a picture of what such a mast step might have looked like?

[woodrat]

On 12/14/2022 at 10:25 PM, Ian_Grant said:

woodrat, you wouldn't happen to have a picture of what such a mast step might have looked like?

 

Ian, there are no pictures extant of this. The evidence is literary. When Odysseus was about to be tempted by Sirens, he commanded his crew to lash him to the histopede. The mast (histos), it is written, had been previously lowered and placed on its crutch (histodoke).  So he cant have been lashed upright to the mast as has been shown in later red-figure pottery.

It is likely that the histopede was an upright part of the mast step , much as is seen in viking ships (but taller) to which the stepped mast could be lashed.

 

The following pics are from my hulc build.

Dick

[Ian_Grant]

Dick, thank you for the information. Your model looks amazing!

[Roger Pellett]

In the Odyssey, the mast is raised each time the vessels put to sea. In confined waters this can be daily as the ships are beached each night.   Having done this many times in small craft, the easiest way is for someone in the boat to “walk the mast up” starting at the stern and moving forward.  I can see how this same technique would have been used by these ancient sailors.  This would have involved several crewmen.  With the mast vertical, it was probably too heavy and awkward to lift it into a hole in a mast step.  A vertical post that the upright mast could be lashed to would seem to make sense.

 

Roger

[woodrat]

7 hours ago, Roger Pellett said:

he easiest way is for someone in the boat to “walk the mast up” starting at the stern and moving forward.

Exactly, Roger. I allowed for that in this mast step by chamfering the slot for the mast foot so that the mast coould be"walked" into the slot an angle and then raised vertical.

Cheers

Dick

 

[woodrat]

Clay Models:

 

To be honest, I did not find the contemporary clay models from Greece, Cyprus and elsewhere very helpful. In fact they were confusing in their variety. Some were rockered and some were flat bottomed. All were crudely hand-made.

Late Helladic Athens ( from Wachsmann) ( from Wachsmann)

Late Helladic Tyrins ( modified from Wachsmann)

Late Helladic Kynos ( from Wachsmann)

Late Helladic Argos ( from Wachsmann)

However, of note are the models from Kynos and Argos which show, in addition an idea of the cross sections and also the lack of a true keel protruding outside the ship. This strongly suggests to me that in all likeliehood, they had keel planks to which the garboard strakes would have been fixed. Also the keel plank ( width greater than depth) would have protruded internally as in the Uluburun Late Helladic merchant vessel

 

 

So, I am happy to proceed on the premise that at least some Late Helladic war-galleys could have been constructed with keel planks.

Cheers

Dick

 

Edited December 22, 2022 by woodrat

[Roger Pellett]

Maybe just rationalization, BUT:  There was no structural advantage to be gained from an outboard keel.  There are examples of later vessels where the garboard strake is part of the keel.  Such could be the case here.  Lack of an outboard keel would limit upwind Sailing possibilities but in that case the vessel could be and probably was rowed.  For a vessel that was often beached, an outboard keel would be an easily damaged nuisance.

 

Roger

[woodrat]

Exactly, Roger. A keel plank with wide garboard strakes, rockered and with a slightly protruding and upward curved forward end would make beaching prow first possible. If beached stern first, the curved stern now makes sense.

 

Let us now consider the rowers.

The krater in the British museum (Museum number1899,0219.1) from Thebes shows a Geometric Galley dated to circa 800 bce.

This has been variously interpreted as showing:

• 20 rowers on each side in a single banked galley with the port and starboard rowers shown above each other
• sheer view of galley double banked with 40 rowers on each side. a top row of 20 and a bottom row of 20.
• a double banked galley with the port and starboard rowers interdigitated with each other i.e. 20 rowers on each side, 10 in upper bank  and 10 in lower bank

the first option (favoured by Landstrom) is clearly wrong in that there is simply not enough room for the rowers to move. The second option is wrong for the same reason plus it would give a total number of 80 rowers (40 port and 40 starboard), a riidiculous number unsupported by the evidence.

 

This leaves the third option which I believe is correct. I have taken the liberty of modifying a display of this image of the Thebes vase which I think is from the Metropolitan Museum of Art and I hope they dont mind. This is the unmodified picture

I have extracted the rowers on the far side of the galley and corrected the distortion of perspective

Then I have compressed the height to make the galley more consistent with other galleys

This I think gives a rather more believable sheer view of a double banked geometric galey which, except for the ram, would be indistinguishable from a Late  Helladic mycenaean galley.

 

This rather ribald quote from Aristophanes "The Frogs" backs up this concept (apologies for the crudities):

Aeschylus
Then you taught all our youth how to be idle chatterers and crap on about nonsense all day. You’ve emptied our wrestling schools and destroyed the wonderful bums of our young men. All they do is stand around these days, chattering and chattering and encouraged the crew of our public ship, Paralus, to talk back to their commanders. Not like the olden days when all these men knew was how to pull hard at the oar and shout, “heavvvvvve hooooo!” That’s how they’d earn their food!

Dionysus
By Apollo, how true is that, ey?  Hehehe!  Those on the upper rows would fart straight into the mouth of the rowers below, drop **** into his mess mate’s food bowl and when they’re out on the shore for their leave, they steal everyone’s clothes…They were the days!

