Lockheed XV-4B Hummingbird

 

In 1964, when the XV-4A proved unsatisfactory, the remaining Hummingbird was modified with four General Electric J85-GE-19 lift engines (3,000 lb thrust) for hover. Two additional J85 engines provided thrust during horizontal flight. During hover, large diverter valves directed the cruise engine exhaust on each side through the fuselage to a nozzle between the lift engines for additional vertical thrust. In transition, one lift/cruise engine was diverted, while the other provided forward thrust. Pitch and yaw jets at the nose and tail provided control in hover. Maximum vertical take-off weight was 12,600 lb. The Hummingbird II had a fly-by-wire dual channel autostabilization system.

It was rolled out on 4 June 1968 but was destroyed in a crash during a conventional flight on 14 March 1969, without ever making a hover.

Source: AHS V/STOL Wheel

 
 

Image coming soon!
Overview
Parent type
struct
EVENTNAME onRequest
EXCEPTION
struct
Cause
struct
Detail [empty string]
ErrNumber 0
Message Variable AIRCRAFTID is undefined.
StackTrace coldfusion.runtime.UndefinedVariableException: Variable AIRCRAFTID is undefined. at coldfusion.runtime.CfJspPage._get(CfJspPage.java:462) at coldfusion.runtime.CfJspPage._get(CfJspPage.java:417) at coldfusion.runtime.CfJspPage._get(CfJspPage.java:396) at coldfusion.runtime.CfJspPage._autoscalarize(CfJspPage.java:2371) at cfoverview2ecfm374882928.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraftIncludes\overview.cfm:129) at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:257) at coldfusion.tagext.lang.IncludeTag.handlePageInvoke(IncludeTag.java:749) at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:578) at coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:5274) at cfaircraft2ecfm1355239503._factor8(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm:401) at cfaircraft2ecfm1355239503.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm:1) at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:257) at coldfusion.tagext.lang.IncludeTag.handlePageInvoke(IncludeTag.java:749) at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:578) at coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:5274) at cfApplication2ecfc496519613$funcONREQUEST.runFunction(C:\home\vertipedia-legacy.vtol.org\wwwroot\Application.cfc:47) at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:654) at coldfusion.runtime.UDFMethod$ReturnTypeFilter.invoke(UDFMethod.java:584) at coldfusion.runtime.UDFMethod$ArgumentCollectionFilter.invoke(UDFMethod.java:547) at coldfusion.filter.FunctionAccessFilter.invoke(FunctionAccessFilter.java:95) at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:470) at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:443) at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:315) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:975) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:696) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:503) at coldfusion.runtime.AppEventInvoker.invoke(AppEventInvoker.java:115) at coldfusion.runtime.AppEventInvoker.onRequest(AppEventInvoker.java:308) at coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:569) at coldfusion.filter.RequestMonitorFilter.invoke(RequestMonitorFilter.java:43) at coldfusion.filter.MonitoringFilter.invoke(MonitoringFilter.java:40) at coldfusion.filter.PathFilter.invoke(PathFilter.java:162) at coldfusion.filter.IpFilter.invoke(IpFilter.java:45) at coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:97) at coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:28) at coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38) at coldfusion.filter.NoCacheFilter.invoke(NoCacheFilter.java:60) at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38) at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22) at coldfusion.filter.CachingFilter.invoke(CachingFilter.java:62) at coldfusion.CfmServlet.service(CfmServlet.java:231) at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:311) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:199) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:144) at coldfusion.monitor.event.MonitoringServletFilter.doFilter(MonitoringServletFilter.java:46) at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:47) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:168) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:144) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:168) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:130) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:359) at org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:447) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:935) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1826) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1189) at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:658) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63) at java.base/java.lang.Thread.run(Thread.java:834)
Suppressed
array[empty]
TagContext
array
1
struct
COLUMN 0
ID ??
LINE 129
RAW_TRACE at cfoverview2ecfm374882928.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraftIncludes\overview.cfm:129)
TEMPLATE C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraftIncludes\overview.cfm
TYPE CFML
2
struct
COLUMN 0
ID CFINCLUDE
LINE 401
RAW_TRACE at cfaircraft2ecfm1355239503._factor8(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm:401)
