Doak 16/VZ-4

 

The Doak 16, which received the Army designation VZ-4, was built in 1957. It was 32 ft long, had a gross weight of 3,200 lb, a tandem two-seat cockpit, and a 16 ft wingspan. Each wing ended in eight-bladed 4 ft wide propellers within tilting ducts; they were powered by a single 860 bhp Lycoming YT53 engine.

The first flight was made on 25 February 1958. Transition from hover to 200 kt could be made in less than 20 seconds. Variable inlet guide vanes controlled roll in hover, and engine exhaust gases were deflected at the rear of the fuselage for pitch and yaw control. Deceleration and descent had to be carefully controlled in order to prevent the lip of the duct from stalling, as well as to manage a large upward pitching moment from the ducts acting as a wing at a high angle of attack. The Doak 16 suffered from a lack of control power, but completed over 50 hours of testing and proved the feasibility of the tilt duct concept.

The only example of the Type can be seen in the US Army Transportation Museum at Fort Eustis.

Source: AHS V/STOL Wheel

 

 

Attribution

Attribution
Overview
Parent type *No type assigned
Variant *No Variant assigned
Design authority Doak Aircraft Company, Inc.
Primary manufacturer Doak Aircraft Company, Inc.
Key Characteristics
Operational status No longer flying
Max gross weight (ground) 1,452 n/a 1,452 n/a
Crew 1-2
Seating arrangement Tandem
Configuration
VTOL type Convertiplane
Compound type N/A
Lift configuration Tilt rotor/prop
Control device type Other
Features
Number of engines 1
Number of propulsors 0
Number of lift devices 2
Number of control devices 1
Milestones associated with the Doak 16/VZ-4
1958 First flight of the Doak 16/VZ-4

Doak 16/VZ-4

 

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Doak 16/VZ-4

 

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If you are not a member of AHS, why not join today? Be sure to also check out the many benefits enjoyed by AHS members.

 

Doak 16/VZ-4

 

This content is reserved for AHS members. If you are a current member, please use the Member Login link at the top of the page.

 

If you are not a member of AHS, why not join today? Be sure to also check out the many benefits enjoyed by AHS members.

 

Doak 16/VZ-4

 

This content is reserved for AHS members. If you are a current member, please use the Member Login link at the top of the page.

 

If you are not a member of AHS, why not join today? Be sure to also check out the many benefits enjoyed by AHS members.

 

Doak 16/VZ-4

 

This content is reserved for AHS members. If you are a current member, please use the Member Login link at the top of the page.

 

If you are not a member of AHS, why not join today? Be sure to also check out the many benefits enjoyed by AHS members.

 

Doak 16/VZ-4

 

Sorry, no operators have been defined for this aircraft yet.

