Attention: Phantom New Rules

RACING RULES

• PHANTOM RACING NEW RULES

Adopted from Peterborough Model Flying Club - 70th Anniversary.

(a) The model should be built to the outline shown on the original Keil Kraft Phantom plans. Any original mark is acceptable.

(b) Commercially available 1.5 cm3 plain or ball bearing.

(c) Maximum fuel tank capacity 10 cm3 including feed pipe and vents.

(d) Minimum wheel diameter 2 inches.

(e) The use of a spinner or safety spinner nut is compulsory. The minimum spinner backplate/nose ring diameter shall be 1.75 inches.

(f) Minimum dihedral under each wing tip 0.75 inches.

(g) The model must be fitted with a bubble canopy or windshield whose dimensions are not less than those shown on the original plans.

(h) The cowling around the engine/tank compartment, if fitted, may be aluminium etc. but materials for all other major components should generally be as shown on the original plans.

(i) Any commercially available propeller may be used except that is shall not be of the glass, carbon, Kevlar or other resin bonded type. One blade may be modified for balancing purposes only.

(j) The CD has the right to check any model at any time and to disqualify it at his discretion should he find it to be in serious breach of any of the above rules.

(k) 42 ft line length measured between the model centreline and the finger grips on the handle. Line thickness. 0.012" (0.3mm)

(l) Model and lines are to subject to a 20G minimum pull test prior to racing.

(m) 100 lap heats, 200 lap final.
             2 pitstops, 5 pitstops.

(n) Normal BMFA team race procedures as contained in this rule book will apply with specific reference, where applicable, to the Vintage Team racing rules.

• Fox Racing Rules

AMA Unified Racing Rules to apply along with AMA Sfety Provisions with the following exceptions.

Airplane:The wing must have minimum area of 300 sq. in and a minimum thickness of 1 inch when measured at any point along the span, with the exception of the last 2 inches before each tip. Additionally the airplane must have a minimum of 22 inches when measured from the thrust washer to the hinge line of the elevator. In board cheek cowls are permitted. Airplane must ROG, one wheel configurations permitted. Airplanes are to be of the profile type.

Engine:Box stock Stunt Fox 35. Only permitted alterations are; Needle Valve/Spray Bar, different bolts may be used. No metal may be removed or added. No hemi heads, button heads stuffer plates etc. Engines must be stock. The top three finishers in the event shall have their engines undergo a mandatory technical inspection. Backplates and cylinder heads shall be removed, and the engine shall be visually inspected for any modifications not allowed by current rules. Any entrant found to be in violation shall be disqualified. Any decision made by the event director shall be final.

Props:Propellers are to be either 9-6 or 9-7 wood or plastic, commercially available. The only rework permitted is balancing.

Lines:60 ft length +/- 6’’ as measured. .015 minimum diameter braided only, no solids. Pull test of 35#.

Fuel System:2oz tank suggested. No pressure, vents may be directed forward. Fuel must enter tank thru 1/8 diameter tubing.

Races:Races are to be 100 laps 2 pitstops required. Races should be flown 3 up. Event director may run heat races if desired. Heat races shall be 100 lap 2 pits with the top times advancing to the finals. With the final being 100 laps with 2 pits.

Prohibited equipment:Hot fingers, Shutoffs, Fastfills.

Other Notes:The event director may disqualify any entrant who is not in keeping with the spirit or intent of this racing event.

• QUICKIE RAT

OBJECTIVE:To provide a racing event that may easily be flown “three up” and which employs relatively inexpensive and easily constructed control line racing models. To encourage and promote the success “of the average” control line flyer in control line racing competition.

2. GENERAL:

2.1 Applicability: All rules from the Unified Control Line Racing Rules apply to this event except as modified, appended or specified here.

2.2 Maintenance: It is imperative that the performance level of this event be maintained such that it is always possible to safely race “three up” on stranded lines. If at any time it is felt that the event must be changed from the three up format for safety concerns or that solid lines are required, then the event rules should be immediately modified so as to reduce the aircraft performance level. It is recommended that this event be reviewed by the National Control Line Racing Association on a yearly basis. As a guideline, if nominal speeds surpass 105 MPH (17.14 sec/7 laps), then the allowable venturi (part 4.7.1) should be reduced by 0.010’’. The sport of three up control line racing should be preserved at all costs if individual equipment is temporarily obsolete.

3. MODEL SPECIFICATIONS

3.1 Models will be of profile construction only. Refer to profile definition in Control Line General section. The use of cast pan or metal engine crutch is not allowed.

3.2 The control system, consisting of leadouts, bellcrank, pushrod and control horn will be totally exposed and external to normal airplane contours. The leadout wires will not be recessed into the win, the pushrod will not be mounted inside the fuselage, nor will the bellcrank be allowed to be mounted inside the fuselage. The leadout tip guides may be inset into the wing but should not be more than ½ inch in length.

