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The Light Aircraft Association (LAA) is the UK’s principal representative body for amateur-built and vintage light aircraft, as well as supporting some factory-built microlights and gyroplanes. WELCOME TO THE LIGHT AIRCRAFT ASSOCIATION Welcome to the Light Aircraft Association, the heart of a community that lives and breathes recreational aviation in all its forms! With over 75 years of history, no other UK association has the depth of knowledge and experience in looking after our sport. 7,500 Members 2,700 Aircraft 1,600 Build Projects NINE REASONS TO JOIN THE LAA 1 BUILD YOUR OWN AIRCRAFT The LAA was formed out of the amateur aircraft building movement. Even today, you can build an aircraft from the original plans or purchase a modern kit from a recognised manufacturer to build your dream aircraft, with the support of an LAA Inspector. There are so many types to choose from! More Info 2 PILOT COACHING The Pilot Coaching Scheme includes provision of Biennial Reviews and Class Rating Revalidation, as well as Type Conversions, Renewal Training, Differences Training and Licence Migration. Coaches are based all over the UK and willing to travel to meet your needs! More Info 3 LIGHT AVIATION MAGAZINE Our full-colour monthly magazine, Light Aviation , is free to all members and is packed with a wealth of technical and flying information, first-hand reports of members’ flying adventures and aircraft builds, in depth flight tests and so much more – it’s real cover to cover reading every month! More Info 4 ENGINEERING FACILITIES At our core is the amateur built aircraft movement and the comprehensive engineering facilities that support the Permit to Fly airworthiness system. A full time staff of qualified engineers and a countrywide network of Inspectors help make owning and flying your own aircraft both possible and affordable. More Info 5 TRAINING COURSES The LAA provides a wide range of courses for members, ranging from electrics to working with aluminum, aircraft carpentry, composites, Rotax engines or even an Air to Ground Radio Operators' Course! These will help you build or maintain your aircraft to the highest standard and meet LAA members with similar interests. More Info 6 OPERATE AN AIRCRAFT With the LAA fleet size ever increasing, more and more LAA members are operating LAA aircraft that they have not built under the LAA Permit to Fly Airworthiness System. The LAA Engineering Department offers the support you need to fly! More Info 7 MEET FELLOW AVIATION LOVERS! Do you want to meet fellow light aviation lovers? Clubs for LAA members (also known as Struts) meet at a local level to share knowledge and experiences, as well as take part in local events. You can find the 'Strut' nearest to you! More Info 8 MEMBER DISCOUNTS Every year, the LAA hosts a 'fly-in,' known as the 'LAA Rally' or more recently, the 'Grass Roots Fly In.' LAA members benefit from a discounted entry fee! Furthermore, there are a number of LAA-friendly companies that offer discounts and deals to LAA members. These can be found by clicking the button below. More Info 9 MEMBER REPRESENTATION We have an enviable reputation for determination and fairness within the corridors of power in the UK and Europe. We are one of the principle representative groups providing balanced consultative input on matters such as airspace, planning and safety regulation to bodies including the Department for Transport and Civil Aviation Authority. More Info Contact Us Turweston Aerodrome Nr Brackley Northants NN13 5YD Office Phone No: +44 (0)1280 846 786 Office email: [email protected] Engineering email: [email protected] Our office opening hours are Monday to Friday, 9am to 5pm Download Map Local Accommodation

Armstrong/Isaacs Bursary Winners of 2026 Bursaries below. Five bursaries of up to £1,500 are offered every year to support young pilots already in PPL training. To qualify for these bursaries you must be under 30, are required to already have reached ‘first solo’ standard, have completed a minimum of five hours solo training and have gained the necessary medical and ground qualifications to continue your training. Rose Solley (above - left) A flight in my Grandfathers Jodel D117 was where it all began for me. I was lucky enough to have that first trial experience of flying when I was 12, followed by my first lesson when I passed my GSCE at 15. Because I loved my initial experience so much I was determined to find a way to fulfil my dream of being a pilot. Knowing that gaining my PPL would be a costly challenge I knew it was going to take a long time to complete. Coming from a farming background and enjoying working with livestock, I was able to get a job at our neighbouring dairy farm. This gave me flexibility with working hours and also the finance I needed to fund my PPL, the journey so far has taken 5 long years and the LAA Armstrong Isaacs bursary will enable me to complete the challenge I set myself of becoming a female Pilot. Iain Kirkham (above - right) I began my passion for flying at a young age, taking every opportunity to fly with my dad in his Escapade and more recently his Sling 2 taildragger. At first, I found flying an aircraft to be both intimidating and exciting but also rewarding as well as giving a sense of freedom and this motivated me to obtain my PPL. During the holidays whilst studying for an Engineering degree, I decided to start my PPL training in a Sonaca S200 at Blackbushe airport. I am now aiming to complete my solo x-country which has been delayed over the past two months due to bad weather and thanks to the LAA bursary I hope to complete my PPL training in the next few months. After my PPL I intend to become a member of the LAA and do a taildragger conversion course so that I can fly the Sling 2 taildragger and go touring in an aircraft that I helped my dad to build. I would like to thank the LAA and am very grateful for the opportunity the LAA has given me enabling me to pursue my passion and love of flying. Kate Lee (below - left) I am an Aerospace engineering graduate and have just started my PhD looking in to sustainable aviation solutions. I am passionate about combining my interests in sustainability and aviation and am focussing my current work on some of the challenges associated with developing hydrogen gas turbine engines for planes. I was fortunate to start working towards my PPL whilst completing an internship at Kemble airport. I love the feeling of freedom of being in the air, and find it very motivational for my work, as it’s a feeling I believe as many people as possible should be able to experience. The bursary should ensure I’m able to complete my PPL course this year before my theory tests expire! I’m very grateful to the LAA Armstrong/Isaacs Bursary for this support in realising my goal of completing my PPL. Armstrong/Isaacs bursaries are funded from the Armstrong/Isaacs Fund, which is based on a major donation from David Armstrong, who was a founder member of the original ULAA in 1947, a lifelong member of the LAA’s predecessor the PFA and the latter’s chairman from 1960 to 1964. His legacy, co-named with that of aircraft designer and builder John Isaacs, has, since 1998 enabled many young prospective pilots to gain their PPL.

