Please call us on
01297 20744Telephone lines open 7 days a week 9.00am to 5pm
Quantity:
Rodkickers and Boomstruts are a practical, user-friendly concept for supporting the weight of the mainsail boom on a sailing yacht, preventing it from dropping to the deck.
Barton Boomstruts and Selden Rodkickers (with a Gas Spring...
Rodkickers and Boomstruts are a practical, user-friendly concept for supporting the weight of the mainsail boom on a sailing yacht, preventing it from dropping to the deck.
Barton Boomstruts and Selden Rodkickers (with a Gas Spring fitted) effectively obviate the need for a topping lift.
The advantages of a rigid boom support system:
The knock-on effects can be extremely beneficial:
N.B. Depending on the specification of the line, an existing topping lift may serve as a spare halyard.
Jimmy Green offer two different design concepts in rigid boom vangs, also referred to as boom support systems.
They are both from top manufacturing brands, one from Barton and one from Selden.
There are essentially only three major parts - a pair of coated fibreglass rods, secured together at each end with a set of removable clamps, a mast end bracket and a boom end bracket.
Fitting the brackets is relatively simple regardless of the spar manufacturer, especially the mast end which slots into the luff groove.
The clamps and end fitting brackets are manufactured from Spectro Grey Anodized Aluminium and 316 marine grade stainless steel.
The Barton Boomstrut should be fitted inside the triangle created by the existing kicking strap, although some adjustment may be needed on some rigs.
The vang can remain unchanged, but is still a fundamental necessity. However, the topping lift may be consigned to the role of a spare line.
Barton | Boat Length | Pin to pin length | Max rod reduction | Max initial adjustment | Force |
---|---|---|---|---|---|
44001 | Dinghy | 762mm | 125mm | 250mm | 35kg |
44010 | 6m | 960mm | 150mm | 300mm | 90kg |
44020 | 6-7.5m | 1070mm | 150mm | 300mm | 140kg |
44030 | 7.5-9m | 1180mm | 150mm | 300mm | 185kg |
44035 | 9-10.5m | 1320mm | 150mm | 400mm | 230kg |
44040 | 10.5-12m | 1450mm | 150mm | 400mm | 270kg |
Pin to pin length = actual length of the boomstrut
Max rod reduction = The maximum amount the boomstrut rods can be shortened in order to fit inside the vang area.
Max initial adjustment = The maximum amount of available pin-to-pin travel when flexed.
Force = The vertical downward pressure that the boomstrut will support at the point of the boom fitting attachment.
The Selden optional lifting ram or gas spring is a sealed compressed air unit.
The integral 2:1 wire purchase system runs from the bottom of the rod around the top sheave and culminates in a free end (made off with a stainless steel thimble eye) to which a kicking strap (or vang) tackle should be connected.
The 180° turn in the wire part of the Rodkicker doubles the power of the vang, and by the same token, reduces the load by 50%.
The Kicking Strap tackle is not supplied as part of the Rodkicker, but you should be able to use your existing kicking strap blocks and line (subject to an adjustment in length) because, due to the integral wire, they should be stronger than the Selden recommendation.
Universal, as well as Selden specific, boom and mast brackets are available if the rodkicker ends do not fit straight on to your existing kicking strap attachment points.
The Jimmy Green Rigging Sales Team are on hand to help you find the correct part number.
A study of the Selden charts below confirms that their recommended specification for the blocks on a normal Kicking Strap is higher than those on a Rodkicker Tackle.
The Selden recommendations are based on a combination of Yacht Length Overall and Righting Moment calculated at 30% of heel.
Righting moment is a measure of a yacht's ability to carry sail and is approximately proportional to displacement.
Selden use righting moment as a major factor in their recommended specifications right across the spectrum of rigging applications and hardware, so it is extremely useful to know the answer for your own yacht.