3.3 The line connections to the model will be external to the aircraft wing tip.

3.4 The fuel tank shall be totally outboard of the centreline of the crankshaft of the engine.

3.5 Pressure fuel systems are not allowed, with the exception that the fuel tank vent tubes may be directed into the airstream.

4. ENGINE SPECIFICATIONS

4.1 Maximum total displacement shall be 0.4028 inches (6.6 cc). Engines must be production units assembled from factory available production parts. Engines and parts must have been produced in quantities greater than 500 and all must be or have been available through normal retail outlets in the USA. Parts substitution shall be limited to catalog listed parts produced in quantities greater that 500 units for the engine being altered and available commercially to anyone from the manufacturer of the engine. Engines may only be modified by removing parts or material from parts except as noted in the following paragraphs. No material or part may be added except as noted in the following paragraphs under this section.

4.2 The “engine“ is defined as the complete unit, ready to run, needing only prop, fuel and starting voltage except that the glow plug, venturi and/or restrictor, spraybar and needle valve, gaskets, bolts, drive washer, front washer, prop nut, shims, piston ring(s) (if used) and ball bearings (if used) need not be considered part of the production unit. These parts are not subject to the rules regarding quantity or source. In addition, chrome plating of a cylinder is allowed.

4.3 The glow plug must have a thread dimension of 1 / 4 – 32.

4.4 The engine must be of the front intake configuration. All air for the combustion process must come through the crankshaft. Altering nominal sub-- -port induction, timed holes in the case and sleeve or other techniques to circumvent the requirement that all air come through the specified venture opening are not allowed.

4.5 Only single by-pass port engines are allowed the engine as purchased and as used shall be of the single by-pass configuration. No schneurle or PDP porting is allowed.

4.6 No ABC or AAC piston/sleeve configurations are allowed.

4.7 No variable area carburettors shall be allowed. Each engine shall be equipped with a venture and spraybar meeting the following restrictions.

4.7.1 The venturi shall have an inside circular bore of not more than .315’’. The venture will maintain this diameter for at least 0.25’’ at the throat of the venturi where the spraybar will be located at the midpoint of the area.

4.7.2 The spraybar assembly will be located precisely through the centreline of the venture bore and shall have a constant circular cross section of diameter not less than 0.155’’ for the portion in the throat of the venturi.

4.8 No tuned pipes, mufflers or exhaust extensions are allowed.

4.9 The complete engine/venturi/spraybar system shall weigh less than 10.5 ounces.

5. FUEL SPECIFICATIONS

5.1 The fuel for this event shall be supplied by the contest organizers and shall contain not more than 10% Nitromethane not less than 20% lubricant and the rest shall be methanol.

6. RACES

6.1 Each contestant shall be allowed at least two qualifying heat races.

6.2 Qualifying heat races shall be 70 lap races with one required pit stop. It is suggested that only the best time of the two qualifying attempts be used as the basis for advancement to the finals.

6.3 Finals race shall be 140 lap races with three mandatory pit refuelling stops.

6.4 All races shall be run with no less two or more than three flyers, races should be flown three up.

7. LINES

7.1 Shall be minimum of two .018 diameter multi-strand only, and length shall be 60 feet plus or minus 6’’ as measured from center line of handle to center line of fuselage.

7.2 Pull test 35 Lbs.

8. FLYING REGULATIONS

8.1 All flying shall be done between 6 and 20 feet altitude.

9. SPECIALTY ITEMS

9.1 Shutoffs: allowed; fuel shutoffs are recommended for safety.

9.2 Hot gloves: allowed

9.3 Prop: open

• GOODYEAR

BMFA rules for britshi goodyear. Model 1/8 scale of airacer. Profile fuselage. Engine and tank not cowling. One or two wheel. No fuel pressure systems. No restrictions on tank size.

Engine any diesel / steel engine 2.5cc, like PAW, Enya , ETA, Oliver, Taipan, Webra, KMD / KMA.

Lines 15.92m lenght 0,30mm diameter.

Fuel No restrictions.

Races 100 laps heats. 3 pits stops .

Finals 200 laps. 5 pits stops.

• MINIGOODYEAR

Model 1/12 scale of a racing airplane. No landing gear because they fly on grass. No limit on tank size. All parts of the controls external.

Engine 1.5cc. PB engine.

Prop comercial (nylon or glassnylon) .

Fuel no restrictions.

Lines13.5 m lenght 0.30mm diameter.

Races 100 laps heats. 2 pit stops.

Final 200 laps. 5 pit stops.

