Bereznyak-Isayev BI-1
Powered flights
The BI was flown 12 times under power, seven times with Dushkin's D-1-A-1100 engine, three times with the DM-4 ramjets, and twice with Isaev's RD-1 rocket engine.

Bereznyak-Isayev BI-1

Section Title: Powered flights
Table Section Text: The BI was flown 12 times under power, seven times with Dushkin's D-1-A-1100 engine, three times with the DM-4 ramjets, and twice with Isaev's RD-1 rocket engine.

Date	Model	Pilot	Thrust, kgf	Burn Time, s	Altitude, m	Speed, km/h	Climb, m/s

2 May 1942	BI-1	Bakhchivandzhi	4.9 kN (1,100 lbf)	13	1 m (3 ft 3 in)	–	–

15 May 1942	BI-1	Backchivandzhi	5.886 kN (1,323 lbf)	66	840 m (2,760 ft)	400 km/h (220 kn; 250 mph)	23 m/s (4,500 ft/min)

10 Jan 1943	BI-2	Backchivandzhi	7.848 kN (1,764 lbf)	63	1,100 m (3,600 ft)	400 km/h (220 kn; 250 mph)	–

12 Jan 1943	BI-2	Gruzdev	10.79 kN (2,430 lbf)	58	2,190 m (7,190 ft)	675 km/h (364 kn; 419 mph)	–

11 Mar 1943	BI-3	Backchivandzhi	10.79 kN (2,430 lbf)	80	4,000 m (13,000 ft)	600 km/h (320 kn; 370 mph)	82 m/s (16,100 ft/min)

14 Mar 1943	BI-3	Backchivandzhi	10.79 kN (2,430 lbf)	84	3,000 m (9,800 ft)	~650 km/h (350 kn; 400 mph)	–

21 Mar 1943	BI-3	Backchivandzhi	10.79 kN (2,430 lbf)	30	3,000 m (9,800 ft)	550 km/h (300 kn; 340 mph)	160 m/s (31,000 ft/min)

27 Mar 1943	BI-3	Backchivandzhi	10.79 kN (2,430 lbf)	89	2,000 m (6,600 ft)	>800 km/h (430 kn; 500 mph)	–

Spring 1944	BI-6	Kudrin	–	–	–	–	–

Spring 1944	BI-6	Kudrin	–	–	–	–	–

Spring 1944	BI-6	Kudrin	–	–	–	–	–

24 Jan 1945	BI-7	Kudrin	10.79 kN (2,430 lbf)	72.3	1,250 m (4,100 ft)	587 km/h (317 kn; 365 mph)	87 m/s (17,100 ft/min)

09 Mar 1945	BI-7	Baykalov	10.79 kN (2,430 lbf)	73	3,500 m (11,500 ft)	550 km/h (300 kn; 340 mph)	–

Sentence(s)

On 15 May, Bakhchivandzhi flew the BI-1, reaching an altitude of 840 m (2,760 ft) and a maximum speed of 400 km/h (220 kn; 250 mph).

final_sentence: On 15 May, Bakhchivandzhi flew the BI-1, reaching an altitude of 840 m (2,760 ft) and a maximum speed of 400 km/h (220 kn; 250 mph).