Single Seat Deregulated Microlights (SSDR)

Single Seat Deregulated Microlights (SSDR)

On 28 May 2014 the CAA issued Information Notice IN 2014/091 advising of the deregulation of single seat microlight aeroplanes for airworthiness purposes. It explains how aircraft owners may make use of the exemption.

As a result of requests for clarification, the CAA has produced some relevant Q&As below,

You are encouraged to check this page for the latest Q&As on this subject.

  1. Which aeroplanes may make use of the exemption?
  2. How can I determine the stall speed of an aircraft in terms of calibrated airspeed?
  3. Can a lightweight aircraft that is not presently a microlight be classified as a Single Seat Deregulated Microlight Aeroplane (SSDR) if it meets the exemption criteria?
  4. Does the SSDR exemption mean that I can design and build a single seat microlight aeroplane without prior approval by the CAA?
  5. Do I still need to register and insure my microlight?
  6. I own a single seat microlight which meets the new SSDR requirements but has not held a Permit to Fly for many years, what do I need to do to fly it again?
  7. Can I modify my aircraft without obtaining approval from the CAA, BMAA or LAA?
  8. Who determines if the aircraft is eligible to fly under the exemption?
  9. Do I have to observe the same operating limitations as previously specified on the Permit to Fly or Type Approval Data Sheet (TADS) etc?
  10. Do I still have to comply with mandatory airworthiness requirements, such as Mandatory Permit Directives?
  11. Can I modify a two seat machine to become a single seat microlight aeroplane?
  12. Does my single seat microlight aeroplane still have to be inspected annually by a BMAA or LAA inspector?
  13. Does the SSDR exemption include self-launching motorgliders?
  14. Does the SSDR exemption apply to gliders and rotorcraft?
  15. Do I still need a valid pilot’s licence to fly a deregulated microlight?
  16. Can I use my deregulated single seat microlight for commercial hire or remunerated training purposes?
  17. I want to continue to fly using my valid Permit to Fly during the period prior to the ANO change, is this possible?
  18. Can I still fly overseas without prior permission in countries where the long-standing European Civil Aviation Conference (ECAC) arrangements apply?
  19. Do I still need to keep my aeroplane’s Noise Certificate?
  20. I note that I can convert a two-seat microlight to single seat in order to qualify as an SSDR, but can I also declare a reduced MTWA in order to take advantage of the SSDR category?
  21. I have a lightweight landplane that also meets the definition of a single seat microlight aeroplane. Can I make use of the SSDR exemption?
  22. I am building a new design of aircraft as an SSDR. How can I make a declaration that it is an SSDR prior to having determined the stall speed is 35kts CAS or less?