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merc

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Posts posted by merc

  1. " AeroElectric Connection" by Bob Nuckolls is an excellent reference.

     

    Thank you Downunder. That's a really nice write-up too!

     

    I've done some searching/reading of other sites and threads, and the principal intention (as stated here and elsewhere) does seem to be to protect the regulator from sudden loss of smoothing/load if the battery is disconnected from the regulator while the engine is still running.

     

    The Savannah is wired in such a way that the battery is permanently connected to the regulator, so this would seem to be less of an issue.

     

    (NB: see Below)

     

    However a secondary issue is the amount of noise/ripple at the regulator output, and the effect this may have on avionics etc. Once again, having the battery in circuit goes some way towards smoothing this out, but since the battery in the Savannah and many aircraft is some distance from the regulator, a capacitor at the regulator will provide improved smoothing. On that basis, I will install the capacitor.

     

    ideally the

     

    As noted here and elsewhere 22000uF 25V is a very skinny minimum spec. 40V or higher is less likely to fail. And ideally the capacitor should have a high temperature rating too: that hadn't occurred to me when I ordered my capacitor.

     

    And NB: Below

     

    Lots of pics show the regulator with C, B+ and R outputs jumpered together. This obviously works fine BUT:

     

    IF the aircraft is to be wired so that the battery is permanently connected to the regulator (as the Sav is), it looks as though these outputs have to be wired separately, otherwise the battery will discharge through C when the engine is not running.

     

    I haven't followed this through, this is just from the odd comments I picked up from other threads.

     

    In the Sav, B+ is wired to the starter solenoid and the battery only, R is wired to the master control switch, which then feeds the instrumentation etc. And C goes only to the Voltmeter and the Charge Indicator.

    " AeroElectric Connection " by Bob Nuckolls is an excellent reference for wiring aircraft, a must have if your building.

     

    Also Google "Matronics E mail list and go to the AeroElectric forum for every wiring question you ever thought of and plenty that never entered you head.

     

     

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  2. Did Jack sell it before the mid-60's, and if so, to whom? Whose clearing sale was it at, or did Jack just put it in someone's for the sake of getting rid of it?

     

    He seems to have been a real identity in the District.

    Not sure when Jack sold it, I think in the 40's it went through several owners, was around Newcastle for a while , ended up near Boggabri owned by Ron Willis, he also had a Pietenpol Sky Scout ( single seat ) powered by a Salmson. I think the Pietenpol is in the Tamworth area. The Corben and Pietenpol were sold at Ron's clearing sale feb. 65

     

     

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  3. I'm doing some research into the untold stories of Australian aviation and one of these is that of the Narromine-built biplane that I saw in the museum there.

     

    I'd like to know the name of the constructor/pilot and details of the plane. If anyone can get me this info, I'd be most appreciative.

     

    Old Man Emu

    The Corben Super Ace was designed to use a converted A model Ford car engine, ( with a dry weight of approx. 100kg it required the pilot be located behind the wing for c. of g. reasons). When Jack Coomber built his in Narromine he used a French Salmson A D 9

     

    a 3.3 litre 9 cyl. radial of 40 to 50hp.

     

    The Salmson was much lighter so he had to extend the forward fuselage giving it the long nose.

     

    Jacks Corben flew around the north west of NSW from the late 30's to mid 60's

     

     

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