BRITISH MODEL FLYING ASSOCIATION CONTEST RULES SECTION 4 CONTROL LINE SPEED AEROBATICS TEAM RACING COMBAT CARRIER To be read in conjunction with the General Rules, Sections 1 and 2, which are available free of charge from the BMFA. Effective January 2020 Supersedes January 2019 Issue Price £3.00 PAGE DELIBERATELY LEFT BLANK SECTION 4 - CONTROL LINE CONTENTS NOTE: All FAI class rules are excluded and you should refer to the FAI Sporting Code for those rules. 4.1 General Rules ....................................................................................... 4 4.2 Team Selection Rules .......................................................................... 6 4.3 Domestic Team Rules for F2D Combat ............................................ 10 Safety Strap Notice .............................................................................. 11 4.4 Speed 4.4.1 BMFA Variations on F2A and F2G ....................................................... 11 4.4.2 BMFA Control Line Speed Rules .......................................................... 11 4.4.3 Sport Jet Speed ................................................................................... 17 4.4.4 The F2A and Open Speed Leagues ..................................................... 18 4.4.5 Vintage Speed ..................................................................................... 19 4.4.6 Vintage Proto Speed ............................................................................ 22 4.4.7 Weatherman Speed ............................................................................. 22 4.5 Aerobatics 4.5.1 BMFA variations on F2B and F2B Judges Guide ................................. 25 4.5.2 C/L Technical Committee Aerobatics Judges Training Programme ............................................................................ 26 4.5.3 Class 2 Aerobatics ............................................................................... 28 4.5.4 Junior Class 2 Aerobatics..................................................................... 29 4.5.5 Vintage Stunt ....................................................................................... 29 4.5.6 Classic Aerobatics................................................................................ 37 4.6 Team Race 4.6.1 BMFA Variations on F2C...................................................................... 38 4.6.2 General Team Race Rules ................................................................... 38 4.6.3 Semi Scale Class Rules ....................................................................... 44 4.6.3.1 1/2A, B and Barton B ........................................................................... 44 4.6.3.2 1/2A Team Race .................................................................................. 44 4.6.3.3 B Team Race ....................................................................................... 45 4.6.3.4 Barton B Team Race ............................................................................ 45 4.6.3.5 Barton Classic 15 ................................................................................. 47 4.6.4.1 Profile Class Rules ............................................................................... 49 4.6.4.2 Open Goodyear ................................................................................... 50 4.6.4.3 British Goodyear .................................................................................. 51 4.6.4.4 Mini Goodyear ...................................................................................... 52 4.6.4.5 F2CN ................................................................................................... 53 cont/… BMFA Control Line Rules 1 Effective January 2020 …/cont 4.7 Vintage Team Race 4.7.1 Vintage Team Race ............................................................................. 54 4.7.2 Vintage 1/2A Team Race ..................................................................... 57 4.7.3 Vintage Class A Team Race ................................................................ 58 4.7.4 Vintage Class B Team Race ................................................................ 60 4.8 Combat 4.8.1 BMFA Variations on F2D...................................................................... 64 4.8.2 1/2A Combat ........................................................................................ 64 4.8.3 1/2A Diesel Combat ............................................................................. 69 4.8.4 Vintage Combat ................................................................................... 70 4.8.5 Oliver Tiger Combat ............................................................................. 82 4.8.6 BMFA Variations on F2E ...................................................................... 