Detail Design Having worked out a promising-looking layout, initial three-view and performance and weight specifications, now is the stage where the hard work begins of transforming concepts to working drawings. Essential decisions have to be made about types of material to be used, the structural arrangement, exact choice of powerplant and so on. You’ll probably need to make a cockpit mock-up to check the ergonomics and control system arrangements, and maybe build a flying radio controlled model of the design to give faith in the handling characteristics. With the basic geometry laid out, stress calculations and assembly drawings come next, then drawings of individual piece parts. Keep an up-to-date tally on weights. As the drawings get more detailed you must re-evaluate whether you are going to meet your original targets in terms of weight, strength and aerodynamic cleanliness, whether you need to re-visit your original assumptions or re-design from scratch. Is there a way that the part or assembly can be made more easily, more cheaply, lighter, stronger, more fatigue or corrosion resistant? Fewer parts and fewer joints generally means fewer problems and less weight. Can you use off the shelf parts rather than having to make them specially? Are there other aeroplanes around that have already solved a particular problem in a clever way? Will the aircraft be easy to inspect in service, easy to repair if it gets damaged? Can it be broken down for transportation? If the handling isn’t quite right when the prototype is test flown, does the design make provision for ‘tweaks’ to put it right? Does the design include reserves of strength to cope with weight growth in service and more powerful engines, or is everything pared down to the minimum? Design Tutorials

Engineering Fees Project Registration Kit-Built Aircraft - £373 Plans - Built Aircraft - £54 Initial Permit Issue Up to 450kg - £750 451-999kg - £857 1000kg & above - £964 Permit Revalidation Up to 450kg - £283 451-999kg - £336 1000kg & above - £368 Note: For FBGs - if the last Permit revalidation was not administered by the LAA, an extra fee of £160 applies Modification & Repair Application Modification & Repair Applications (except Repeat Mods) - min £107 Hourly rate beyond 2 hour's work - £59 Repeat Modification Application - £54 Hourly-rate beyond 1 hour's work - £59 STC Modification Application - £54 Transfer from CAA CofA or CAA Permit to Fly to an LAA Permit to Fly Up to 450kg - £298 451-999kg - £342 1000kg & above - £384 Category Change Group A to Microlight - £213 Microlight to Group A - £213 Change of G-registration Fee Issue of Permit to Fly documents following G-reg change - £64 Replacement Documents (ref TL 2.12 ) Lost, stolen etc (fee is per document) - £27 Endorsement of report for replacement logbook - £27 Payment Methods ONLINE You can pay for Engineering Services via the ONLINE SHOP BY CALLING HQ 01280 846 786 with card details BY INTERNET BANKING Account No : 26225220 Sort Code : 60-30-03 Please note, for engineering fees, you MUST quote your aircraft registration. or your payment will not be credited to the correct aircraft record. If paying from abroad, SWIFT code is : NWBKGB2L IBAN code is : GB81 NWBK 6030 0326225220

LAA are proud to announce our Rally 2025 sponsors Other Attractions The LAA Leicester Rally 2025 opens on Friday 29th August at 9.30 am and closes at 4pm on Sunday 31st August. Aircraft Park – Over 600 aircraft, dependent upon the weather are expected to fly-in over the 3 days of the Rally Airside access - a unique opportunity to inspect the aircraft and chat with the owners Large trade-exhibition: everything from a nut and bolt to an aircraft kit Aircraft Covering Display LAA Team present throughout the weekend Pilot Coaching Scheme coaches available to give advice Flea Market: Sell those unwanted parts or buy yourself a bargain! Speakers Corner: Seminars by keynote speakers throughout the weekend Strut Members' Area Outside catering including bar: Selection of fast-food and beverage outlets including bar and ice cream van; seating area Evening Bar, Food and Entertainment provided by Leicestershire Aero Club On-site campsite GASCo's Aircraft Competition LAA Education and Hands on Skills information and advice Full range of LAA clothing and merchandise