• VINTAGE 1/2 A TEAM RACING

RULES 26.06.97

Models to be of published design or commercially kits which were available prior to 31^st December 1960

A selection of models and motors are listed in appendix I & II

Race conduct will be to current vintage team race interpretation

Heats to be 100 laps = 5 miles

Final 200 laps = 10 miles

Shut offs not compulsory

Refuelling by squash bottle only

Only APC or Graupner propellers may be used. No re-working allowed other than clipping dia.

Max engine capacity 1.5 cc

Min projected wing area 55 sq ins

Max fuel capacity 10 cc

Min fuselage width (at cockpit) 1.25 ins

Min fuselage depth (at cockpit) 2.50 ins

Min wheel dia 1.5 ins

Line length 42 ft- 0 ins

Min line thickness 0.012 ins

Appendix I

------------ Eligible motors

Only motors listed below

E.D Fury & Super Fury / Hawk / Cadet

AM 10/15

JB Atom

Oliver Tiger Cub (360 Deg)

CS Tiger Cub (replica)

Frog 150/150R Viper

Elfin 149 PB & BR

Albon Javelin & Sabre

OK Cub diesel

Burford Sabre 1.5

Taifun Record & Hurrikan

BWM 150

Webra Record

Maragret Meteore

Le Simonne HR15

Byra 1.5

MVVS 1.5

PAW 149 PB (non schnnerle)

AE 15

ME Snipe

DC Sabre

Cipolla 1.5

Russian MK 17

Appendix II

------------ Eligible Models

Models may be converted to “drop in” layout if desired as long as the centre line of the motor the position of the wing and tail do not alter in side and plan view.

Cupid

The Weaver Half Pint

The Nurk Scorpion

Little Warrior Hawker Tempest (scene)

Mercury 1/2 A Team Racer Cream Puff

Frog Hornet

Veron Pinto

Gnatt

KK Ranger

Diddy Dice

Plus any approved Vintage A class model fitted with 1.5 cc motor 10 cc tank and 42 ft lines

Any approved Vintage B class model scaled down to 1/2A criteria. Percentage reduction to be advised for scrutinising purposes

• VINTAGE TEAM RACING, CLASSES “A” AND “B”

BMFA Control Line Rule – Book 2

4.3.9.1 Object

To assist organizers and participants in Vintage Team Racing events by providing a clearly defined code of practice which typically retains the original character of models and events prior to 1 958.

4.3.9.2 Eligibility of Models

A Vintage Team Racing Model must be built to a constructionally detailed and dimensioned plan or three-view published or kitted prior to 1^st January 1958. January 1958 magazines are accepted as published in 1957. The model must comply with the accepted team racing rules at the time of publication. Exceptions to this rule may be permitted as follows:

Where only photographic evidence of a design was published before I at January 1958 but the original designer(s) can confirm accurate of details of model by signing the plan.

3. Model Details

The following section gives typical (but not exclusive) guidelines for what may or may not be allowed:

(a)Entrants are encouraged to adhere as closely as possible to the

original design to capture the flavour and authenticity of the period. A +/-

5% dimensional building tolerance is allowed. Any modifications which, in

the opinion of the Contest Director, significantly change the appearance or

performance of the model as originally designed will not be allowed.

(b)Structures may be strengthened for racing to current rules using

materials and methods consistent with the period, i.e. solid balsa in place

of sheeting or planking, silk or nylon in place of tissue on built up flying

surfaces or stringered fuselages etc.

Models drawn or kitted, having wings with open structure (i.e. ribs covered with tissue, silk or sheet balsa), may have the wings made from sheet wood although the original wing thickness be maintained.

(c) Models with split fuselage construction (e.g. Footprint) may be made

in one piece, with a contemporary helmet cowl if the engine was originally

attached to the top half of the fuselage or a drop in layout if it was originally

fixed to the bottom half. Models designed with a built-in engine installation

may be modified to a drop in layout.

(d) Leadouts positions and spacing must be as per plan (no grouping)

and line connections must be external to the model unless shown as

internal on the original plan.

(e)Engine access must be as per plan with no metal pans or drop in

layouts except as noted in (c) above. Radial mounts can be replaced by

engine bearers. The cowl/engine position can be adjusted to suit different

engine dimensions and weights.

(f)Wheels must not be behind a vertical line through the plan position,

with track likewise conforming to the plan dimensions. A spreader bar may

be fitted if desired.

(g)Elevators must be as per plan (no single elevator instead of a

double).

(h)The use of glass, carbon, kevlar or other resin bonded fibre is not allowed except for localized repairs.

(i)Glowplug activation systems shall be limited to commercial clips, two-

pin plugs or jackplugs. Any other system must be shown on the plan or

have acceptable proof of use in the period.

(j)Spinners must be retained if shown on the original plan.Models may be flown with the spinners removed but, if so, a domed safety nut must be fitted.