You will need to enter your Beam in mm, Draft in mm, Displacement in kg, Ballast in kg, whether it has a bulb or wing keel and the number of crew members normally on the rail:
Selden Righting Moment Calculator
Rodkicker Model | Maximum Righting Moment | Maximum Displacement | Current Selden Boom Section | Previous Selden/Kemp Boom Section | Boom Height | Minimum Length | SWL |
---|---|---|---|---|---|---|---|
Type 05 Standard | 12.5kNm | 2.5 tonnes | B087-B120 | 86/59-111/75 | < 900mm | 1150mm | 8kN |
Type 10 Standard | 25kNm | 5 tonnes | B087-B152 | 86/59-111/75, 128/90 | ≤ 1100mm | 1360mm | 12kN |
Type 10 Long | 25kNm | 5 tonnes | B087-B152 | 86/59-111/75, 128/90 | > 1100mm | 1670mm | 12kN |
Type 20 Standard | 50kNm | 9 tonnes | B171-B200 | 150/105-189/132, 206/139 | ≤ 1400mm | 1720mm | 18kN |
Type 20 Long | 50kNm | 9 tonnes | B171-B200 | 150/105-189/132, 206/139 | > 1400mm | 2260mm | 18kN |
Type 30 Standard | 120kNm | 20 tonnes | B200-B250 | x | ≤ 1800mm | 2200mm | 38kN |
Type 30 Long | 120kNm | 20 tonnes | B200-B250 | x | > 1800mm | 2700mm | 38kN |
Rodkicker Model | Maximum Righting Moment | Maximum Displacement | Current Selden Boom Section | Previous Selden/Kemp Boom Section | Boom Height | Minimum Length | SWL |
---|---|---|---|---|---|---|---|
Type 05 Standard | 15kNm | 3.9 tonnes | B087-B120 | 86/59-111/75 | < 900mm | 1150mm | 8kN |
Type 10 Standard | 35kNm | 6 tonnes | B087-B152 | 86/59-111/75, 128/90 | ≤ 1100mm | 1360mm | 12kN |
Type 10 Long | 35kNm | 6 tonnes | B087-B152 | 86/59-111/75, 128/90 | > 1100mm | 1670mm | 12kN |
Type 20 Standard | 70kNm | 11 tonnes | B171-B200 | 150/105-189/132, 206/139 | ≤ 1400mm | 1720mm | 18kN |
Type 20 Long | 70kNm | 11 tonnes | B171-B200 | 150/105-189/132, 206/139 | > 1400mm | 2260mm | 18kN |
Type 30 Standard | 160kNm | 25 tonnes | B200-B250 | x | ≤ 1800mm | 2200mm | 38kN |
160kNm | 25 tonnes | B200-B250 | x | > 1800mm | 2700mm | 38kN |
Boom Height is denoted and measured as per XBH, see image below
SWL = Selden Safe Working Load
There is more detailed Selden information on sizing including comprehensive charts on normal, hard and extra hard gas springs, see below.
Selden Rodkicker Information and Size Guide
If you are still uncertain which model and/or gas spring is best suited to your yacht, please contact the Jimmy Green Rigging Sales Team with your yacht details for a reassuring check by the Selden experts.
Set sail with the benefit of Team Jimmy Green expertise. We are confident that you will look forward to our emails.
100% Secure Payment with
When you visit any website, it may store or retrieve information on your browser, mostly in the form of 'cookies'. This information, which might be about you, your preferences, or your internet device (computer, tablet or mobile), is mostly used to make the site work as you expect it to.
Necessary cookies help make a website usable by enabling basic functions like page navigation and access to secure areas of the website. The website cannot function properly without these cookies.
Name | Provider | What it does | Expiry | Allow(Check all) |
---|---|---|---|---|
Shopping cart | PrestaShop | This provides, and keeps the products inside your shopping cart. Deactivating this cookie would stop permitting the orders. This cookie doesn't save any personal Data about any shop client.This provides, and keeps the products inside your shopping cart. Deactivating this cookie would stop permitting the orders. This cookie doesn't save any personal Data about any shop client. | 30 days |
Preference cookies enable a website to remember information that changes the way the website behaves or looks, like your preferred language or the region that you are in.
Name | Provider | What it does | Expiry | Allow(Check all) |
---|---|---|---|---|
Language Selector | PrestaShop | Cookie we use to offer you the possibility to switch the language of our contents. If cookie is disabled you'll see the site in the original language.Cookie we use to offer you the possibility to switch the language of our contents. If cookie is disabled you'll see the site in the original language. | 30 days | |
Currency Selection | Prestashop | Cookie which makes possible to choose the currency you would like. If disabled the store default currency will be shown.Cookie which makes possible to choose the currency you would like. If disabled the store default currency will be shown. | 30 days |
Statistic cookies help website owners to understand how visitors interact with websites by collecting and reporting information anonymously.
Name | Provider | What it does | Expiry | Allow(Check all) |
---|---|---|---|---|
Stats Data | Prestashop | A Shop Cookie, which saves data about orders, carts, IP of the clients. The data are kept safe inside the back-office and serve solely as statistical data for improving our services and products.A Shop Cookie, which saves data about orders, carts, IP of the clients. The data are kept safe inside the back-office and serve solely as statistical data for improving our services and products. | 30 days | |
Google Analytics | Standard tracking, which makes our store understand the need and places to improve our store. The cookie lasts for 30 days.Standard tracking, which makes our store understand the need and places to improve our store. The cookie lasts for 30 days. | 30 days | ||
Google Tag manager | Used by Google Tag Manager to control the loading of a Google Analytics script tag , Adwords and the Hotjar tracking tags.Used by Google Tag Manager to control the loading of a Google Analytics script tag , Adwords and the Hotjar tracking tags. | Session |
Copyright © 2021 Jimmy Green Marine
website by teapot creative