Over 25kg Scheme

If you plan to build and fly a model aircraft in the UK of any type which weighs over 25kg MTOM (full of fuel) then it is mandatory (a requirement of the Civil Aviation Authority) that the aircraft is built, inspected and flight proven using the over 25kg scheme operated by the Large Model Association on behalf of the CAA.

The summary new build process is-

  1. Operator registers the aircraft project with the LMA
  2. LMA inspector inspects the aircraft through the design & build process
  3. LMA issues a Permit to Test Fly
  4. Pilot(s) carry out test flights in the presence of an LMA Flight Test Witness
  5. LMA issues the aircraft operator with the application supporting documents
  6. Operator applies to the CAA for a full authorisation

Authorisations are specific to the operator and pilot(s), are issued for one year and need to be renewed annually.

The summary renewal process is-

  1. Operator makes annual declaration to the LMA
  2. LMA issues the aircraft operator with the renewal application supporting documents
  3. Operator applies to the CAA for a full authorisation

The summary ownership change process is-

  1. Operator informs the LMA of the ownership change
  2. LMA inspector inspects any modifications to the aircraft
  3. LMA issues a Permit to Test Fly
  4. Pilot(s) carry out test flights in the presence of an LMA Flight Test Witness
  5. LMA issues the aircraft operator with the application supporting documents
  6. Operator applies to the CAA for a full authorisation

The Following Locations are approved for flight testing of over 25kg model aircraft in accordance with section 4.8 (8) of Model Aircraft Article 16 Authorisation UAS13534

NLMFC Baldock
RNAS Culdrose
RNAS Merryfield
Weston Zoyland
Salisbury MFC
Langar Model Aircraft Club
Binham Model Flying Site
Cheddar Model Flying Site
Deenethorpe
Abingdon
RAF Barkston Heath
Peonix MFC
Elvington Airfield
LMA North West Model Flying Site
LMA Lighthorne
Woodbridge
RAF Shawbury
NMAS Longhorsley
Winterton MFC

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