Among the several designs by the engineers of Institute 109, there were already experimental products for three types of warhead models.
The first type detonated in the air and fired scattered steel balls in a directional direction. Its function was somewhat similar to an anti-infantry mine. Because it could hit from multiple angles, its effective lethality within a fan-shaped range was even better than an anti-infantry mine. It also had the flexibility of attack that landmines did not have.
The second type was equipped with an impact fuse in addition to remote detonation. Its effective lethality was about three meters. The main target was enemy firing points and snipers that might appear on the battlefield. If the finished product could meet the design parameters, within the optimal sniping range of 500 to 1,500 meters, it could be said to be a shooter's nightmare.
Once targeted by this little thing with a design speed of more than 30 meters per second, unless the target shooter could discover it in advance and had a "snakeskin" that was far beyond ordinary people, it would be difficult to get rid of the pursuit.
The third was the smoke function. There were two small models of this functional model. The first model could be directly detonated in the target airspace, forming a smoke-covered area with a diameter of about ten meters and a height of about six meters. The effective duration of the smoke-covered area was about three minutes in the absence of wind. It could provide multi-purpose tactical support to the actions of our soldiers on the battlefield.
The second model could continuously spray a smoke screen of more than 30 meters, but the duration was shorter. It was mainly used to provide more accurate movement cover for battlefield rescue and individual mobility.
In addition to these three prototype designs, there were also two electromagnetic interference and anti-armor models that were still in the design process.
Qu Sen followed Zhou Li to Institute 109 this time as the original designer of the "Qin Crossbow" to observe the live-fire testing of the three warheads.
Although Institute 109 was a research unit under the Infinite Vehicle Research Institute, it was a relatively independent research institute. Its main research direction was the development of military-use remotely piloted aircraft.
The research institute's main research direction was medium-large drones, but several design proposals lost to other similar research and development units in the evaluation, resulting in a large number of research funds going down the drain.
Now that the entire military had begun large-scale disbandment and consolidation of a group of small and medium-sized research units that were repetitive and did not have good results, the leaders could almost be described as having sleepless nights.
When they noticed the battlefield application prospects of small drones, they quickly decided to gather all the superior resources of the institute and focus on small drones. Their goal was to come up with a practical design in the true sense before the other research institutes in the military carried out related research and become the leader in this field.
It was precisely because of this determination that Qu Sen and the other two's first-generation products were able to progress to this stage in less than two months.
When Qu Sen and Zhou Li arrived, they received a warm welcome from the entire Institute 109. The first test, which was supposed to begin the previous afternoon, was delayed by a day and a half.
Qu Sen and Zhou Li rested in the guest house for the night. The next morning, they followed the leaders of Institute 109 to the experimental site.
After more than half a day of testing, the results could be said to be mixed. Among the four models of dual-rotor tactical UAVs that participated in the test, the anti-sniper model and smoke model I had good experimental parameters and basically met the initial design requirements.
However, because the anti-infantry model detonated in the air, the directional error of the fan-shaped impact surface was relatively large. Unlike anti-infantry mines, the steel balls that were ejected were not supported by the ground or solid objects, so their lethality was seriously lacking.
The test results showed that it could not penetrate the current mainstream protective helmet and cause effective damage. Even if multiple shots hit the imaginary enemy's body, it was difficult to make the enemy lose their combat ability in a short period of time.
The test results of the smoke model II were also very bad. The concentration and duration of the ejected smoke did not meet the initial design requirements. In addition, after the dual-rotor UAVs began to eject, they were affected by the reaction force, which seriously affected their control.
Two of the three prototypes fell during the test. The remaining one also seriously deviated from the preset execution trajectory because of its low controllability.
After the test work, the relevant design staff of Institute 109 held a summary meeting overnight. Qu Sen and Zhou Li were also invited to participate.
Because the leaders of the Wireless Vehicle Research Institute were present, although Qu Sen had some ideas about the design of the anti-infantry model, he did not speak. He listened with Zhou Li. After that, he asked Zhou Li to relay his ideas to the design team.
In fact, Qu Sen's idea was very simple. The anti-infantry model was tested because of the directional explosion, and the warhead detonated in a single direction. Qu Sen felt that this was the root cause of the instability of the attack fan and the lack of lethality.
He felt that since the UAVs could be used as consumables, why not waste more explosives? Using a principle similar to the recoilless cannon, the wake was used to offset the reaction force generated by the explosion of the warhead. In addition, this way, the kinetic energy of the ejected steel balls could be increased.
Expanding his train of thought, Smoke Emitter No. 2 could also simultaneously emit smoke upward while working. On one hand, this could improve the thin and uneven smoke, and on the other hand, it could also offset the upward force generated by the smoke emitter.
In fact, the solution Qu Sen came up with was very simple and did not require any technical content at all. When he told Zhou Li about it, he felt a little guilty. He thought that the designers at 109 Institute did not use similar designs because of other technical limitations.
Although Zhou Li felt that Qu Sen's idea was feasible, he also felt that the plan was too simple. When he told the two research teams, he also felt that the designers would not have thought of such a simple solution.
Who knew that after Qu Sen's idea was passed on, the two research teams were very excited. They completed the electronic model during the day and began to run the simulation in the computer environment overnight.
The next morning, after continuous modifications, the conclusion was that Qu Sen's solution was the best among the existing simulation solutions. The production cost and implementation difficulty were also the lowest.
This conclusion made Qu Sen, who was originally a guest observer, receive unprecedented attention from 109 Institute. They even sent out a formal invitation to him to participate in the research and development project.
Qu Sen was very self-aware of the importance they attached to him. The reason he was able to give suggestions so quickly was that his divergent thinking was really good. The other reason was that after the research and development team of the attack parts confirmed the design direction, their thinking temporarily entered a blind spot.
Actually, whatever he could think of, the designers would be able to easily figure it out as long as they turned their heads to take a look from a blind spot.
In addition, in terms of professionalism, he could not compare to them. Although he happened to make a little contribution, in the long run, even if he joined the design team, he would most likely be an idle person.
In order to prevent his identity as a "fake expert" from being seen through after a long time, it would be awkward for everyone. Therefore, Qu Sen used the reason that he was still in school to decisively reject 109 Institute's invitation.
The people at 101 Institute knew that Qu Sen's most important task at the moment was to get his bachelor's degree. After inviting Qu Sen twice and being rejected, they gave up.
However, the leader of the institute still said that in the future, the institute would give Qu Sen a copy of the relevant design and let him help with the design. He also welcomed any suggestions and design ideas.
In fact, the leader of 109 Institute's statement was more formal than practical. All of the design team's designs involved wireless control. Qu Sen was always with Professor Wu, so even if they did not say anything, Qu Sen could still see all of the design drawings.
If Qu Sen really had a good idea, he would definitely report it to Professor Wu or the Institute of 51-1.
However, in any case, Qu Sen's original incentive of being an "external researcher" was now firmly on his head.
When 109 Institute had a finished product in the future, in addition to being the original inventor of the "Qin crossbow", Qu Sen would also be noted as having made important contributions in the research and development process.
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