Weight & Balance The subject of Weight and Balance covers at least four distinct procedures: weighing an aircraft, calculating its empty weight and centre of gravity (CG), establishing the worst forward and aft CG loading cases according to an appropriate design code and calculating weights and centres of gravity for an actual flight. This section includes guidance notes on each of these aspects, forms and worked examples (imperial or metric) for recording and calculating empty weight and CG, as well as worst forward and aft CG cases and an Excel based spreadsheet that makes the weight and CG calculations for you. The table on the spreadsheet is set out in the same layout as the Loading Examples tables. This spreadsheet can, of course, also be used for carrying out calculations for an actual flight. Simply input the actual weights of the items to be loaded rather than the standard occupant or maximum fuel and baggage weights. Remember, it is important to check that the CG remains within limits with no usable fuel as well as with the loaded fuel in the tanks, even though it will not be your intention of running the tank dry. The calculator generates two sets of weight and CG values for this purpose. Weight & Balance arrangements for gyroplanes are different to those of aeroplanes and a special type of report is used, unless the manufacturers concerned provides their own special schedule in which case this should be used instead. Before accessing the documents below, please ensure you have read Technical Leaflet 3.16 - Weight and Balance Guidance Notes . Technical Leaflet 3.16 Other useful documentation is as follows: Weight & Balance Forms Weight and Balance Example Forms Weight and Balance Excel Calculators

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< Back CAA MPD-2026-003-E – Rotax 912/914 Series Engines 6 Jul 2026 Propeller Gearbox Inspection (Rotax 912/914 Series Engines) Please note that the UK Civil Aviation Authority (CAA) has published Emergency Mandatory Permit Directive MPD-2026-003-E, which was issued on 30 th June 2026 and became effective on 07 th July 2026. The directive applies to Rotax 912 UL, 912 ULS, 912 iS Sport, and 914 UL series engines fitted with affected propeller gearboxes as defined in the MPD. The MPD mandates inspection of the affected propeller gearboxes due to a potential assembly process deviation that could result in oil loss and/or an in-flight engine shutdown. Please note for the most seriously affected engines mandatory action is required BEFORE THE NEXT FLIGHT. Please review the MPD to determine whether it applies to your aircraft or engine and ensure that the required inspection and any necessary corrective actions are completed within the specified compliance times. If you have an engine of one of the effected types, please note the pink pages of the engine logbook should have a new entry made for this MPD, either on the applicable or non-applicable page, as appropriate. The directive (MPD-2026-003-E) for your reference and can also be found HERE or below. The Rotax Alert Service Bulletin containing the list of affected Rotax engines and their serial numbers is available via the following link HERE and is also provided as an attachment below. MPD-2026-003-E - Rotax 912, 912 i and 914 (series) engines .pdf Download PDF • 236KB ASB_A-2026-001R01 - Inspection of the propeller gearbox for ROTAX 912,914 and 912i Series .pdf Download PDF • 1.46MB Next Previous

< Back Engineering updates in February and March 11 Apr 2025 The following documents have been issued/updated in the Engineering 'Info Library' during February and March. Technical leaflets : TL 1.10 - List of aircraft parts and materials suppliers TL 2.01 - A guide to LAA aircraft ownership TL 2.22 - Non-type specfic MPDs TL 3.25 - Flight test briefing Continuing airworthiness information : Alert A-01-2025 - Piper rudder post Alert A-02-2025 - Rotax crankcase Alert A-03-2025 - Gen 4 Jabiru 2200 and 3300 engines TADS : Brandli Cherry Cessna 120 Eurostar Groppo Trail Rans S5 (204 and 204B) Rotax 4-stroke Sportcruiser Next Previous

