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Mike Kanze wrote:
Jacek & all, I think the "what's better" aspects of hose-and-drogue versus flying boom refueling should really focus on the relative maneuverability of the "tankee" aircraft. A "heavy" like a B-52 has considerably more inertia than a small pointy-nose like the F/A-18. So it makes much more sense to fuel heavies with a flying boom, which does not have as much inertia to overcome when close-in maneuvering is needed. While a hose-and-drogue will "dance" much more in the airstream, the disparity in inertia between it and a small aircraft is much less. The F/A-18 and similar can more easily "dance" with the basket than a "heavy" might. This doesn't make hose-and-drogue plugs - especially night plugs - any nicer for the "tankee," though. The emphasis is still on the "tankee" to successfully plug... ...and hope the package is "sweet." I've been wondering -- although it would undoubtedly eliminate much of the cost and simplicity advantage of probe and drogue over boom and receptacle, does anyone here think it would it be technically possible, given modern miniaturization, to develop a drogue with active stabilization? After all, KC-10 booms have been FBW for 25 years or so, so given miniaturized controls and inertial elements, could a drogue be space-stabilized so it didn't bounce around as much in turbulence? Could you even use fiber-optics and guide the drogue manually (in multi-place tankers)? Would such a capability be useful, or is it just easier to let it move around and have the a/c chase it? Alternatively, would it be better to have the drogue seek the probe, in somewhat similar fashion to the way a radar or IR seeker attempts to null out error messages? Just thinking out loud in the wee hours. Guy |
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