The early jet aircraft (which had the engine mounted in the fuselage) used a nose intake with a long duct back to the engine. What are the pros and cons of this configuration? It must have been considered the best configuration by many great minds because it was used on both sides of the pond for a few generations of aircraft (although its use seems to have petered out by the mid-50s).
I ask because I have long wondered if this configuration would be suitable for a very light jet. I remember reading about the issues Diamond had designing the two S ducts to get air back to the engine on the D-Jet (example from Plane & Pilot article: "One of the single greatest technical challenges Diamond has had to contend with, thus far, is its bifurcated engine duct design.")
One obvious drawback is that the duct will detract from the cabin space, requiring a larger fuselage radius and the associated increase in drag. Anything else?