Brabham BT43

Owing to a combination of factors (not the least of which was the closing down of the MRD side of the Brabham business) the BT43 did not make its debut until June 30, 1974, at round 10 of the 1974 Rothmans F5000 Championship at Monza driven by Martin Birrane.[7] Qualifying 15th in a field of 19 Birrane failed to finish retiring the car on lap 16. Birrane drove the car twice more: round 11 at Mallory Park on July 14, 1974, where he did not qualify;[8] and round 13 at Thruxton on August 18, 1974, qualifying 15th in a field of 19 but again failed to finish retiring the car.[9] This was to be Birrane's last appearance in the car as at the next round (round 14) at Brands Hatch on August 26, 1974, American Brett Lunger drove the car.[10] Qualifying an impressive 7th out of a field of 21 on the Brands Hatch short circuit Lunger unfortunately had an accident on lap 28 of the scheduled 60 laps and retired the car. The BT43 did not make a further appearance in 1974 until the last round (round 18) of the 1974 Championship again at Brands Hatch but this time on the Grand Prix circuit with Chris Craft in the cockpit.[11] Qualifying 13th out of a field of 25 Craft finally registered a result for the BT43 by finishing 7th completing 34 laps one lap down on the final round winner Australian Vern Schuppan driving a Chevron B24/28 for Team VDS. Double points for this final round helped to boost Craft's personal points tally in the series to 67 to finish equal ninth with compatriot Brian Redman.

Round 1 of the 1975 Rothmans F5000 Championship at Brands Hatch on March 15, 1975, on the Grand Prix circuit saw Brett Lunger return to driving the BT43.[12] Qualifying 15th in a field of 21 Lunger unfortunately had an accident on the warm-up lap and failed to start the race. The car did not appear again until round 4 at Silverstone on April 12, 1975, again in the hands of Lunger but this time sporting a new nose taken from a BT42.[13] (This is possibly one source of the BT43 being erroneously described in some publications as a modified Formula One car rather than a purpose built and unique F5000).[14] Qualifying 10th out of a field of 21, Lunger again failed to finish retiring on lap 12 of the scheduled 25 laps. The car made no further appearances in the 1975 Rothmans F5000 Championship.

Following its purchase by Chuck Jones in the USA the BT43's next appearance in 1975 was to be at the California Grand Prix which was round 9 of the 1975 US F5000 Championship at Riverside on October 26, 1975.[15] With Jones as the entrant the BT43 was to be driven by Dick Parsons. However the car failed to arrive having been crashed by Parsons in testing. Records of what happened to the car after this and who and where it was repaired are non-existent.

In late 1976 Australian racing driver Kevin Bartlett became aware of the car whilst in the US and tested it at Willow Springs.[14] Impressed by it, he began negotiations to acquire it with the intention of using it in the 1977 Rothmans International Series in Australia. However an agreement was unable to be reached in time for the 1977 series.

The repaired car's next appearance (sporting a new nose) was not in a race but in a motion picture as it was used in the filming of "The Betsy" during 1977.[16] The car was the open wheel race car of the racing driver character named Angelo Perino played by a youthful Tommy Lee Jones.

Following the conclusion of negotiations between Jones and Bartlett, the BT43 arrived in Australia in early January 1978 to participate in the 1978 Rothmans International Series. In a series dominated by Australian driver Warwick Brown driving a Team VDS Lola T332C with four wins from four starts; Bartlett in the BT43 could not manage a points finish, with sequential results of Retired,[17] 8th,[18][19] 15th,[20] and Retired.[20]

The first round of the 1978 Australian Drivers' Championship at Oran Park on July 30, 1978, proved to be more successful for Bartlett, with a second-place finish behind the McLaren M23-Leyland of John McCormack.[20] This proved to be the highest placing achieved by the BT43 in its career. A distant 5th-place finish in the 1978 Australian Grand Prix at Sandown on September 10, 1978,[21] which formed the second round of the 1978 Australian Drivers' Championship, kept Bartlett in, with a chance of taking the title. The third and final round of the series was run over two heats at Calder on October 15, 1978.[20] However, no points at the final round meant that Bartlett finished the series in a distant third place on 8 points behind the winner Graham McRae in his McRae GM3 on 20 points and second-placed John McCormack in his McLaren M23-Leyland on 12 points.

For the 1979 Rothmans International Series the BT43 was handed over to Colin Bond to drive with Bartlett reverting to his Lola T400. Bond had two points finishes with a 9th at the second round at Adelaide International Raceway on February 11, 1979[20] and a 4th at the fourth and final round at Oran Park on February 25, 1979.[22] With additional points being awarded for the final round compared with the first three rounds, Bond's points tally was boosted to 14 points which meant he finished the series in a relatively flattering sixth place. Bartlett by comparison finished a lowly fifteenth on 7 points.

