Designed for the 44ft Tri-Foil Seastead (45' HC Containerized). Operational Area: Caribbean (Non-Hurricane Season). Crew: 4-6. Budget Target: Total Seastead $500k–$600k.
Why not a brand-name 14ft RIB (Novurania, Zodiac, Walker Bay)? A genuine 14ft Hypalon RIB with console + Yamaha HARMO exceeds $35k–$50k USD and weighs 400–600 lbs dry. This consumes 10% of your total build budget and significant payload allowance.
Strategy: Source a **3.8m – 4.2m (12'6" – 13'9") Heavy-Duty PVC/ORCA Hypalon RIB with High-Pressure Air Floor (HP Air Deck)** directly from a vetted Chinese manufacturer (e.g., Qingdao, Weihai, or Ningbo factories). This hits your "under 14ft" regulatory target, packs flat in the container's void space, and costs 1/3 the price.
| Item | Cost (USD) | Notes |
|---|---|---|
| 4.0m RIB Hull + Tubes (OEM Direct, Hypalon) | $6,500 – $9,500 | FOB China. Includes HP Air Floor, paddles, pump, repair kit. |
| Shipping (LCL in your 45' HC) | $0 (Included) | Packed in container void space. |
| Yamaha HARMO 4.0L System (Motor + 2 Batteries + Charger) | $8,500 – $10,500 | US Retail ~$11k. Look for Dealer/Distributor pricing. |
| Console/Seat/Jockey Console (FRP) | $800 – $1,500 | Source from same RIB factory. |
| Total Dinghy Package | $15,800 – $21,500 | Saves $15k–$30k vs Western Brands. |
Container Packing: Deflate tubes, fold. Stack HP Air Floor flat. Hull nests against container wall. Fits in "center void" or alongside legs.
You need: Speed/Range (Open Ocean) + Dual Engines (Redundancy) + Capacity 4-6 + Fits in 45' HC Container + Low Cost.
Reality Check: A rigid hull capable of safe 10-20nm open ocean runs in 3-4ft seas with 6 people *cannot* fit inside a 45' HC container alongside your 44ft triangle frame and 3 foil legs unless it is **inflatable/semi-rigid** or **nested on deck during transit** (not inside container).
Recommendation: Do not try to put a rigid "Rescue Boat" in the container. Instead, specify a **Heavy-Duty 5.0m–5.5m (16–18ft) Hypalon RIB** that rides **on the seastead's aft walkway/dinghy cradle** during ocean transit (shipping as "Deck Cargo" on the delivery ship) OR tow it behind the seastead during delivery.
This matches the "Anguilla Standard" (Twin engines), handles 3-4ft chop safely at 25kts, carries 6 + gear, and serves as the primary "Abandon Ship" platform.
| Item | Cost (USD) | Notes |
|---|---|---|
| 5.3m Hypalon RIB (OEM Direct, ORCA 866) | $14,000 – $19,000 | FOB China. Includes Console, Jockey Seat, Nav Lights, Bilge. |
| Ocean Freight (Deck Cargo / Flat Rack) | $3,000 – $5,000 | Does NOT fit in 45' HC with seastead. Ships separately on same vessel. |
| 2x Tohatsu 30HP EFI + Controls + Props | $11,000 – $13,000 | US Retail ~$7k/ea. Buy in US/Caribbean to avoid EPA import hassle. |
| Rigging (Cables, Battery, Fuel Tanks, Safety Gear) | $2,500 | |
| Total Tender Package | $30,500 – $39,500 | ~$5k/person capacity. Best value for "Lifeboat + Tender". |
There are **zero** Chinese manufacturers with valid **SOLAS MED (Wheelmark)** or **ISO 9650-1 Type 1 (24hr+)** certification recognized by major flag states or insurers. Chinese "ISO 9650" rafts are often Type 2 (<24hr) or counterfeit certificates.
Since this raft is your **last resort** (Seastead sinks/capsizes/fire), buy a **Major Brand (Revere, Zodiac, Plastimo, Viking, Ocean Safety)**. It is the cheapest insurance you will buy.
Why 6-Person? You have 4-6 crew. A 4-man raft is tight with gear/EPIRB. 6-man offers survival space. Type 1 = Double Floor (Insulation), Boarding Ramp, Large Ballast Bags, 24hr+ Pack.
| Model | Capacity | Standard | Weight (Canister) | Dim (Canister LxWxH) | Approx Price | Service Interval |
|---|---|---|---|---|---|---|
| Revere Coastal Commander / Ocean 6 | 6 Person | ISO 9650-1 Type 1 | ~48 kg (106 lbs) | 76 x 48 x 30 cm | $2,800 – $3,200 | 3 Years |
| Zodiac Open 6 (ISO 9650-1) | 6 Person | ISO 9650-1 Type 1 | ~52 kg (115 lbs) | 78 x 50 x 32 cm | $3,100 – $3,500 | 3 Years |
| Plastimo Transocean 6 | 6 Person | ISO 9650-1 / SOLAS B | ~55 kg (121 lbs) | 80 x 50 x 33 cm | $3,300 – $3,800 | 3 Years |
| Viking RescYou Pro 6 | 6 Person | ISO 9650-1 Type 1 | ~50 kg (110 lbs) | 77 x 48 x 31 cm | $3,000 – $3,400 | 3 Years |
Budget **$600–$900 every 3 years** for servicing (re-certification, gas check, repack). Must be done at certified station (St Martin, Antigua, Tortola, PR, FL). Factor this into OpEx.
| System | Est. Cost (USD) | Est. Weight (lbs) | Shipping Method | Key Decision |
|---|---|---|---|---|
| Dinghy (14ft Elec) | $16k – $22k | ~450 (Hull+Motor+Batt) | Inside 45' HC Container | Chinese OEM Hypalon RIB + Yamaha HARMO |
| Tender (17ft Twin Gas) | $31k – $40k | ~1,300 (Ready to Run) | Deck Cargo / Flat Rack (Separate) | Chinese OEM Hypalon RIB + 2x Tohatsu 30HP |
| Liferaft (6 Man) | $3,000 – $3,500 | ~110 (In Canister) | Inside Container (or Air Freight) | Major Brand (Revere/Zodiac) ISO 9650-1 Type 1 |
| TOTAL | $50k – $65k | ~1,860 lbs | ~10% of $500k Build Budget |