alacrity sailboat

The Alacrity 19 was designed in 1960 by Peter Stevenson. It was an open plan, relatively beamy yacht and they were built by Hurley Marine for the Essex based Hurley agent Russell Marine Ltd. They performed well but the accommodation and headroom were limited, but at least one has crossed the Atlantic.

The Alacrity was built in great numbers and was marketed as a Hurley for one year - 1969. Hurley did not just mould the hulls for Russell Marine but completed the whole yacht ready to take to sea. Russell Marine built them alone after about 1972.

Peter Stevenson's wife, Norma, has recently been in touch with the Association (Sep 2014) and has sent us the following message

I am delighted to know about the Alacrity; my husband Peter Stevenson designed her, then sold the drawings to Hurley and so didn't receive any royalties, Even so, I am pleased that the boats are still sailing. Should you require any more information I'll be happy to send it to you. Before we were back in Burnham we were in the West Indies with our Colin Archer double-ender, Happy Days! I attach a picture of Peter Stevenson (he's the one in the foreground) sailing an Alacrity. (The picture is above, click on it to see a larger version)

The Alacrity 19 was stretched by 18" and became the Vivacity 20. The re-design was by DC Pollard. The model was changed several times during its production run. Russell Marine joined forces with Catalina Yachts of the USA and also produced the Alacrity 21, Alacrity 22/670 and Vivacity yachts. The Alacrity 22/670 was a very different yacht to the 19 that Hurley Marine built. The 22 evolved and was later known as the Jaguar 22 in the UK, Catalina 22 in USA and Lynx in France. It was also built in Spain. Russell Marine eventually renamed themselves as Jaguar Yachts.

Whilst building the Alacrity 19 Hurley Marine also built a large range of similar yachts. These included the Signet 20 (built for a Welsh company but also marketed as a Hurley for a while), Silhouette, Hurley 18, Felicity 20, Hurley 20, Hurley 22, Hurley 24.

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Sailboat Guide

1965 Hurley Alacrity 19

Description

Seller's Description

Sailed the past 11 seasons including 2022. Just off the mooring last week and now on the trailer. Lost storage; must go! Free! Hurley Alacrity 19. Three 6 foot berths in cabin. Three mains, all 3 good. Three good hank-on jibs. Two anchors. All bronze turnbuckles. Solid fiberglass; no soft spots! Rub rail, top sides, and bottom painted annually. Needs deck painted; little else needed. Not a salvage; fair to good condition. Seaworthy, stable, and easy to sail. Clear title. Road ready and currently registered trailer.

You must move promptly. Include phone number and email, please and thanks.

https://sailboatdata.com/sailboat/alacrity-19

Can include Yamaha 2 cycle outboard; engine price negotiable!

Rig and Sails

Auxilary power, accomodations, calculations.

The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.

Classic hull speed formula:

Hull Speed = 1.34 x √LWL

Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio .311 Hull Speed = Max Speed/Length ratio x √LWL

Sail Area / Displacement Ratio

A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.

SA/D = SA ÷ (D ÷ 64) 2/3

SA : Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
D : Displacement in pounds.

Ballast / Displacement Ratio

A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.

Ballast / Displacement * 100

Displacement / Length Ratio

A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.

D/L = (D ÷ 2240) ÷ (0.01 x LWL)³

D: Displacement of the boat in pounds.
LWL: Waterline length in feet

Comfort Ratio

This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.

Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam 1.33 )

D: Displacement of the boat in pounds
LOA: Length overall in feet
Beam: Width of boat at the widest point in feet

Capsize Screening Formula

This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.

CSV = Beam ÷ ³√(D / 64)

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