LAA are proud to announce our Rally 2025 sponsors General Information Event Opening Hours 9.30am – 5.00pm each day (Fri & Sat) 9.30am – 4.00pm (Sun) Fly-In Instructions Up to date fly-in instructions can be found here . Please read these before you fly into the Rally. Camping Camping facilities providing basic amenities including hot showers will be available on site. There is ample ground for caravans and motorhomes. The site will be up and running from Thursday afternoon and will close early on Monday morning. Camping passes can be bought in advance via the LAA Shop . In addition to catering provision on the exhibition site, evening food and a bar will be available on the Thursday, Friday and Saturday evenings with entertainment on Friday and Saturday evenings, provided by Leicestershire Aero Club. Parking Please follow the signs to the designated free Rally Car parks. Designated parking will be signed for Disabled and Exhibitor users. You must display a Blue Badge if using Disabled Parking areas - any car without a Blue Badge will be asked to move to the main parking area. All emergency access ways must be kept clear. Please ensure you are familiar with the routes and do not block with vehicles or stock. Please do not block emergency gates onto the airfield. You must ensure that you keep the roadway clear for all other users. Dogs We understand that many visitors wish to bring their dogs with them, we welcome dogs on site. However, as this is an operational airfield, all dogs MUST BE KEPT ON A LEAD when on any part of the site. Dogs are not allowed in the aircraft parking areas. Please ensure you pick up after your dog. Anyone caught allowing their dog to foul without picking up will be asked to remove the dog from site. All dogs must have an identity tag with contact tel no on. WiFi Should you require WiFi, then please bring your own supply. Please be aware that due to the remote location of the airfield, WiFi reception can be unreliable. Water Drinking water is on the campsite and at the tower. There is an outside tap at the tower. Waste We operate a clean site policy and therefore all exhibitors, visitors and traders should remove their own rubbish from their pitch. A skip will be provided on site for cardboard and general rubbish. No electrical or hazardous materials should be disposed of in the skip. Toilets & Shower Facilities Toilets will be provided in the exhibition site, in the aircraft park and on the campsite, together with hot shower facilities. First Aid First Aid cover is provided by an external third party for the duration of the event. In the event of an emergency, please contact them or a member of Leicester Airfield staff. Fire Fire Marshals will be in attendance and should be contacted in the unlikely event of fire. Please ensure all flammable materials are kept away from possible sources of ignition. Dispose of any rubbish in the skips provided. No naked flames are allowed on any exhibition stand or trading stand. Security Regular patrols are carried out by our contracted security staff. e-Scooters No e-Scooters are permitted on site.

Hirth 2 Stroke Covering Letter to Owners Fuel System Inspection Checklist

Preliminary Design Preliminary Design is the stage where the design is sized and developed in outline, leading to a three view drawing, performance and weight predictions. To help with this, LAA has developed a number of spreadsheets. Spreadsheet 1 is used to develop the basic geometry of the proposed aircraft, size the wing, fuselage and tail surfaces and work out some of the key parameters used later. Spreadsheet 2 is used to estimate the performance of the aircraft based on the geometry, initial weight estimates, engine power and guestimates of the drag coefficient and prop efficiency, allowing you to see how the performance is affected by changing each parameter in turn. Spreadsheet 3 is used to work out the critical structural speeds, develop the flight envelope and predict the aerodynamic loads on the main surfaces which can be used to size the structure, and as the basis for a load test program. The weight and balance spreadsheet elsewhere on our website allows the designer to quickly evaluate the implications on weight and cg of different positions for the crew, fuel tanks and baggage bay, and work out what empty aircraft weight and cg he must aim for. Thanks to the simplicity of these programs it takes only minutes to study the implications of changing the aircraft’s specification, for example the effect of changing the wing aspect-ratio, the trade-off between extra weight and cleaning up the airframe drag, extra power etc. Downloadable Spreadsheets Worked Spreadsheet Examples Design Tutorials

Inspector Training Seminars In 2018, the ‘Inspector Training Seminar’ (ITS) scheme was introduced. This means that, in order to continue operating as an Inspector, every Inspector must attend an ITS in the previous four years, as assessed on 31st March each year, as part of their recurrent training. All Inspector Training Seminars for spring 2025 have now been completed, there will be more Seminars planned for Autumn and Winter. Each Inspector Training Seminar is free-of-charge and includes a complimentary lunch. The day runs from 0930 to 1630. Any Inspector is welcome to book onto a seminar, effectively resetting their ITS attendance and therefore, recurrent training, early; but priority will be given to those Inspectors due for review by 31st March 2026. Please contact LAA Engineering for further details of exact venues and booking details.

