Altitude Exemption for larger models…. Post author:Mark Youatt Post published: October 9, 2024 Post category:General We now have the necessary exemptions in place to allow models of 7.5kg+ to exceed an altitude of 400′, running to 31/12/2024. You Might Also Like WHMFC Indoors… December 12, 2025 ‘Old’ content added to gallery… March 15, 2025 Competition Day June 16, 2021