Helicopters, aeroplanes, spacecraft and other powered aircraft. Helicopters and aeroplanes. Helicopters. Parts for aircraft, spacecraft and helicopters. Parts for helicopters. Combat helicopters. Anti submarine warfare helicopters. Support helicopters. Military transport helicopters. Search and rescue helicopters. UK MOD has a requirement to regenerate 2 Gazelle Helicopters from long term storage. The aircraft will require major maintenance carried out in accordance with UK MOD publications (The MOD will supply the publications). Aircraft will require specific modifications embodiment to be carried out during the maintenance (The MOD will supply the modification kit). The 2 aircraft are to be delivered concurrently. The Contractor must be ‘MAOS’ accredited for Gazelle Helicopters. The work recording must be carried out in accordance with current MOD requirements (GOLDesp).