Recent content by Brooke

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    Mystery instrument (P47D-5-RE)

    Here's the patent: Switch
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    Maneuverability vs Speed

    The Energy-Maneuverability theory developed by Boyd would be a good way to compare aircraft in dogfights. https://prc68.com/I/Aircraft.shtml#Fighter_Performance
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    Ball Engineering 500 Variometer (Rate of Climb) Info

    Hi: Looking for how to use the 3-way switch A-(center)-V and the knob "VOL". Also any documentation. Wallace & Tiernan FA 181 Altimeter
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    Links Instrument Flying Trainer

    Thank you VERY MUCH. I have added the version information to my Link Trainer section at: https://prc68.com/I/Aircraft.shtml#Link_Trainers
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    Information on German Bomben Torpedos

    Bombs are much more streamlined than aircraft, so when released they speed up and go faster than the plane that launched them. This was a BIG problem if the bomb was mounted on the center line of a plane with a propeller on the center line since the bomb would crash into the propeller. A...
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    Gyro Gunsights

    The gyro is not in gimbals but rather is a "rate gyro". That's to say it only moves a small amount. See the patent drawings at: Navy Mk. 18 Gun Sight
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    Big Guns aloft in WW2

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    50 cal (high rate of fire) vs 20mm cannon (hitting power)

    In the late 1950s I was in the Air Scouts and we met a Moffett Field Naval Air Station in Mountain View, California. At one of the meetings at the side of an F-8 Crusader jet we were told how it had shot itself. For gunnery practice a barge was used as a target while being towed, i.e. a moving...
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    ALE-27 & RR-97/AL Chaff

    Hi DogMan: I was in the Association of Old Crows for a few decades working on Electronic Countermeasures. All the stuff on my Radar Warning Receivers web is not at all classified.
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    ALE-27 & RR-97/AL Chaff

    I'm looking for information on the subject items which I think work with each other. In particular how to open the RR-97/AL chaff brick and documentation on the ALE-27 system. Radar Warning Receivers Radar Warning Receivers
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    British Bomb Sights

    Iron bombs never worked in a precision mode and never will. Gyroscopes TED: Malcolm Gladwell: The strange tale of the Norden bombsight Even today there's debate on how to shoot a rifle at 1,000 yards: FN FAL Rifle All the things that effect bullets also effect bombs, torpedoes & artillery...
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    Could proximity fuses have halted the bomber offensive against Germany in 1944?

    There are many flavors of proximity fuzes (a fuse is an electrical device, a fuze is used to set of explosives). One of those flavors is if the projectile rotates or not. Fuzes for antiaircraft missiles are a different animal from gun projectile fuses. For more on that see: China Lake Patents
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    Nose Art

    Hi: Many years ago we had for dinner a guy that lived here in Ukiah, California who painted W.W.II nose art, but I forget his name. Can anyone remind me? He told to going from base to base and painting as a living. There may have been a model posing for some of them.
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    Dive bomber accuracy in perspective.

    Yes, exactly. Dive bombers were effective. But not horizontal bombing. Mk 20 Mod 4 Gun-Bomb Sight
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    Gyro Gunsights

    The gyro gunsight is NOT gimbled but rather constrained with springs. As the plane with the gyro sight turns to follow a target that puts a force on the gyro which then moves in a direction 90 degrees from the force and 90 degrees from the spin axis. Causing the image in the gunsight to lead...
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