Force 7 Ocean Wave

[CarlosK2]

- I think ... if we put a "rear wing" on it ... we would transform it into a Formula 1.

The funny thing about the case is that the honest 'Seat 600' reached a top speed of 20 knots in a tremendous surf controlled by a clumsy autopilot with little more brain than a crystal radio.

 

[CarlosK2]

(Here I had put a music video from 1975 created today)

Music that never existed, this phenomenon that has just been born with artificial intelligence is surprising.

My fantasy is a MiniTransat type sailboat that would have been possible in 1979.

A small step forward following American Express

https://www.histoiredeshalfs.com/Histoire des Minis/49.htm

 

[CarlosK2]

Hull: 10 mm Plywood Okume, and i think the frames (and the deck) could be made of 15 mm Paulownia and thus not waste the grain orientation, and we would achieve the objective of 400 kg

Pogo 1
139-144-155 D/L
WindSurf 599
127-131-144 D/L

Fiber

Bottom: 800 g/sqm
Topside: 400 g/sqm (500 g/sqm)*
Deck: 200 g/sqm

*: Tejidos https://www.castrocompositesshop.com/es/81-tejidos

Rudder, StaySail Boom, MainSail Boom

Ash

Bowsprit

WindSurfer Mast

 

[CarlosK2]

- A sailboat to enjoy. You're completely crazy. What's next? Adding a motor? You're ruining our glorious tradition of wooden boats and iron men.

---

Motor

A) Honda 2.3
B) Honda 2.3 Copy
C) Haswing Protruar 3.0 12 volt

PROTRUAR BRUSHLESS MOTOR 3.0 12V https://haswingoutdoor.com/products/protruar-brushless-motor-3-0-12v

D) Protruar 3.0 24 volt
E) Protruar 5.0 24 volt

In any case 2 x 100 w solar panel, because one port and one starboard

(You can't imagine how many hours I've wasted trying to fit 1 fuxxx solar panel on the deck)

(The little Suzuki is more powerful; but the Honda is my favorite)

 

[skaraborgcraft]

I have seen an 80 ton Baltic Trader towed cross an anchorage by an inflatabubble with a 2.5hp Yamaha.

 

[CarlosK2]

Let's assume a case: crossing the Barbuda lagoon against a strong trade wind.

(And a 24-volt battery weighs 20 kilos)

The most logical thing to me seems to be plan A and plan B.

 

[CarlosK2]

Anchor

Richard Danforth-type anchors are magnificent and very inexpensive.

But with their very long blades, they don't fit: the anchor hangs angled at the bow on a steel rail, and since it's a very small and light boat, it only has a line without a chain, and the anchor can be lowered and raised without stepping on the deck.

I've had a Mantus M1 for years, and I'm very very happy: it's a magnificent anchor, although it's expensive.

Mantus Anchors: The best setting boat anchor https://www.mantusmarine.com/mantus-anchors/?srsltid=AfmBOopv8v9WM9SOQ82T3Lp2zBgAQurnwDVxb8AnO67o8HAgrbx3FwAT&v=28886f13f578

 

[CarlosK2]

Electronic

VHF (Stern)
AIS B+ (Mast)

7" KP-27A with AIS Transceiver. Latest model https://avesmarine.com/7-kp-27a-ais-transceiver

Radar Reflector 10 cm x 50 cm (Stern)

REFLECTOR RADAR MOBRI M4 https://nauticlick.com/es/reflectores-de-radar-marcas-y-senales/347-reflector-radar-mobri-m4.html

White Led 5w (Stern)

 

[gonzo]

I think it comical that this lengthy thread is mostly you agreeing with yourself.

 

[skaraborgcraft]

I think it comical that this lengthy thread is mostly you agreeing with yourself.

If you feel the need to attack people, I suggest you go to the WBF and have at it.

 

[skaraborgcraft]

Since when did radar reflectors get so expensive? I always fitted Firdell Blipper as i was consistently told i had a good "contact" by watch keepers on large commercial shops. Perhaps an AIS transponder is the way forward.

 

[CarlosK2]

Yes, all these devices aren't worth their price.

It's mostly to maintain symmetry with the VHF antenna, haha

It's a large reflector, and I found a very interesting study, and it sort of works. There aren't many options; the active one is very expensive.

(The bitter and ignorant on duty deserves a psychiatric examination)

 

[gonzo]

If you feel the need to attack people, I suggest you go to the WBF and have at it.

Right. I owe an apology.

 

[CarlosK2]

With the radar reflector and the 5-watt all-round white light, we have reached the end.

 

[CarlosK2]

1 Ton
Plywood Epoxy WindSurfer
Still photo at the moment of takeoff

0.60 Froude
8.8 knots

Bow +2.4° Up

A: 3696 Newtons
B: 1023
W: 2100
H: 5227
D: 1438 Newtons

Residual resistance calculated by the model: 898 Newtons

Residual resistance calculated by the last Delft polynomial formula: 897 Newtons