Whirly, No, Rule 5(i) only applies in a licenced or government aerodrome. The more general 5.3 (a)2 applies outside congested areas. ie exempt the 500 ft rule. The only 'advice' I know, is on the BHAB site which says "a flat area of ground about the size of two tennis courts should be adequate to take the smaller types" and to all intents and purposes you should keep at least a blade length from buildings.
edit to agree with Cpt Jim below
dead horse well flogged.
Last edited by Gaseous; 31st Jul 2006 at 20:29.