(k)A shut-off should preferably be fitted but only for emergency use and not for the purpose of a normal pit stop.Each non-emergency use during a race will incur a 30 second penalty.

(l)A list of eligible models is given in appendix (l).Entrants are encouraged to find additional models with acceptable proof of eligibilityso that the list ran be extended Please contact the Control Line Technical Committee or the Vintage Team Race Special Interest Group via the BMFKs Leicester office.

(m) Circular bellcranks are permitted, however the original readout exit positions must be maintained.

(n) Class A models built to early FAI rules (i.e. Phfft) which do not comply with the 3’’ x 1,5’ at the pilot’s head or cockpit cover, will be measured at the appropriate section.

(o) Models may be converted to “drop in” layout if desired as long as the thrust line of the engine and the positions of the wing and tailplane are not significantly altered in plan or side elevation.

4.3.9.4Eligibility of Engines.

(a) A Vintage engine is one whose design and mark number was

advertised for sale prior to 1^st January 1958, although the engine need not

necessarily have been manufactured by that date.

(b) The engine used in a model in the Vintage Team Racing shall

either conform to the above or, if of later design and manufacture, be a plain

bearing, non-schnuerle ported engine, commercially advertised at some

time.

Note: Schnuerle porting is defined as two or more directionally shaped ports, symmetrical about and adjacent to the exhaust; normally in conjunction with, but not limited to, a flat topped piston.

(c) The use of ETA 6Cs will be permitted as they are direct lineal

descendants of earlier, scarce, engines and offer no marked increase in

performance.

(d) Any engine modifications, replacement parts or hybrid engines must

use materials and technology clearly in use for model aircraft engines used

in Class A and B team racing prior to 1^st January, 1958; e.g. a loop scavenged

engine will have a baffle piston. Although available at the time, peripheral

jet carburettors will be allowed.

Note – A hybrid engine must have the crankcase of an engine as defined in (a), (b) and (c) above.

(e) A list of approved engines is given in the appendix (2).

4.3.9.5Propellers

Propellers shall not be of the glass, carbon, kevlar or other resin bonded types.

4.3.9.6Tanks.

(a) Tank capacity, including fuel lines shall be 15 CM3 for Class A and 30 CM3 for Class B.

(b) There shall be no use of such modern features as multi-function valves and pressure refuelling.

(c)Refuelling shall be by squash bottle only.

4.3.9.7 Lines

(a) The control lines shall be measured from the centre of the handle

grip to the centre of the model. They shall conform to current BMFA safety

regulations for Team Racing and each ready to fly system of

handle/lines/model shall be subject to a pull test of 20 times the

model weight for both Class A and Class B.

(b) For Class A, the line length shall be 15.06 Metres (49’5’’) with a minimum line diameter, for both solid and multi-strand lines, of 0.3 mm (0.012’’).

For Class B, the line length shall be 17.06 metres (56’0”) with a

minimum line diameter for solid lines of 0.345 mm (0.0136”) and for multi-

-strand lines of 0.38 mm (0.015”).

4.3.9.8RaceDistances

Heats: Class A - 90 laps Class B - 75 laps

Finals: Class A - 180 laps Class B - 150 laps

4.3.9.9The Circle

(a) The radius of the pilot’s circle shall be 3 metres for both classes. The radius of the flight circle shall be 17.7 metres (58’1’’) for Class A and 20.56 metres (67’6”) for Class B.

(b) The circle shall be divided into 6 equal segments for the locations of the starting positions, choice of which shall be by means of a draw.

10. Race Conduct

The conduct of the race shall be in accordance with the rules laid down for

the conduct of Team Racing events in the current edition of the BMFA Contest Rules Book. In the interests of safety, the Contest Director may, at his discretion, group models/teams according to their performance/competence.

10. Special Provisions

In view of the probable dominance of Class A events by one type of Vintage engine, provision shall be made for an award to be given to the fastest team using a Vintage engine, as defined in 4.3.9.4 (a), other than an Oliver Tiger.

4.3.9.12Proof of Authenticity

Scrutineering will be carried out at the discretion of the Contest Director and may include model/engine, tank capacity and lines. The onus of proof lies with the entrant for any model/engine/feature not listed and he must have acceptable provenance on the day of the contest.

Appendix (1)

VINTAGE TEAM RACE ELIGIBLE MODELS

CLASS A DESIGNS

CLASS B DESIGNS

Appendix (2)

VINTAGE TEAM RACE APPROVED ENGINES

CLASS A

CLASS B

• DIESEL COMBAT

BMFA rules. All vintage or Oliver  Tiger powered models can enter. Prizes  for best vintage or Oliver.

F2C NACIONAL RULES

• General racing conduct-current team race interpretation.