Membership Full Plus Category is for members who own, operate or are currently building an aircraft and gives access to LAA Engineering services. (For Group Owned aircraft, at least one member of the group must have Full Plus membership.) Full Category is for everyone else and includes a monthly copy of Light Aviation Magazine and a discount at the annual LAA Fly-In. JOIN THE LAA Member Full - £75 Full Plus - £117 Member Joint Full - £85 Full Plus - £139 Joint members are members who are the partner of a full member or any children under the age of 18 and living at the family house. Under 30 Member Full - £31 Full Plus - £139 Please forward proof of DOB i.e. copy of passport, driving licence or pilots licence. Overseas Member Full - £91 Full Plus - £139 Overseas includes Ireland. Payment Methods ONLINE Via the Member Area / Renew my Membership DIRECT DEBIT You are now able to set up your direct debit online. Please see your renewal or joining page for details. BY CALLING HQ 01280 846 786 with card details NOTE: Permit Revalidation payments are taken ONLINE only through the Permit Revalidation online system BY INTERNET BANKING Please ensure you pay the correct fees for 2026 Account No : 26225220 Sort Code : 60-30-03 Please note, for membership payments, you MUST quote your membership number and your surname or your payment will not be credited to the correct record. For Permit revalidation & engineering fees, you MUST quote your aircraft registration. If paying from abroad, SWIFT code is : NWBKGB2L IBAN code is : GB81 NWBK 6030 0326225220 Important Links RENEW MY MEMBERSHIP MY AIRCRAFT DETAILS MEMBER AREA ADDRESS CHANGE

For part-built LAA projects, the new owner/builder needs to continue following the LAA amateur-build process. For already-flying LAA aircraft, the new owner simply takes on the responsibilities of the old owner for looking after the airworthiness of the aircraft. The restoration of an aircraft might range from dusting off the cobwebs and giving the engine a good service, to a full strip down to component parts and fabricating missing or damaged parts. It is also possible, in some circumstances, to import a part-built or completed aircraft from overseas. This is generally only possible where the type is already accepted by the LAA, the aircraft can be shown to have been amateur-built under a similar regime to that in the UK, and which is readily inspectable to confirm the build standard. A number of LAA types come under the heading ‘orphaned vintage types’. These are types that are no longer supported by their manufacturer and have been deemed ‘orphaned’ by the CAA (e.g. Austers). There are also some types that can elect to operate either on a Certificate of Airworthiness or on an LAA-administered Permit to Fly (e.g. Chipmunks). Buying an Aircraft Not everyone has the inclination, ability or time available to build an aircraft. The only route then is to buy a part-built aircraft for completion, a ready-flying aircraft or an aircraft in need of restoration. When buying an aircraft, the overriding message is ‘Buyer Beware!’ If you’re buying an aircraft that is already flying within the LAA system, you mainly need to satisfy yourself that it’s in an acceptable condition and meets your needs. LAA Inspectors are often happy to look over an aircraft for you to help you make a technical assessment of its condition. Another area you should consider is whether it has enough payload to take you where you want to go. When buying a partially-built aircraft or one from overseas, you need to make sure that the aircraft is eligible to hold a UK Permit to Fly and is in a configuration that the LAA can accept. It is usually a good idea to drop LAA Engineering an email to check before you part with large amounts of money. For further information, click the button below or look in the 'Classifieds' section of the LAA Magazine Click here for more information

Over the years this has led to several commercially successful kitplanes (Europa, Streak Shadow, Sherwood Ranger), as well as designs that have been released for plans-building (Flitzer, Isaacs Fury, FRED) and a whole range of fascinating on-off personal aircraft – the Acro Advanced, Bonsall Mustang, Mickleburgh Sparrow to name just a few. There will always be LAA’ers keen on the ‘retro’ look, but with ever-increasing fuel costs we foresee a greater emphasis in future on aircraft exploring higher efficiency, alternative powerplants (electric?) and renewable materials. High hangarage fees mean that aircraft enthusiasts are more than ever interested in folding or de-riggable aircraft that can be kept at home. Using the information provided by clicking the links below, the LAA hopes to stimulate interest in light aircraft design, help potential designers through the process and encourage the development of high quality designs. With the decline in UK manufacturing over the recent decades, it seems more than ever important to keep alive a thread of creativity and enthusiasm for design and development. For some, the ability to bring a personal design from first concept to a flying prototype provides the ultimate source of satisfaction within the LAA scene. Designing Aircraft Since its formation in 1948, one of the stated aims of the LAA has been to encourage the designing and building of new types of light aircraft. For our own purposes, we in LAA Engineering have been producing a series of Excel spreadsheets to use as tools in the verification of calculations in the many aircraft design submissions we deal with. The spreadsheets have been designed to carry out the various calculations that are necessary during the design of light aircraft. Some of them have been written against specific paragraphs in the design code CS-VLA, whereas others, for example, cover areas related to the development of aircraft undergoing flight testing. In addition, simple spreadsheets for straightforward mathematical calculations have been written. It is for information and educational purposes that these spreadsheets are now available to LAA members on the LAA web site. Use the buttons below for more information on each design stage: Preliminary Design Detail Design Certification/Approval