Aristophanes Frogs 1069–1075, translated by G. Theodoris

Happy New Year

Dick

[woodrat]

As to the possible size of the hull of this vessel, the closest evidence I can find comes from the Great Temple of Hera on the island of Samos. Herodotus referred to it as the greatest temple of his time in Greece and it is now ruined with only one column standing. It was likely founded in the 10th century bce and its major period of construction dates from the 8th century bce and hence in the geometric pottery period. The association of the temple with maritime activity is attested by the discovery of many small clay models of boats which I presume were votive. I cannot find any pictures of these boats. Also excavated were the full size bases of a two boats or ships found near the Great Temple.

 

modified from Google Earth image

Thanasis has kindly sent me a link to a treatise greek which contains pictures of the ship base and a good map which indicates two ship sized bases near each other.

The original for this picture is Kyrieleis, 1983, 1989

Edit: This picture is actually from Samothrace and probably is the base for a trireme ?

Wallinga in The Conway book The Age of the Galley refers to a measurement of this boat base  on Samos as 4 metres in width and 23 metres in length. This probably refers to a pentekontoros and, if so, the length would be consistent with a double banked version (much like the later liburnian)

 

Here are some reasonable deductions from the late Helladic Pottery, literary souces and archaeological evidence:

• Length about 23 metres
• width about 4 metres
• no ram although a skid like projection of the keel(plank) is likely in order to ease beaching stem first
• a rockered keel(plank)
• a curved stern topped with an ornament (possibly an acanthus seed, in my opinion)
• a straight vertical or slightly forward tilted stem piece topped with a bird-like head ornament facing forward
• between 30 and 50 rowers rowing from either an upper or a lower bank of oars or both.
• Some protection of rowers from spray, wind or arrows by cow-hide strips
• stanchions connecting lower to upper banks of rowers
• probably a central partial deck level with upper bank of rowers for the warriors to gallumph along
• a stern platform for the steersman handling a single steering oar (double quarter rudders came later)
• a forward raised platform aft of the stem piece whence the Great Warrior could menace enemies with long lances.
• a single mast mid keel which could be quickly lowered and rested on a crutch (histodoke)
• a square or rectangular sail which could be brailed up. The boom-footed sails may still have been in use however)

I will sketch up a concept which incorporates these elements

Dick

Edited January 9, 2023 by woodrat

[woodrat]

Here is the first sheer draft and cross section of my mycenaean war-galley.

Cheers

Dick

[Louie da fly]

That sounds very interesting, Dick. One thing I've been forced to look up in following this is the periods you're dealing with. So now I know Late Helladic (at least according to Wikipedia) is also known as the Mycenaean age and corresponds to 1550-1050 B.C.E.  whereas Geometric is 900-700 B.C.E. and Late Minoan appears to be something like 1500-1100  B.C.E. (that one's a little hard to work out, as the terminology has been revised, but seems to tie in with Late Helladic/ Mycenaean).

 

So the difference in time period between the late Helladic  and Geometric is several centuries, in which one can expect quite a bit of evolution in ship types, as well as differences between shipbuilding cultures.

 

So am I right in thinking that  the hull shape of the ship you're planning to build is based mostly on the illustrations in your post #7, but with supplementary information from the other illustrations from other periods to fill in details they don't provide?

 

Steven

[woodrat]

14 hours ago, Louie da fly said:

So am I right in thinking that  the hull shape of the ship you're planning to build is based mostly on the illustrations in your post #7, but with supplementary information from the other illustrations from other periods to fill in details they don't provide?

This is the case, Steven. The difference between the mycenaean galleys of the Late Helladic and the galleys of the Geometric are largely cosmetic but also represent the evolution of martime warfare from the previous techniques (hurling stone blocks or anchors into enemy ships or assaulting with projectiles) to the revolutionary advent of the ram, first seen in the geometric galleys. The advent of the ram constitutes one of the first naval arms races which, together with smaller, more manoeuvrable galleys enabled quick despatch of ramless galleys. From then on all galleys had to have rams.

So, in my opinion, it is valid to use information from the Geometric period to inform its predecessor.

Dick

[Roger Pellett]

I suppose that the last photo of the base gives an idea of underwater hull shape and a semicircular underwater cross section minimizes drag at lower speed length ratios by minimizing wetted surface area.  A semicircular underwater cross section would, however, have very poor transverse stability characteristics.  Without going into details, when the hull is disturbed from an even keel the “low side” needs to gain buoyancy to push it back upright.  A boat with this hull form with a high center of gravity from the upper bank of rowers would be very tender.  Analytical boat design would be almost 3000 years in the future but the boatbuilders would quickly learn these lessons empirically.

 

Roger

[Louie da fly]

Very interesting, Roger. So, given the shape of the bilge as indicated by the ancient base, what shape would you suggest for the rest of the hull have as it goes upward from the bilges, to be more stable?

 

Steven

Edited January 6, 2023 by Louie da fly

[Louie da fly]

Dick, though it's a round ship and your is a galley, the Uluburun wreck (14th century B.C.E.) might help in determining the underwater cross-section, as far as stability goes.

Edited January 6, 2023 by Louie da fly

[Roger Pellett]

Steven,   I’ll have to do some thinking about that.  There are actually two different stability considerations.  Initial stability (applicable to small angles of heel), and Range of stability ( the angle at which the righting moment disappears).  We are concerned here with the former, as a slight heel will cause rowing to because difficult and the hull to flood.

 

Roger