With the first round of the 1979 Australian Drivers' Championship also being the 1979 Australian Grand Prix held at Wanneroo Park on March 11, 1979 – only a fortnight after the final round of the 1979 Rothmans International Series – neither Bartlett or Bond made the trip across the continent to contest the Grand Prix.

When the BT43 made its next appearance at the second round of the 1979 Australian Drivers' Championship at Oran Park on July 29, 1979, two factors were evident.[23] The first was dramatic modifications to the car primarily to cure the chronic lack of front end downforce exhibited since initial testing and in Bartlett's words its "unhealthy transition to spectacular oversteer"; while the second was the sponsorship of Bartlett's racing activities by Kerry Packer's Nine Television Network. Modifications included: a new nose (similar to that of the Lola T400); removal of the nose-mounted radiators and replacement with two new radiators mounted on the end of each upper side of the pyramidic monocque; and the change in livery. All of these changes were for nothing however as owing to an engine issue during practice the car failed to start the race. The third and final round of the 1979 Australian Drivers' Championship at Sandown Park on September 9, 1979, proved to be the BT43's final race.[20] One further modification to the car was the addition of a new airbox which again was similar to that fitted to a Lola. Bartlett had taken a deposit on the car and raced it for its new owner. Bartlett was in second place early in the race – ahead of eventual second place getter and series winner Johnnie Walker driving a Lola T332 – and entering the bridge turn Bartlett had the centre of the right rear Dymag wheel collapse sending the BT43 into the catch fences breaking Bartlett's leg and arm and significantly damaging the BT43.[3]

Points Awarded 20-15-12-10-8-6-4-3-2-1 for the top 10 places with double points for the final round
(key) (Results in bold indicate pole position; results in italics indicate fastest lap.)

Year	Entrant	Engine	Tyres	Drivers	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	DP	CP
1974	Adlards Crowne Racing	Chevrolet 302.0 cu in V8	F		BRH	MAL	SIL	OUL	BRH	ZOL	THR	ZAN	MUG	MNZ	MAL	MON	THR	BRH	OUL	SNE	MAL	BRH	8	8
				Martin Birrane										Ret	DNQ		Ret
				Brett Lunger														Ret
				Chris Craft																		7

Points Awarded 20-15-12-10-8-6-4-3-2-1 for the top 10 places with double points for the final round
(key) (Results in bold indicate pole position; results in italics indicate fastest lap.)

Year	Entrant	Engine	Tyres	Drivers	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	DP	CP
1975	Adlards	Chevrolet 302.0 cu in V8	F		BRH	OUL	BRH	SIL	ZOL	ZAN	THR	SNE	MAL	THR	BRH	OUL	SIL	SNE	MAL	BRH	-	-
				Brett Lunger	DNS			Ret

Points awarded
(key) (Results in bold indicate pole position; results in italics indicate fastest lap.)

Year	Entrant	Engine	Tyres	Drivers	1	2	3	4	5	6	7	8	9	DP	CP
1975	Chuck Jones	Chevrolet 302.0 cu in V8	G		POC	MOS	WGL	ROA	MDO	ATL	LBH	LAG	RIV	-	-
				Dick Parsons									DNA

1978 points awarded on a 9-6-4-3-2-1 basis for the first six places at each round.
1979 points awarded on a 10-9-8-7-6-5-4-3-2-1 basis for the first ten places at each of the first three rounds and on a 15-14-13-12-11-10-9-8-7-6-5-4-3-2-1 basis for the first fifteen places at the fourth round.
(key) (Results in bold indicate pole position; results in italics indicate fastest lap.)

Year	Entrant	Engine	Tyres	Drivers	1	2	3	4	DP	CP
1978	Shellsport	Chevrolet 302.0 cu in V8	D		SAN	AIR	SPI	OPR	-	-
				Kevin Bartlett	Ret	8	15	Ret
1979	Thompsons Motor Auctions	Chevrolet 302.0 cu in V8	D		SAN	AIR	SPI	OPR	12	12
				Colin Bond	Ret	NC	Ret	4

1978 Championship points were awarded on a 9-6-4-3-2-1 basis to the first six place-getters at each round.
Where a round was contested in two heats, points were allocated on a 20-16-13-11-10-9-8-7-6-5-4-3-2-1 basis to the first 14 place-getters in each heat. The six drivers attaining the highest aggregate from both heats were then awarded the championship points for that round. Where more than one driver attained the same total, the relevant placing was awarded to the driver who was higher placed in the last heat.
1979 Championship points were awarded on a 9-6-4-3-2-1 basis to the first six placegetters in each race.
(key) (Results in bold indicate pole position; results in italics indicate fastest lap.)

Year	Entrant	Engine	Tyres	Drivers	1	2	3	DP	CP
1978	Roadstar NSW	Chevrolet 302.0 cu in V8	G		OPR	SAN	CAL	8	8
				Kevin Bartlett	2	5	Ret
1979	Nine Wide World of Sports	Chevrolet 302.0 cu in V8	D		WAN	OPR	SAN	-	-
				Kevin Bartlett		DNS	Ret