Light Aviation Magazine 2011 Click on the links below to open each issue of Light Aviation Magazine from 2011 January 2011 April 2011 Juky 2011 October 2011 February 2011 May 2011 August 2011 November 2011 March 2011 June 2011 September 2011 December 2011

LAA are proud to announce our Rally 2025 sponsors Trophies & Awards A number of prestigious Trophies and Awards are judged at the Rally, recognising the many superbly built and restored aircraft that attend. If you would like to enter your aircraft for judging you can do so on arrival. The judging team will be co-located with booking-in. You can, however, download and complete the entry form beforehand. The list of the awards for 2025 can be found here . Complete list of award can be found here . Judging guidelines can be found here . Factory built aircraft less than 35 years old are not eligible. The judging team will ensure you are in all competitions for which you are eligible. The judges sometimes have difficulty finding an aircraft. Owners are therefore urged to download the free`What3Words’ app and use it to show their aircraft’s location when registering. All pilots who wish their aircraft to be judged are asked to display to the marshallers the large J found here . They will then direct you, if possible, to a convenient parking space. Please leave the 'J' visible in the windscreen to help the judges find your aircraft. Judging takes place from 13:30 to 17:00 on the Saturday; therefore, all entries must be received by 13:00 on Saturday.

Light Aviation Magazine 2013 Click on the links below to open each issue of Light Aviation Magazine from 2013 January 2013 April 2013 July 2013 October 2013 February 2013 May 2013 August 2013 November 2013 March 2013 June 2013 September 2013 December 2013

Find a Coach All Coaches are CAA qualified Instructors and CAA 'R' Examiners. They are all highly experienced and generally able to do licence revalidations, differences training, refresher courses and any specialised training. This would be dependent on their own experience of any aircraft type on which training was requested, so please check with the Coach nearest to your location as to their availability to carry out your request. The map below can be increased in size and moved, as required. The icons represent the postal location of the Coach. Clicking on any icon will display a photo, a contact number, a preferred location or home airfield, and a short profile of the Coach you will be looking at. Most Coaches are happy to travel reasonable distances to accommodate your needs.

Light Aviation Magazine 2023 Click on the links below to open each issue of Light Aviation Magazine from 2023 January 2023 April 2023 July 2023 October 2023 February 2023 May 2023 August 2023 November 2023 March 2023 June 2023 September 2023 December 2023

Certification & Approval Having worked out a promising-looking layout, initial three-view and performance and weight specifications, now is the stage where the hard work begins of transforming concepts to working drawings. Essential decisions have to be made about types of material to be used, the structural arrangement, exact choice of powerplant and so on. You’ll probably need to make a cockpit mock-up to check the ergonomics and control system arrangements, and maybe build a flying radio controlled model of the design to give faith in the handling characteristics. With the basic geometry laid out, stress calculations and assembly drawings come next, then drawings of individual piece parts. Keep an up-to-date tally on weights. As the drawings get more detailed you must re-evaluate whether you are going to meet your original targets in terms of weight, strength and aerodynamic cleanliness, whether you need to re-visit your original assumptions or re-design from scratch. Is there a way that the part or assembly can be made more easily, more cheaply, lighter, stronger, more fatigue or corrosion resistant ? Fewer parts and fewer joints generally means fewer problems and less weight. Can you use off the shelf parts rather than having to make them specially ? Are there other aeroplanes around that have already solved a particular problem in a clever way ? Will the aircraft be easy to inspect in service, easy to repair if it gets damaged ? Can it be broken down for transportation ? If the handling isn’t quite right when the prototype is test flown, does the design make provision for ‘tweaks’ to put it right ? Does the design include reserves of strength to cope with weight growth in service and more powerful engines, or is everything pared down to the minimum ? Downloadable Spreadsheets Technical Leaflets Design Tutorials