< Back Mandatory Technical Directive issued for Eurofox aircraft 6 Dec 2024 Inspection of Trim Tab Operating Cable Attachment to Prevent In-Flight Failures and replacement with Improved Design of Cable Attachment In 2016, the LAA issued an Alert, LAA/AWA/16/08 , regarding reported problems with the thin stranded steel elevator trim cable on Eurofox aircraft fraying at the attachment point to the trim tab operating horn, where the design forced the cable to be bent around the sharp edges of the clevis. The 2016 Alert also provided a link to, and served to promulgate, the Eurofox UK Service Bulletin on the subject, SB 04/2016 . Recently we’ve been advised of a potentially serious incident of elevator flutter on a Eurofox while towing a glider, which was caused by the trim cable failing altogether in flight where it passes around the trim tab operating horn clevis. This resulted in violent shaking of the elevator with serious potential for structural damage or loss of control. Since the cable had evidently frayed considerably before failing altogether, this occurrence highlights the importance inspecting the trim cable for signs of fraying at this point at each pre-flight and maintenance check, and, as the service bulletin explains, of keeping the clevis free-moving about its attachment to the tab so the clevis remains in line with the cable as the tab moves. This minimises the relative movement between the two which if occurring, would accelerate the wear on the cable. Eurofox UK advises that since the issue of the 2016 Service Bulletin, they have revised the design of the cable attachment clevis so that the cable now passes around a circular bush rather than being forced into two sharp bends, which reduces the wear on the cable and tendency to fray and eventually break. MTD-07-2024 , issued today, requires Owners/Operators to check whether the old or new design of clevises are fitted and for any signs of trim cable fraying before further flight. Owners/Operators must obtain and use a copy of the up-issued AEROPRO Checklist - B Service/Maintenance plan (Update Nov 2024 LAA aircraft) before the next 50-hour check. Finally, the trim cable system must be replaced immediately if any trim cable fraying is found, as detailed in the MTD. Furthermore, all Eurofoxes with the old-style of clevis must have the trim cable system replaced, as described in the MTD, by 1st June 2025. MTD-07-2024 Eurofox Trim Cable .pdf Download PDF • 495KB Next Previous

< Back New LAA Inspector - Andrew Williams 31 Mar 2025 We are pleased to welcome Andrew Williams as a new LAA Inspector, having attended an LAA Inspector Assessment Day at Turweston recently. Andrew has been involved with aircraft maintenance for approximately 36 years. Types he has worked on include Rolls-Royce Dart and Pratt & Whitney PT6-powered passenger and freighter aircraft, followed by working on short-to-medium range jet aircraft. For the last 10 years, Andrew has been involved with general aviation single and twin-engined aircraft, carrying out maintenance and certification. He holds a CAA approval to perform Airworthiness Reviews in order to issue Airworthiness Review Certificates. His qualifications include: CAA Part 66 Licence, inc. Full Group 3 and a BCAR Sec L Licence. In the LAA ‘world,’ Andrew has a share in a Jodel 1050. Congratulations Andrew. Welcome to the team! Next Previous

< Back Armstrong-Isaacs Bursaries for 2026 21 Nov 2025 Armstrong-Isaacs bursaries for 2026! The LAA is proud to announce the opening of applications for its Armstrong-Isaacs bursaries for 2025. Five bursaries of up to £1,500 are offered to young pilots already in PPL training, offering extra funding to help them complete their courses, at a time when, all too often, money starts to run out. More information on the bursaries can be found here . Next Previous

< Back LAA Alert issued for Lycoming Engines 28 Nov 2024 The LAA has issued Alert A-02-2024 (link below) to highlight the recent Lycoming Airworthiness Directive regarding connecting rod bushings and connecting rod assemblies. The FAA has issued a new airworthiness directive (AD) for models of Lycoming engines that have an affected part installed and are assembled within the ship date range, as specified in Table 1 to paragraph (c) of this Airworthiness Directive (AD 2024-21-02). The AD comes into effect on 5th December 2024. This AD was prompted by several reports of connecting rod failures which resulted in uncontained engine failure and in-flight shutdowns. The AD requires repetitive oil inspections for bronze metal particulates at each oil change, and if found, additional inspections of the connecting rod bushings for damage, proper fit, movement, and wear, and replacement if necessary. The first oil inspection must take at the next oil change or within 4 months after the AD becomes effective i.e. 5th April 2025, whichever occurs first. As terminating action to the connecting rod bushing inspections, this AD requires replacement of the connecting rod bushings with parts eligible for installation. LAA A-02-2024 - Lycoming Connecting Rod Assemblies .pdf Download PDF • 203KB Next Previous

LAA Member Discounts

< Back Mandatory Technical Directive issued for Pioneer aircraft 6 Mar 2024 The control horn on the elevator trim tab on a Pioneer 300 failed in flight, which resulted in sever trim tab flutter. A safe landing was made and there was no further damage to the aircraft. MTD-02-2024 requires the checking of this horn on all Pioneer variants to ensure that it is of the correct design standard and recommends regular checks for free-play in the system. Next Previous