{"id":1127,"date":"2022-12-16T02:07:07","date_gmt":"2022-12-16T02:07:07","guid":{"rendered":"http:\/\/localhost\/rv10ca\/?page_id=1127"},"modified":"2022-12-22T16:24:13","modified_gmt":"2022-12-22T16:24:13","slug":"system-checkout","status":"publish","type":"page","link":"http:\/\/localhost\/rv10ca\/system-checkout\/","title":{"rendered":"System Checkout"},"content":{"rendered":"\n

Initial System checkout<\/strong><\/p>\n\n\n\n

There are a couple of concepts you should keep in mind \/ understand before performing these tests. These concepts are very important to understanding how the tests work.<\/p>\n\n\n\n

    \n
  1. Each ECU controls 1 set of spark plugs. Typically ECU # 1 controls the top spark plugs and ECU # 2 controls the bottom set. This does not change.<\/li>\n<\/ol>\n\n\n\n
      \n
    • When a single ECU is selected, the selected EWCU controls all 6 injectors. When \u201cBoth\u201d ECUs are selected, ECU 1 controls injectors 1,2 & 3 and ECU controls injectors 4,5 & 6.<\/li>\n<\/ul>\n\n\n\n

      Before first engine start, there are a few things you should do to ensure the system is installed correctly.<\/p>\n\n\n\n

        \n
      1. Confirm that the primary and secondary maps contain identical information except for the magnet position values.<\/li>\n<\/ol>\n\n\n\n
          \n
        • Ensure that the magnet position value for the primary and secondary ECUs are set to the values specified by SDS.<\/li>\n<\/ul>\n\n\n\n
            \n
          • Ensure that primary and secondary Hall sensors are connected to the corresponding ECU.<\/li>\n<\/ul>\n\n\n\n
              \n
            • Ensure all circuit breakers are \u201cin\u201d.<\/li>\n<\/ul>\n\n\n\n

              ECU Operation Test (Confirms ECUs are operating correctly and need only<\/u> be done as part of initial system checkout. It should not be done as part of a pre-flight test.)<\/em><\/p>\n\n\n\n

                \n
              1. Start engine and bring to idle RPM<\/u><\/strong>.<\/li>\n\n\n\n
              2. Select ECU 1. Pull circuit breaker for ECU 2. Engine should continue operation with a 75-100 RPM drop.<\/li>\n\n\n\n
              3. Reset circuit breaker for ECU 2.<\/li>\n\n\n\n
              4. Select ECU 2. Pull circuit breaker for ECU 1. Engine should continue operation with a 75-100 RPM drop.<\/li>\n\n\n\n
              5. Reset circuit breaker for ECU 1.<\/li>\n<\/ol>\n\n\n\n

                Notes: When ECU 1 or ECU 2 is selected only the selected ECU is controlling engine injectors operation along with a single coil pack. This results in a RPM drop.<\/em><\/p>\n\n\n\n

                If the ECU select switch is on the BOTH position, injectors 1-3 are controlled by ECU 1 and injectors 4-6 are controlled by ECU 2. Consequently, if either ECU circuit breaker is pulled, then engine will be running on only three injectors causing a very rough engine. This is not recommended.<\/u><\/strong><\/em><\/p>\n\n\n\n

                Pre-flight Runup \u2013 Normal Operation<\/strong><\/p>\n\n\n\n

                The tests below should be done before each flight as part of the normal run up process.<\/em><\/p>\n\n\n\n

                The runup process for the SDS system is similar to the process for a conventional dual magneto aircraft. Once oil temperature has reached 100F+ the following steps are suggested:  <\/p>\n\n\n\n

                  \n
                1. Ensure both Coil Packs are on<\/li>\n\n\n\n
                2. Ensure ECU select switch is on Both<\/li>\n\n\n\n
                3. Throttle up to 2,100 rpm<\/li>\n<\/ol>\n\n\n\n

