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In the first chapters of the "Luck of the Dragon" online serial novel, there is mention of aerial piracy. It is of the 'intercept, reroute and pillage' variety rather than the more conventional 'hijack from within and take hostages' that was frequent in the 1970s. This got me musing on the logistics of such an operation.
Outside of the necessity of a pirate-friendly airport, the main issue is the performance gap : a cargo plane and fighter aircraft had similar performances in the 1930s so interception was feasible, but contemporary jet-powered cargo planes fly faster and higher than any propeller-driven plane pirates could get the hands on. Conventional jet/rocket engines are complex to build and maintain.
There is three jet propulsion technologies that are in reach for non-state actors : the motor-jet, pulse-jet and pressure jet. The latter was developed by Eugene Michael Gluhareff in the 1950s to power small helicopters. It is quite simple to build, but is not very efficient and run hot and loud. The side intake also makes installation into a fuselage more complicated.
This version aims to solve some of these problems by moving the intake to the front and mixing the jet of hot gas from the combustion chamber with a flow of cold air.
Outside of the necessity of a pirate-friendly airport, the main issue is the performance gap : a cargo plane and fighter aircraft had similar performances in the 1930s so interception was feasible, but contemporary jet-powered cargo planes fly faster and higher than any propeller-driven plane pirates could get the hands on. Conventional jet/rocket engines are complex to build and maintain.
There is three jet propulsion technologies that are in reach for non-state actors : the motor-jet, pulse-jet and pressure jet. The latter was developed by Eugene Michael Gluhareff in the 1950s to power small helicopters. It is quite simple to build, but is not very efficient and run hot and loud. The side intake also makes installation into a fuselage more complicated.
This version aims to solve some of these problems by moving the intake to the front and mixing the jet of hot gas from the combustion chamber with a flow of cold air.
Category Designs / Abstract
Species Unspecified / Any
Size 735 x 428px
File Size 94.3 kB
Listed in Folders
J'avoue que j'ai pas tout bien suivi - je comprends ce qui est dans le schéma, mais tu n'as pas tout dessiné, n'est-ce pas ? Tu dis par exemple qu'il y a plus d’éléments mécaniques mobiles, mais je n'en vois quasiment pas - tu n'as pas inclus les étages de compresseurs ? Là ça ressemble surtout à un stato en l'état !
La compression est assurée par le jet de propane vaporisé par la bobine de rechauffe, mais elle est relativement faible comparée à un compresseur mécanique. Pour des modèles de moteur allant de 20 à 80 livres de poussée, la consommation spécifique est de 4.6 à 4.8 livres de carburant par livre de poussée et par heure.
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