Design and Development of a Cost-Effective Reloadable Motor …
449
Fig. 7 Rocket model and flight
was recorded to be 688 N. With this thrust force, the rocket reached an altitude of
1500 ft. The rocket model fabricated in this study and its testing is shown in Fig. 7.
3.3 Cost Analysis
A detailed cost-effective analysis of the developed rocket motor was carried out in
order to enable its commercial production. The analysis showed that the total cost
for preparing a considerable quantity of propellent mixture (KNSu) was as much as
Rs. 1000/- which could fill at least eight motors. The total cost for a single unit of
motor was found to be Rs. 500/- (approx.) which includes the cost of nozzle and
barrel. Table 2 shows the cost incurred in reloading the motor after the first launch.
As seen from the figure, the cost related to reloading of the motor is only Rs. 40/(approx).
4 Conclusions
This paper was aimed at the design and development of a cost-effective reloadable
motor for an experimental sounding rocket. The nozzle of the motor was carefully
designed following finite element simulations. The thrust force developed from the
motor was found to be 688 N and with this, it reached an altitude of 1500 ft above
the ground level. Finally, a cost-effective analysis of the motor was carried out and it
449
Fig. 7 Rocket model and flight
was recorded to be 688 N. With this thrust force, the rocket reached an altitude of
1500 ft. The rocket model fabricated in this study and its testing is shown in Fig. 7.
3.3 Cost Analysis
A detailed cost-effective analysis of the developed rocket motor was carried out in
order to enable its commercial production. The analysis showed that the total cost
for preparing a considerable quantity of propellent mixture (KNSu) was as much as
Rs. 1000/- which could fill at least eight motors. The total cost for a single unit of
motor was found to be Rs. 500/- (approx.) which includes the cost of nozzle and
barrel. Table 2 shows the cost incurred in reloading the motor after the first launch.
As seen from the figure, the cost related to reloading of the motor is only Rs. 40/(approx).
4 Conclusions
This paper was aimed at the design and development of a cost-effective reloadable
motor for an experimental sounding rocket. The nozzle of the motor was carefully
designed following finite element simulations. The thrust force developed from the
motor was found to be 688 N and with this, it reached an altitude of 1500 ft above
the ground level. Finally, a cost-effective analysis of the motor was carried out and it