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Popular Flying Magazine 1957 Click on the links below to open each issue of Light Aviation Magazine from 1957 Jan 1955 PFA Bulletin March 1957 May/June 1957 July/August 1957 October/November 1957 December 1957 April 1957 September 1957

Modifying & Repairing Aircraft One of the main features of the LAA system is that modifications and repairs can be approved with significantly reduced costs compared with aircraft on Certificates of Airworthiness, where applicants would need to deal with the CAA or EASA. Since the engineering team are all ‘little aircraft’ experts, it is usually a straight-forward job to approve many types of change. Of course, with many of our members being so creative, sometimes the job takes a little more time and thought to approve! View current mod/repair application queue Modifcation Type Description Further Details Application Form Application Fee Category Changes Applications to change an aircraft’s category from a microlight to a ‘Group A’ aircraft (and vice versa) are allocated a modification number to record the change. If an engine or propeller change is required at the same time, then an application must be made as noted above. N/A LAA/ MOD 10 £200 Engine & Propeller Changes These are treated as Prototype or Repeat modifications, unless they appear on the PTL list for the type. Technical Leaflet TL 3.02 LAA/MOD 4 and LAA/MOD 5 * See below Avionics Installations These are not considered modifications, but in order to fulfil their legal obligations, owners are required to keep LAA up-to-date should radio details alter. A special system exists for the approval of radio changes that is separate from other modifications. Technical Leaflet TL 3.03 LAA/MOD 7 No charge for radio/transponder installations, but a £30 fee is chargeable for certified ADS-B Out applications STCs Where a change has previously been approved by means of a Supplemental Type Certificate (STC), LAA Engineering then only needs to investigate any installation/compatibility issues rather than the change itself. N/A LAA/MOD 13 £50 The Trivial Change Sometimes a change is so trivial that no application is required and there is no need to inform the Engineering department. Technical Leaflet TL 3.10 N/A N/A Manufacturers' Modifications Kit manufacturers and plans suppliers often have long lists of optional modifications that can be fitted and during the lifetime of a type product improvements are introduced. Generally, LAA-accepted optional items are listed on the TADS for the type. N/A N/A N/A The Standard Modification This is a modification that is very well defined and is applicable to a particular aircraft or engine type or types. Members may nominate new Standard Modifications using form LAA/MOD 9; however, LAA Engineering may choose to convert popular Repeat modifications into Standard Modifications. Technical Leaflet TL 3.06 LAA/MOD 1 Variable, see individual mods for details The Repeat Modification A modification that has already been approved on one aircraft as a Prototype modification. Note that a Repeat modification must identically replicate the original Prototype modification including fasteners and positions of parts and should generally be on the same aircraft type as the original. Technical Leaflet TL 3.07 and TL 3.17 LAA/MOD 11 * See below The Prototype ("normal") Modification This is a normal modification application made in the usual way and is applicable only to the aircraft for which the application is made. Technical Leaflet TL 3.01 LAA/MOD 2 and LAA/MOD3 * See below * All prototype modifications (including engine and propeller changes) attract a minimum fee of £100 which covers up to two hours' work; all repeat modifications (including engine and propeller changes) attract a minimum fee of £50 which covers up to one hour's work. Thereafter, work is charged at £55/hour in either case. See the relevant Technical Leaflet for the type of modification for further details. ​ To access the Technical Leaflets, MOD forms and Standard Modifications described above, click one of the buttons below: ​ ​ ​ ​ ​ Technical Leaflets on Modifications & Repairs LAA MOD Forms Standard Modifications

< Back Nick Stone appointed as the LAA's Head of Airworthiness 24 Oct 2023 The LAA is pleased to announce the appointment of Nick Stone as the LAA’s Head of Airworthiness. Nick brings a vast wealth of aircraft knowledge as well as a real world understanding of the need for good process and procedure. Having started his career in the Royal Air Force, Nick went on to work in the aerospace industry working in the UK with British Aerospace and Slingsby Aviation at various sites and projects, as an inspector, methods engineer and quality engineer. Nick then moved to the United States at Eastern Airlines in Miami Florida, Learjet in Wichita Kansas and Chihuahua Mexico as inspection/Quality representative of Shorts Aerospace (Bombardier Aerospace). Following a downturn in the British Aerospace industry he then took an opportunity to move into the nuclear industry working in both reprocessing and power generation. Throughout Nick's working life the one constant has been a passion for aviation. Having started as a volunteer at a local aircraft museum at 14, Nick started flying at the age of 16 in gliders and has a private pilot’s licence PPL(A). Prior to becoming an LAA inspector Nick spent many years building, rebuilding, and restoring vintage aircraft, the more unusual the better. “As an LAA inspector I understand the need to move forward and change and adapt to an ever changing but exciting world. Having run my own aircraft restoration company for the last seven years I always felt it is important to understand your customers”. LAA CEO Simon Tilling said, “Nick is a great addition to the LAA staff. I and the rest of the team are looking forward to working with him in the near future” Next Previous

< Back Mandatory Technical Directive issued for Sting S4 29 Sept 2023 LAA has been working with TL StingUK to correct an issue found during the flight testing of the factory-built version of the aircraft. It was found that the type would consistently drop the starboard wing more than the permitted maximum during a wings-level stall. LAA Mandatory Technical Directive MTD-01-2023 has been issued that requires the installation of a stall strip on the starboard wing and two stall strips on the port wing, along with restricting the elevator travel, in accodance with TL StingUK service bulletins 0002 and 0003, before further flight. Next Previous

Become an Inspector Are you interested in becoming an LAA Inspector? To understand the application process, read the 'LAA Inspector Application Notes' and 'Flow Chart' below. Please use the form below to apply and include as much detail as possible in your application. Complete applications can be emailed to the Chief Inspector, Lucy Wootton at [email protected] . INSPECTOR APPLICATION NOTES INSPECTOR APPLICATION FLOW CHART INSPECTOR APPLICATION FORM INSPECTOR APPROVAL INFORMATION

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

< Back LAA at AeroExpo 9 Jun 2023 We're at AeroExpo UK at Sywell. Come and meet the LAA and friends in the LAA tent tomorrow. Alongside the LAA, we have Transair Flight Equipment, Cambrai Covers, AIR Courtage Assurances, PilotAware, Sling Aircraft, Bristell Aircraft UK, SEHT and Smart Skies! #aeroexpo #meetthelaa Next Previous

< Back LAA members - Make your views known! 25 Jan 2024 Basingstoke & Deane Borough Council's consultation on their draft Local Plan – which includes a proposed new Popham Garden Village on Popham Airfield, has opened. It runs until 4 March 2024. This proposal is not in line with either Government policy or their stated aim to make the UK the best place in the world for General Aviation. The Government's policy can be found in their publication ' Flightpath to the Future " and makes repeated references to the vital importance of airfields, forming a critical part of national infrastructure. You can have your say and tell Basingstoke & Deane Council that their proposal is contrary to Government policy and insist the proposal is removed from the current ‘draft’ strategic plan. Visit the Local Plan Update ' Have Your Say ' section of their webiste. Next Previous

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