TEMPLATE C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm
TYPE CFML
3
struct
COLUMN 0
ID CF_AIRCRAFT
LINE 1
RAW_TRACE at cfaircraft2ecfm1355239503.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm:1)
TEMPLATE C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm
TYPE CFML
4
struct
COLUMN 0
ID CFINCLUDE
LINE 47
RAW_TRACE at cfApplication2ecfc496519613$funcONREQUEST.runFunction(C:\home\vertipedia-legacy.vtol.org\wwwroot\Application.cfc:47)
TEMPLATE C:\home\vertipedia-legacy.vtol.org\wwwroot\Application.cfc
TYPE CFML
Type Expression
name AIRCRAFTID
Detail An exception occurred while invoking an event handler method from Application.cfc. The method name is: onRequest.
Message Event handler exception.
RootCause
struct
Detail [empty string]
ErrNumber 0
Message Variable AIRCRAFTID is undefined.
StackTrace coldfusion.runtime.UndefinedVariableException: Variable AIRCRAFTID is undefined. at coldfusion.runtime.CfJspPage._get(CfJspPage.java:462) at coldfusion.runtime.CfJspPage._get(CfJspPage.java:417) at coldfusion.runtime.CfJspPage._get(CfJspPage.java:396) at coldfusion.runtime.CfJspPage._autoscalarize(CfJspPage.java:2371) at cfoverview2ecfm374882928.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraftIncludes\overview.cfm:129) at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:257) at coldfusion.tagext.lang.IncludeTag.handlePageInvoke(IncludeTag.java:749) at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:578) at coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:5274) at cfaircraft2ecfm1355239503._factor8(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm:401) at cfaircraft2ecfm1355239503.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm:1) at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:257) at coldfusion.tagext.lang.IncludeTag.handlePageInvoke(IncludeTag.java:749) at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:578) at coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:5274) at cfApplication2ecfc496519613$funcONREQUEST.runFunction(C:\home\vertipedia-legacy.vtol.org\wwwroot\Application.cfc:47) at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:654) at coldfusion.runtime.UDFMethod$ReturnTypeFilter.invoke(UDFMethod.java:584) at coldfusion.runtime.UDFMethod$ArgumentCollectionFilter.invoke(UDFMethod.java:547) at coldfusion.filter.FunctionAccessFilter.invoke(FunctionAccessFilter.java:95) at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:470) at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:443) at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:315) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:975) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:696) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:503) at coldfusion.runtime.AppEventInvoker.invoke(AppEventInvoker.java:115) at coldfusion.runtime.AppEventInvoker.onRequest(AppEventInvoker.java:308) at coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:569) at coldfusion.filter.RequestMonitorFilter.invoke(RequestMonitorFilter.java:43) at coldfusion.filter.MonitoringFilter.invoke(MonitoringFilter.java:40) at coldfusion.filter.PathFilter.invoke(PathFilter.java:162) at coldfusion.filter.IpFilter.invoke(IpFilter.java:45) at coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:97) at coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:28) at coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38) at coldfusion.filter.NoCacheFilter.invoke(NoCacheFilter.java:60) at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38) at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22) at coldfusion.filter.CachingFilter.invoke(CachingFilter.java:62) at coldfusion.CfmServlet.service(CfmServlet.java:231) at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:311) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:199) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:144) at coldfusion.monitor.event.MonitoringServletFilter.doFilter(MonitoringServletFilter.java:46) at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:47) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:168) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:144) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:168) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:130) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:359) at org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:447) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:935) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1826) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1189) at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:658) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63) at java.base/java.lang.Thread.run(Thread.java:834)
Suppressed
array[empty]
TagContext
array
1
struct
COLUMN 0
ID ??
LINE 129
RAW_TRACE at cfoverview2ecfm374882928.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraftIncludes\overview.cfm:129)
TEMPLATE C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraftIncludes\overview.cfm
TYPE CFML
2
struct
COLUMN 0
ID CFINCLUDE
LINE 401
RAW_TRACE at cfaircraft2ecfm1355239503._factor8(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm:401)
TEMPLATE C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm
TYPE CFML
3
struct
COLUMN 0
ID CF_AIRCRAFT
LINE 1
RAW_TRACE at cfaircraft2ecfm1355239503.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm:1)
TEMPLATE C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm
TYPE CFML