                  Coil Pack Test (this is analogous to a magneto check)<\/em><\/p>\n\n\n\n

                    \n
                  1. Switch Coil Pack 1 off. A 75-100 RPM drop should be noted.<\/li>\n\n\n\n
                  2. Switch Coil Pack 1 On.<\/li>\n\n\n\n
                  3. Switch Coil Pack 2 off. A 75-100 RPM drop should be noted.<\/li>\n\n\n\n
                  4. Switch Coil Pack 2 On.<\/li>\n<\/ol>\n\n\n\n

                    ECU Injector Control Test (Confirms each ECU can control all 6 injectors)<\/em><\/p>\n\n\n\n

                      \n
                    1. Select ECU 1. No change in engine rpm \/ operation should be noted.<\/li>\n\n\n\n
                    2. Select ECU 2. No change in engine rpm \/ operation should be noted.<\/li>\n<\/ol>\n\n\n\n

                      Fuel Pump Operation Test<\/p>\n\n\n\n

                      It is imperative that both fuel pumps are operating correctly for safe flight.<\/p>\n\n\n\n

                        \n
                      1. Switch both fuel pumps on and note fuel pressure.<\/li>\n\n\n\n
                      2. Switch fuel pump # 1 off \u2013 there should be only a minimal change in pressure.<\/li>\n\n\n\n
                      3. Switch fuel pump # 1 on and number 2 off. Again, the fuel pressure drop should be minimal<\/li>\n<\/ol>\n\n\n\n

                        Prop Check<\/p>\n\n\n\n

                          \n
                        1. Cycle prop in accordance with prop manufacturer recommendations.<\/li>\n<\/ol>\n\n\n\n

                          After completion of these tests, close throttle returning engine to idle RPM<\/u><\/strong>.<\/p>\n\n\n\n

                          If any anomalous behavior is detected, the underlying issue(s) must be identified and corrected before flight.<\/strong><\/p>\n\n\n\n

                          Before Take Off Checks<\/p>\n\n\n\n

                            \n
                          1. Ensure all circuit breakers are \u201cin\u201d. Abort take-off if any circuit breaker(s) have failed and resolve cause before further flight.<\/li>\n\n\n\n
                          2. Ensure ECU select switch is on \u201cboth\u201d.<\/li>\n\n\n\n
                          3. Ensure Coil Packs 1 & 2 are both \u201con\u201d.<\/li>\n\n\n\n
                          4. Ensure Fuel pumps 1 & 2 are both \u201con\u201d.<\/li>\n\n\n\n
                          5. Ensure LOP (lean of peak) is \u201coff\u201d.<\/li>\n\n\n\n
                          6. Ensure mixture knob is set to desired position.<\/li>\n\n\n\n
                          7. Complete any other required pre-takeoff checks.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

                            Initial System checkout There are a couple of concepts you should keep in mind \/ understand before performing these tests. These concepts are very important to understanding how the tests work. Before first engine start, there are a few things you should do to ensure the system is installed correctly. […]<\/p>\n","protected":false},"author":1,"featured_media":513,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"_links":{"self":[{"href":"http:\/\/localhost\/rv10ca\/wp-json\/wp\/v2\/pages\/1127"}],"collection":[{"href":"http:\/\/localhost\/rv10ca\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/localhost\/rv10ca\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/localhost\/rv10ca\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/localhost\/rv10ca\/wp-json\/wp\/v2\/comments?post=1127"}],"version-history":[{"count":4,"href":"http:\/\/localhost\/rv10ca\/wp-json\/wp\/v2\/pages\/1127\/revisions"}],"predecessor-version":[{"id":1144,"href":"http:\/\/localhost\/rv10ca\/wp-json\/wp\/v2\/pages\/1127\/revisions\/1144"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/localhost\/rv10ca\/wp-json\/wp\/v2\/media\/513"}],"wp:attachment":[{"href":"http:\/\/localhost\/rv10ca\/wp-json\/wp\/v2\/media?parent=1127"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}