83 4.9 Carrier Deck 4.9.2 Class 1 Carrier Deck ............................................................................ 84 4.9.2 Basic Carrier Deck .............................................................................. 86 Notes Changes to the rules, other than consequential sub-paragraph re-numbering, are denoted by a side-bar as shown on the right. Gender Words of masculine gender should be taken as including all genders. Synopsis of 2020 changes. Rationalisation of terminology throughout the document. Speed 4.4.2.21 c) Clarification of the method of calculating Speed percentages for results. Nostalgic Speed 4.4.5 Added Nostalgic Speed title. 4.4.5.1 Relocation of national record information. 4.4.5.2 Vintage Speed new numbering. 4.4.5.2.2 (g) Dimensions of the spinner in Vintage Speed. 4.4.5.2.14 Clarification of the method of calculating Vintage Speed percentages for results. 4.4.5.3 Proto Speed new numbering. 4.4.5.4 Weatherman Speed new numbering. 4.4.5.4.2 Dimensions of the spinner in Weatherman Speed. 4.4.5.4.9 In the table, Weatherman classes II & IV have increased pull tests and in class IV the line diameter is increased. 4.4.5.4.13 Clarification of the method of calculating Weatherman Speed percentages for results. cont/… BMFA Control Line Rules 2 Effective January 2020 …/Synopsis (Vintage Stunt) cont Vintage Stunt 4.5.5.2 (a) Change of date for aircraft design. 4.5.5.3 (c) Added clause on scoring. 4.5.5.3 (i) Deleted the rule & table regarding bonus points. 4.5.5.4 (f) New paragraph regarding bottom level of manoeuvres & moved the manoeuvre descriptions from paragraph (e) to (f). 4.5.5.4 (f) 3 Change of altitude. 4.5.5.6 (1-11) Interpretation of rule 4.5.5.4 (f) with the exception of manoeuvre 2. 4.5.5.7 New design score sheet. 4.5.5.3 (c) Clarified the final clause – Editor 4.5.5.4 (d) Added reference for the score sheet - Editor Classic Aerobatics. 4.5.6.1 Change of date for aircraft design. Barton B Team Race 4.6.3.4.4 (a) Line length change. 4.6.3.4.4 (b) Line specification change. 4.6.3.4.4 (c) Wrist strap included in the pull test. 4.6.3.4.6 (b) Propeller tip restriction change. 4.6.3.4.7 (a) Proprietary fuel name change. Team Race 4.6.2.5 (c) Line end manufacture drawing. 4.6.2.5 (d) The use of crimps is prohibited. Amended the sequence of the sub-paragraphs. Barton Classic 15 4.6.3.5.3 (a) Permitted engines change. 4.6.3.5.3 (c) Deleted as obsolete. 4.6.3.5.4 (a) Line specification change. Final para Added a Contest Director clause. Vintage Combat 4.8.4 The Vintage Combat rules has undergone a comprehensive re-write. Oliver Tiger Combat 4.8.5.1 Eligible model list clarification. 4.8.5.1 (b) Engine bearers addition. 4.8.5.1 (c) Eligible model list reference Vintage Eligible Model List at Annex A. 4.8.5.2 (a) Engine addition. BMFA Control Line Rules 3 Effective January 2020 4.1 CONTROL LINE GENERAL CONTEST RULES. 4.1.1 Safety Precautions (a) No control line model aircraft shall be flown in a contest unless arrangements are made to keep spectators at least 25 feet outside the flight path of the model aircraft unless the model aircraft are flown inside a safety cage. (b) No model aircraft or equipment shall be used in a contest if it is considered by the Contest Director to be unsafe or in a dangerous condition. (c) Any competitor releasing the controls whilst the model aircraft is in motion shall be under the penalty of disqualification from the contest. (d) In ALL CLASSES the use of either a spinner or a safety spinner nut is compulsory. (e) Most Classes have specific propeller safety rules and you should refer to the individual class sections for more information. (f) It is strongly recommended that safety wrist straps are worn by all pilots during flying including practice flying. These are compulsory under FAI rules for all F2 Classes. Note: There will be occasions when the wearing of a safety wrist strap during practice flying will be mandatory. (g) It is strongly recommended that all mechanics for Team Race, Vintage Team Race and Combat wear safety helmets during practice flying. Note: There will be occasions when the wearing of a safety helmet during practice flying will be mandatory. 4.1.2 With the exception of Open Speed control line model aircraft employing multi-line control, it shall not be permitted to link the two lines together in any way between the point of exit on the model aircraft and a point 300mm from the control handle. 4.1.3 The order of flying shall be decided by means of a draw when considered necessary by the organisers. 4.1.4 The jettisoning of any part of the model aircraft or attachments in flight is prohibited. In such an occurrence, the flight shall be deemed to be a non-scoring attempt. 4.1.5 Other than that exercised by the