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Dugout boat propulsion by Niall Gregory

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Dugout boat propulsion : Presentation by Niall Gregory at Early Watercraft seminar, 18 of August 2018 in Soomaa national park of Estonia

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Dugout boat propulsion by Niall Gregory

  1. 1. Dugout Boat Propulsion: Overview from Ireland & New Discoveries – Niall Gregory
  2. 2. Irish Dugout Boats and the Propulsion Evidence Direct Evidence for Propulsion • Propulsion Item found in the Boat: • 0 Boats with Punting Poles • 4 Boats with Paddles • 0 Boats with Sculling Oar – Hull Feature? • 5 Boats with Sailing Feature (and possible 6th in Lough Corrib) • 38 Boats with Rowing Features Number of Boat Discoveries • 1997 – 405 recorded boat discoveries • Current Number – approximately 500 • Definitive Evidence of Propulsion – 10% • I00% - Paddled? • Possible Propulsion Methods: • Paddling • Punting • Sculling • Rowing • Sailing
  3. 3. Rowing Dugout Boats The Evidence • Thole Pin Holes • Thwart Rests • Footrests • Oars?
  4. 4. Sailing Dugout Boats The Evidence • Mast Step • Rigging Supports? • Steering Support?
  5. 5. Discovery of Boat Remains • Winter Storms 2015/2016 • River Finn – near confluence of Rivers Finn & Foyle • Area know for its dugout boat discoveries • Department of Communities for Northern Ireland – Ronan McHugh • Shattered Boat Remains – 16 Pieces
  6. 6. Identifying the Boats – 16 Pieces IE411 IE412 IE413 IE414 IE415 IE416a IE416b IE417 IE418 IE419
  7. 7. IE412 Key Features Floor at Stern & Partial Sides Surviving Length -1.95m Width - 0.64m Height (ext) - 0.15m Base Thickness - 0.04m Side Thickness - 0.02m Form - Punt (3 planes) Parallel-Sided Medium - Resistance Draft - Shallow Purpose – Cargo (Light) Propulsion - Punting Stern Footrests
  8. 8. IE417 Key Features Port Side & Part of Chine Surviving Length -5.6m Width - ? Height (ext) - 0.4m Base Thickness - 0.05m Chine Thickness - 0.03m Form - Tapered Square Stern & Prob. Rounded/Pointed Bow Medium - Resistance Draft – Shallow/Medium Purpose – Cargo (Heavy) in strong current Propulsion – Stern Punting
  9. 9. IE419 Key Features Floor & Part of both Chines & Upturn of Stern Surviving Length -4.11m Width – 0.55m Height (ext) - ? Base Thickness - 0.05m Side Thickness - 0.025m Form – Canoe (Parallel- Sided) - Indication of Rounded Ends (3 Planes) Medium - Low Draft –Medium Purpose – Cargo (Heavy) in strong current

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