23.12.2012 Views

FIRST STEPS TOWARD SPACE - Smithsonian Institution Libraries

FIRST STEPS TOWARD SPACE - Smithsonian Institution Libraries

FIRST STEPS TOWARD SPACE - Smithsonian Institution Libraries

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

NUMBER 10<br />

possibilities of using liquid propellant rockets for<br />

flights with low trajectories.<br />

After the 07 and 09 rocket projects, work on the<br />

05 rocket was begun. This rocket (Figure 8) was<br />

designed to use the nitric acid/kerosene ORM-50<br />

engine developed by GDL. Design of the rocket was<br />

completed in 1933 when the Rocket Research Institute<br />

was being organized, and RNII continued its<br />

further development.<br />

On the basis of the 05 rocket's design, RNII<br />

developed, under the sponsorship of the Ail-Union<br />

Aeronautic Research and Technical Society<br />

(Aviavnito) the stratospheric rocket "Aviavnito"<br />

(Figure 9). It used the 12-K liquid rocket engine<br />

which operated on liquid oxygen/96% alcohol<br />

and generated 300 kg thrust for a duration of<br />

60 sec. However, the flat stabilizing fins of the<br />

05 rocket were replaced with new, profiled hollow<br />

fins. The initial rocket weighed approximately<br />

100 kg, of which 32 kg was propellant. The 12-K<br />

motor developed a specific impulse of 205-207<br />

kg-sec/kg. The entire engine installation weighed<br />

15 kg. 4 The rocket was designed to reach an altitude<br />

of 10,800 m and contained a parachute. An altimeter,<br />

of the barograph type developed by S. A.<br />

Pivovarov, was mounted on the rocket.<br />

The initial launching of the Aviavnito rocket took<br />

place on 6 April 1936. Pravda published a article<br />

about the launching which included a photo of the<br />

rocket in the launching position prior to take-off.<br />

The correspondent described the rocket flight as<br />

follows:<br />

The engineer has switched on the electric ignition plug.<br />

Gray smoke of evaporating propellant. Spark. And suddenly<br />

a dazzling yellow flame appeared at the base of the rocket.<br />

The rocket moved slowly up the guide rods of the launching<br />

frame, slipped out of its steel embrace and rushed upwards.<br />

"••"<br />

FIGURE 8.—Drawing of Rocket 05.<br />

291<br />

The (light was an extremely impressive and beautiful spectacle.<br />

A flame rushed out of the motor nozzle. The rapid<br />

flow of gas was accompanied by a low-pitched roaring sound.<br />

A parachute opened showing its white canopy after the<br />

rocket reached a low altitude and then landed smoothly on<br />

a snow field/'<br />

For subsequent launchings a wooden tower was<br />

constructed with a guide, 48 m long, constructed<br />

from a narrow-gauge rail, which engaged the<br />

launching lugs of the rocket.<br />

On 15 August 1937 an Aviavnito rocket reached<br />

an altitude of 3000 meters, 6 but on descent the<br />

parachute was torn from the rocket, and the rocket<br />

was severely damaged upon impact.<br />

Some of the individuals working on the second<br />

team were, F. L. Yakitis, V. S. Suyev, V. N. Galkovsky,<br />

S. I. Kruglova, O. K. Parovina, N. I. Shul'gina,<br />

V. A. Andreyev, E. I. Snegireva, and N. I. Yefremov.<br />

In summary, the results of the GIRD second<br />

team's activity were as follows:<br />

1. Bringing about the flights of early liquid propellant<br />

rockets.<br />

2. First use of liquid oxygen and other oxidants<br />

in combination with various fuels.<br />

3. The first rocket to use liquid oxygen and a<br />

semisolid (hybrid) fuel.<br />

4. Initiation of the development of a pump driven<br />

by liquid oxygen.<br />

5. Developing and experimentally proving methods<br />

of calculating rocket design and performance.<br />

All the above problems were studied experimentally<br />

and in most cases results were obtained which subsequently<br />

served as the basis for realistic tasks and<br />

development programs.<br />

The main task of GIRD and its second team was<br />

to prove that the principle of jet propulsion was<br />

quite workable even with the state of the art of

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!