RV8-List Digest Archive

Wed 04/28/10


Total Messages Posted: 3



Today's Message Index:
----------------------
 
     1. 07:32 AM - Re: Taxi Test (Speedy11@aol.com)
     2. 08:49 AM - Matt: (Martin Sobel)
     3. 10:53 AM - Re: Matt: (Wally Allington)
 
 
 


Message 1


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    Time: 07:32:29 AM PST US
    From: Speedy11@aol.com
    Subject: Re: Taxi Test
    Matt, You are going to be very impressed with the full power takeoff. On your first takeoff, don't rush the throttle forward as you might do in a Cessna. If you do, the P factor and torque will turn the airplane. Feed power in smoothly and quickly, but not suddenly - if that makes sense. I was surprised at the power on my first takeoff. So much was happening so fast that I was at liftoff speed before I'd checked all the gauges. I had the same smoking brakes during my taxi test. I did a long taxi and then a run down the runway. I had obviously been dragging the brakes, just as you did, and mine were smoking after clearing the runway. Fortunately, I did only one "abort" down the runway rather than two and my brakes did not get as hot as yours. I believe we need to advise first time builders who are ready to do a taxi test about the problem of inadvertently dragging the brakes. Dragging the brakes is very easy to do and it overheats the brakes and makes a huge mess. I am now very careful about dragging the brakes - although normally you only taxi out to the runway and as soon as you take off the airflow rapidly cools the brakes. The problem will occur if you have to abort the takeoff - better have a fire bottle handy. I believe new builders should do taxi tests with the wheel pants off. That allows for better brake cooling. I did my taxi test with the pants on and the restricted airflow around the brakes contributed to the problem. Stan Sutterfield Oh my... What will FULL throttle be like!?


    Message 2


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    Time: 08:49:26 AM PST US
    Subject: Matt:
    From: Martin Sobel <rv8vator@comcast.net>
    I don't think that Van approves the "High Speed" Taxi. And I agree. Too many times when people have found themselves off the ground, totally unprepared. You also saw the power of TO's and Landings down wind. I don't think there is an airplane made today that allows more than a 10 knot tailwind. MARTIN SOBEL FAASTeam Lead Representative Captain (Ret) TWA FlightSafety International (Ret) 941-359-8693 941-355-7732 (Fax) 941-539-4806 (Cell)


    Message 3


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    Time: 10:53:36 AM PST US
    From: "Wally Allington" <RV8@summergrove.net>
    Subject: Matt:
    Beware of hot brakes also. Have fun. We are loving ours. Wally Allington RV-8 N732W -----Original Message----- From: owner-rv8-list-server@matronics.com [mailto:owner-rv8-list-server@matronics.com] On Behalf Of Martin Sobel Sent: Wednesday, April 28, 2010 11:49 AM Subject: RV8-List: Matt: I don't think that Van approves the "High Speed" Taxi. And I agree. Too many times when people have found themselves off the ground, totally unprepared. You also saw the power of TO's and Landings down wind. I don't think there is an airplane made today that allows more than a 10 knot tailwind. MARTIN SOBEL FAASTeam Lead Representative Captain (Ret) TWA FlightSafety International (Ret) 941-359-8693 941-355-7732 (Fax) 941-539-4806 (Cell)




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