Red Devil
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Civilian application micro-drone. The drone is water proof which allows it to be used for city underground tunnels and tubes exploration. It uses tail for underwater propulsion and micro jet engines for flight.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi4DZIG0H8p6z-YpVPd3SeeUCQM6IM4TNjPSyF0J01buRulEUXqhnH8IfcI9x30wlbbwe6XgN8eIATOOe_t9JB4QIeD3hOSS6RXuSk3CkXFnGcojcmPrb3_ERECsjiPxgQ5nXdm4bcXinSm/s640/IMG_8789.jpg)
The evolution of design. Red Devil design started from first sketch with very bulky body.
![BS B1 spacecraft](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjUhbazbdY1m_NGhA1xRW4M0OTNs8C2XUTqIRfuImH1FC99h6pxDFC5kpWxsAlMEPfU8EFp7Gmfdh2XIo2pYFD-MToxrBv0pjOcINZFJZUNhAX2fv-oen-9cUOy2IxxUsmh587lHrqiEqQC/s640/bs-B1.jpg)
Lighter body with tail segments.
![BS B2 spacecraft](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTO1nquR44Z2wB7hvl4sum01kzcmpp_Gt-PWB3gNALoLDxUzec7Ahyphenhyphene3sL09QmQbUlejGPUTx1EM0CQPzt6LlDHfP7jVYpwXQ1SOfUNGJxTvS3G2fvTwMTMfUAmFT4Seyad_GQIrxh-6xc/s640/bsb2.jpg)
Third variant is seems to be good.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi4DZIG0H8p6z-YpVPd3SeeUCQM6IM4TNjPSyF0J01buRulEUXqhnH8IfcI9x30wlbbwe6XgN8eIATOOe_t9JB4QIeD3hOSS6RXuSk3CkXFnGcojcmPrb3_ERECsjiPxgQ5nXdm4bcXinSm/s640/IMG_8789.jpg)
The evolution of design. Red Devil design started from first sketch with very bulky body.
![BS B1 spacecraft](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjUhbazbdY1m_NGhA1xRW4M0OTNs8C2XUTqIRfuImH1FC99h6pxDFC5kpWxsAlMEPfU8EFp7Gmfdh2XIo2pYFD-MToxrBv0pjOcINZFJZUNhAX2fv-oen-9cUOy2IxxUsmh587lHrqiEqQC/s640/bs-B1.jpg)
Lighter body with tail segments.
![BS B2 spacecraft](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTO1nquR44Z2wB7hvl4sum01kzcmpp_Gt-PWB3gNALoLDxUzec7Ahyphenhyphene3sL09QmQbUlejGPUTx1EM0CQPzt6LlDHfP7jVYpwXQ1SOfUNGJxTvS3G2fvTwMTMfUAmFT4Seyad_GQIrxh-6xc/s640/bsb2.jpg)
Third variant is seems to be good.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgqBlxWrpBr0fz5a9N7NxoAVk44PH2lMcJqwSWhhA_-0edYtrx0WKyosgEWYRxcJREinDEJ1vZPEZ2u7pUl9JfRNauLzADOWOreTgGgAjwCcgReIJtEgCiqAZ5br6HRx8sjGkIn1TDJw-In/s640/BS-B3.jpg)