E5 Mogas Inspection Checklists for Jabiru 2200A, Jabiru 3300A, Rotax 2 Stroke, Rotax 4 Stroke, VW and VW-based engines can be found at the link below Inspection Checklists Other useful documentation is as follows: TL 2.26 Procedures for E5 Mogas use TL 2.20 Fuel Flow Checking Inspection Checks - Fuel Flow Rotax Service Instruction for 912/914 Rotax Service Instruction for 2-strokes Jabiru Service Letter Buy Mogas Placards Cockpit Placard Fuel Filler Placard

MAGAZINE ARCHIVE Our magazine archive is available for all members to view in the Members Area. This is an ongoing project. For our latest magazine, of course, you'll need to be a member. A previous copy of Light Aviation can be viewed by clicking on the link below Light Aviation ENGINEERING INFORMATION Light Aviation magazine keeps you informed of engineering issues to help you ensure that your aircraft is kept in tip top condition. Our 'Engineering Matters' articles will form a vital information source for future reference. Light Aviation Magazine Light Aviation magazine brings you exciting articles about what LAA members are building, restoring and flying. Also included are reports on all the major rallies and GA shows and information about new products and services. ADVERTISING, CLASSIFIED & CONTRIBUTION DETAILS If you wish to advertise in Light Aviation: For display and commercial advertising, please contact Phil Johnston to discuss your requirements. For classified ad queries please contact LAA Office . Classified ads and photos can only be accepted by e-mail . Classified ad fees can be found below. The Editor, Ed Hicks , is always keen to receive your contributions of articles, pictures, technical ideas and letters. Up to 30 words Member: £6 Non-Member: £22 31-50 words Member: £12 Non-Member: £44 Up to 50 words with a coloured photo Member: £45 Non-Member: £60

Light Aviation Magazine 2019 Click on the links below to open each issue of Light Aviation Magazine from 2019 January 2019 April 2019 July 2019 October 2019 February 2019 May 2019 August 2019 November 2019 March 2019 June 2019 September 2019 December 2019

Operating & Maintaining Aircraft This section is intended to cover everything that happens once the aircraft is in a flying state. From a technical point of view, the most import of these is keeping on top of the aircraft’s maintenance. This is critical in enabling an owner to meet their obligation to maintain the aircraft in an airworthy condition. AIRCRAFT MAINTENANCE AVGAS UL91 & UL94 ETHANOL-FREE MOGAS WEIGHT & BALANCE E5 MOGAS REVALIDATING A PERMIT TO FLY 97 OCTANE SUPER-UNLEADED E10 MOGAS - NOT APPROVED

< Back Van's Aircraft laser-cut parts - update 20 Oct 2023 Since our mention of this issue in the August edition of Light Aviation , Van’s Aircraft have been toiling away analysing and testing various structural elements to establish the effect that the laser cutting of parts has had on their strength and fatigue life. Detailed updates can be found on their website, but understandably UK builders and operators are seeking clarity on what the endgame will be on this issue. As the issue generally affects potential fatigue life, there is no immediate need to take action. In discussion with Rian Johnson, Van’s President and Chief Engineer, he tells us that they’re working on service information for the fleet that they expect to be published by the end of the year. Having worked closely with Van’s over many years, our expectation is that we will endorse their position. Next Previous

< Back Alert A-10-2025 - Cracking in E-Props Carbon Propeller Hubs 28 Aug 2025 LAA Alert A-10-2025 - Cracking in E-Props Carbon Propeller Hubs A recent report of a crack appearing on an E-Props carbon composite propeller hub was received by the British Microlight Aircraft Association (BMAA). The crack was in the flange forming the periphery of the circular hub, in the close vicinity of one of the bolts in the outer ring of blade clamping bolts. Alert A-10-2025 shows photographs of the crack discovered and details required actions if cracks are found on LAA aircraft. A-10-2025 is available HERE and shown below. A_10_2025_E_Props_Propeller_Hub_Cracking_Issue_1 .pdf Download PDF • 382KB Next Previous

< Back MTD-05-2025 Issue 3 published - Eurofox Rudder Pedals 7 Jan 2026 MTD-05-2025 Issue 3 has been published to provide further information on the situation as it develops and asking Owners and Inspectors to report back. The inspection schedule in unchanged from Issue 1 or Issue 2. Therefore, Issue 3 does not require you or your Inspector to do anything different. If your aircraft has already been inspected to MTD-05-2025 Issue 1 or Issue 2, then the next time an inspection in accordance with the MTD is due, you Inspector should reference Issue 3 in their logbook entry. LAA is continuing to work towards achieving a permanent solution via a modification to the rudder pedal/torque tube design. MTD-05-2025 Issue 3 is attached below and can be found on the website HERE . 20260107 - MTD-05-2025 Issue 3 - Eurofox Rudder Pedal Cracking .pdf Download PDF • 883KB Next Previous

< Back New LAA Inspector - Mike Wigg 22 Sept 2025 We are pleased to welcome Mike Wigg as a new LAA Inspector, having attended an LAA Inspector Assessment Day at Turweston recently. With a deep passion for vintage aeroplanes, Mike strives to bring joy to all enthusiasts by keeping these remarkable vintage aircraft flying. With extensive engineering experience from both military and civilian sectors, he is dedicated to supporting owners in maintaining their beloved planes. Based near Duxford in Cambridgeshire, Mike travels across the UK and beyond to ensure these classic aeroplanes remain airworthy. If you're an owner in need of maintenance, repair, or inspection, please don't hesitate to reach out! Next Previous