Started by Weaver, October 12, 2018, 05:30:21 AM
Quote from: NARSES2 on October 12, 2018, 05:39:36 AMI've no idea regarding the technicalities of such a design, but it would mean you'd have a pretty thick tailplane
Quote from: Weaver on October 12, 2018, 05:30:21 AMRandom thought: for a twin-boom pusher-prop design, why not put the radiator on the leading edge of the tailplane? Okay, so you've got to duct the coolant down the booms, but they're pretty much empty anyway. It would also move some weight to the rear, allowing more guns or armour at the front.Thoughts?
Quote from: PR19_Kit on October 12, 2018, 06:48:35 AMYou could have the tailplane actually BE the radiator, or at least the upper surface of it.
Quote from: joncarrfarrelly on October 12, 2018, 08:26:57 PMOr just put the radiators in the booms like the P-38.
Quote from: crudebuteffective on October 13, 2018, 04:13:05 AMcooling fans on the radiators car style???
Quote from: Weaver on October 13, 2018, 05:12:27 AMQuote from: crudebuteffective on October 13, 2018, 04:13:05 AMcooling fans on the radiators car style???That's the usually proffered solution, but it has some problems in a 1930s/1940s aircraft context.1. The cooling fan is only needed during ground running, so it's dead weight and drag during most of the flight. 2. If the radiator is nowhere near the engine, then the fan needs to be either electrically powered or remotely powered in some other way. 1930s electric motors were relatively big and heavy by modern standards and mechanical/hydraulic systems would also add weight and complication.3. For a fan-cooled radiator to be efficient, it needs to be approximately square, so that a single fan can blow over most of it. Aircraft radiators were frequently long and thin, so that they could blend into wing shapes.4. Once in flight, the airflow will be trying to spin the fan, so it will need to either free-wheel, feather, or retract out of the airflow, all of which complicate the design still further.
Quote from: NARSES2 on October 13, 2018, 02:04:25 AMQuote from: PR19_Kit on October 12, 2018, 06:48:35 AMYou could have the tailplane actually BE the radiator, or at least the upper surface of it. Like some of the Schneider trophy designs had you mean ?
Quote from: zenrat on October 13, 2018, 06:17:00 AMI have been told, in discussions on a model hot rod forum with a pre 1969 only rule, that electric cooling fans on cars did not come into general use until the early seventies. However that may be a case of "it wasn't done" rather than "it couldn't have been done".
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