4
struct
COLUMN 0
ID CFINCLUDE
LINE 47
RAW_TRACE at cfApplication2ecfc496519613$funcONREQUEST.runFunction(C:\home\vertipedia-legacy.vtol.org\wwwroot\Application.cfc:47)
TEMPLATE C:\home\vertipedia-legacy.vtol.org\wwwroot\Application.cfc
TYPE CFML
Type Expression
name AIRCRAFTID
StackTrace coldfusion.runtime.EventHandlerException: Event handler exception. at coldfusion.runtime.AppEventInvoker.onRequest(AppEventInvoker.java:319) at coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:569) at coldfusion.filter.RequestMonitorFilter.invoke(RequestMonitorFilter.java:43) at coldfusion.filter.MonitoringFilter.invoke(MonitoringFilter.java:40) at coldfusion.filter.PathFilter.invoke(PathFilter.java:162) at coldfusion.filter.IpFilter.invoke(IpFilter.java:45) at coldfusion.filter.ExceptionFilter.invoke(ExceptionFilter.java:97) at coldfusion.filter.ClientScopePersistenceFilter.invoke(ClientScopePersistenceFilter.java:28) at coldfusion.filter.BrowserFilter.invoke(BrowserFilter.java:38) at coldfusion.filter.NoCacheFilter.invoke(NoCacheFilter.java:60) at coldfusion.filter.GlobalsFilter.invoke(GlobalsFilter.java:38) at coldfusion.filter.DatasourceFilter.invoke(DatasourceFilter.java:22) at coldfusion.filter.CachingFilter.invoke(CachingFilter.java:62) at coldfusion.CfmServlet.service(CfmServlet.java:231) at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:311) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:199) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:144) at coldfusion.monitor.event.MonitoringServletFilter.doFilter(MonitoringServletFilter.java:46) at coldfusion.bootstrap.BootstrapFilter.doFilter(BootstrapFilter.java:47) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:168) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:144) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:168) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:130) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:359) at org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:447) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:935) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1826) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1189) at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:658) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:63) at java.base/java.lang.Thread.run(Thread.java:834) Caused by: coldfusion.runtime.UndefinedVariableException: Variable AIRCRAFTID is undefined. at coldfusion.runtime.CfJspPage._get(CfJspPage.java:462) at coldfusion.runtime.CfJspPage._get(CfJspPage.java:417) at coldfusion.runtime.CfJspPage._get(CfJspPage.java:396) at coldfusion.runtime.CfJspPage._autoscalarize(CfJspPage.java:2371) at cfoverview2ecfm374882928.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraftIncludes\overview.cfm:129) at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:257) at coldfusion.tagext.lang.IncludeTag.handlePageInvoke(IncludeTag.java:749) at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:578) at coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:5274) at cfaircraft2ecfm1355239503._factor8(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm:401) at cfaircraft2ecfm1355239503.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm:1) at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:257) at coldfusion.tagext.lang.IncludeTag.handlePageInvoke(IncludeTag.java:749) at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:578) at coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:5274) at cfApplication2ecfc496519613$funcONREQUEST.runFunction(C:\home\vertipedia-legacy.vtol.org\wwwroot\Application.cfc:47) at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:654) at coldfusion.runtime.UDFMethod$ReturnTypeFilter.invoke(UDFMethod.java:584) at coldfusion.runtime.UDFMethod$ArgumentCollectionFilter.invoke(UDFMethod.java:547) at coldfusion.filter.FunctionAccessFilter.invoke(FunctionAccessFilter.java:95) at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:470) at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:443) at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:315) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:975) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:696) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:503) at coldfusion.runtime.AppEventInvoker.invoke(AppEventInvoker.java:115) at coldfusion.runtime.AppEventInvoker.onRequest(AppEventInvoker.java:308) ... 36 more
Suppressed
array[empty]
TagContext
array
1
struct
COLUMN 0
ID ??
LINE 129
RAW_TRACE at cfoverview2ecfm374882928.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraftIncludes\overview.cfm:129)
TEMPLATE C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraftIncludes\overview.cfm
TYPE CFML
2
struct
COLUMN 0
ID CFINCLUDE
LINE 401
RAW_TRACE at cfaircraft2ecfm1355239503._factor8(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm:401)
TEMPLATE C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm
TYPE CFML
3
struct
COLUMN 0
ID CF_AIRCRAFT
LINE 1
RAW_TRACE at cfaircraft2ecfm1355239503.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm:1)
TEMPLATE C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm
TYPE CFML
4
struct
COLUMN 0
ID CFINCLUDE
LINE 47
RAW_TRACE at cfApplication2ecfc496519613$funcONREQUEST.runFunction(C:\home\vertipedia-legacy.vtol.org\wwwroot\Application.cfc:47)
TEMPLATE C:\home\vertipedia-legacy.vtol.org\wwwroot\Application.cfc
TYPE CFML
Type Expression
name onRequest