struct
EVENTNAME onRequest
EXCEPTION
struct
Cause
struct
Message [empty string]
StackTrace java.lang.NullPointerException at coldfusion.tagext.search.SearchTag.doSearch(SearchTag.java:273) at coldfusion.tagext.search.SearchTag.doStartTag(SearchTag.java:188) at coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:4329) at cfresources2ecfc1629600113$funcGETAHSRESOURCES.runFunction(C:\home\vertipedia-legacy.vtol.org\wwwroot\components\resources.cfc:21) at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:554) at coldfusion.runtime.UDFMethod$ReturnTypeFilter.invoke(UDFMethod.java:485) at coldfusion.runtime.UDFMethod$ArgumentCollectionFilter.invoke(UDFMethod.java:448) at coldfusion.filter.FunctionAccessFilter.invoke(FunctionAccessFilter.java:95) at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:399) at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:372) at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:609) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:835) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:641) at coldfusion.runtime.CfJspPage._invoke(CfJspPage.java:3549) at coldfusion.runtime.CfJspPage._invoke(CfJspPage.java:3524) at coldfusion.tagext.lang.InvokeTag.doEndTag(InvokeTag.java:472) at cfrelatedResources2ecfm798745132.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraftIncludes\relatedResources.cfm:2) at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:262) at coldfusion.tagext.lang.IncludeTag.handlePageInvoke(IncludeTag.java:735) at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:565) at coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:4329) at cfaircraft2ecfm1355239503.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm:422) at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:262) at coldfusion.tagext.lang.IncludeTag.handlePageInvoke(IncludeTag.java:735) at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:565) at coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:4329) at cfapplication2ecfc496519613$funcONREQUEST.runFunction(C:\home\vertipedia-legacy.vtol.org\wwwroot\application.cfc:47) at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:554) at coldfusion.runtime.UDFMethod$ReturnTypeFilter.invoke(UDFMethod.java:485) at coldfusion.runtime.UDFMethod$ArgumentCollectionFilter.invoke(UDFMethod.java:448) at coldfusion.filter.FunctionAccessFilter.invoke(FunctionAccessFilter.java:95) at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:399) at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:372) at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:288) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:830) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:613) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:438) at coldfusion.runtime.AppEventInvoker.invoke(AppEventInvoker.java:115) at coldfusion.runtime.AppEventInvoker.onRequest(AppEventInvoker.java:308) at coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:551) 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:96) 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:226) at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:311) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) 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:189) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:377) at org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:463) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:889) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1743) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.base/java.lang.Thread.run(Thread.java:834)
Suppressed
array[empty]
TagContext
array
1
struct
COLUMN 0
ID CFSEARCH
LINE 21
RAW_TRACE at cfresources2ecfc1629600113$funcGETAHSRESOURCES.runFunction(C:\home\vertipedia-legacy.vtol.org\wwwroot\components\resources.cfc:21)
TEMPLATE C:\home\vertipedia-legacy.vtol.org\wwwroot\components\resources.cfc
TYPE CFML
2
struct
COLUMN 0
ID CFINVOKE
LINE 2
RAW_TRACE at cfrelatedResources2ecfm798745132.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraftIncludes\relatedResources.cfm:2)
TEMPLATE C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraftIncludes\relatedResources.cfm
TYPE CFML
3
struct
COLUMN 0
ID CFINCLUDE
LINE 422
RAW_TRACE at cfaircraft2ecfm1355239503.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm:422)
TEMPLATE C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm
TYPE CFML
4
struct
COLUMN 0
ID CFINCLUDE
LINE 47
RAW_TRACE at cfapplication2ecfc496519613$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 java.lang.NullPointerException
Detail An exception occurred while invoking an event handler method from Application.cfc. The method name is: onRequest.
Message Event handler exception.
RootCause
struct
Message [empty string]
StackTrace java.lang.NullPointerException at coldfusion.tagext.search.SearchTag.doSearch(SearchTag.java:273) at coldfusion.tagext.search.SearchTag.doStartTag(SearchTag.java:188) at coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:4329) at cfresources2ecfc1629600113$funcGETAHSRESOURCES.runFunction(C:\home\vertipedia-legacy.vtol.org\wwwroot\components\resources.cfc:21) at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:554) at coldfusion.runtime.UDFMethod$ReturnTypeFilter.invoke(UDFMethod.java:485) at coldfusion.runtime.UDFMethod$ArgumentCollectionFilter.invoke(UDFMethod.java:448) at coldfusion.filter.FunctionAccessFilter.invoke(FunctionAccessFilter.java:95) at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:399) at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:372) at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:609) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:835) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:641) at coldfusion.runtime.CfJspPage._invoke(CfJspPage.java:3549) at coldfusion.runtime.CfJspPage._invoke(CfJspPage.java:3524) at coldfusion.tagext.lang.InvokeTag.doEndTag(InvokeTag.java:472) at cfrelatedResources2ecfm798745132.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraftIncludes\relatedResources.cfm:2) at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:262) at coldfusion.tagext.lang.IncludeTag.handlePageInvoke(IncludeTag.java:735) at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:565) at coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:4329) at cfaircraft2ecfm1355239503.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm:422) at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:262) at coldfusion.tagext.lang.IncludeTag.handlePageInvoke(IncludeTag.java:735) at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:565) at coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:4329) at cfapplication2ecfc496519613$funcONREQUEST.runFunction(C:\home\vertipedia-legacy.vtol.org\wwwroot\application.cfc:47) at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:554) at coldfusion.runtime.UDFMethod$ReturnTypeFilter.invoke(UDFMethod.java:485) at coldfusion.runtime.UDFMethod$ArgumentCollectionFilter.invoke(UDFMethod.java:448) at coldfusion.filter.FunctionAccessFilter.invoke(FunctionAccessFilter.java:95) at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:399) at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:372) at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:288) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:830) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:613) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:438) at coldfusion.runtime.AppEventInvoker.invoke(AppEventInvoker.java:115) at coldfusion.runtime.AppEventInvoker.onRequest(AppEventInvoker.java:308) at coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:551) 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:96) 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:226) at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:311) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) 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:189) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:377) at org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:463) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:889) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1743) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.base/java.lang.Thread.run(Thread.java:834)
Suppressed
array[empty]
TagContext
array
1
struct
COLUMN 0
ID CFSEARCH
LINE 21
RAW_TRACE at cfresources2ecfc1629600113$funcGETAHSRESOURCES.runFunction(C:\home\vertipedia-legacy.vtol.org\wwwroot\components\resources.cfc:21)
TEMPLATE C:\home\vertipedia-legacy.vtol.org\wwwroot\components\resources.cfc
TYPE CFML
2
struct
COLUMN 0
ID CFINVOKE
LINE 2
RAW_TRACE at cfrelatedResources2ecfm798745132.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraftIncludes\relatedResources.cfm:2)
TEMPLATE C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraftIncludes\relatedResources.cfm
TYPE CFML
3
struct
COLUMN 0
ID CFINCLUDE
LINE 422
RAW_TRACE at cfaircraft2ecfm1355239503.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm:422)
TEMPLATE C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm
TYPE CFML
4
struct
COLUMN 0
ID CFINCLUDE
LINE 47
RAW_TRACE at cfapplication2ecfc496519613$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 java.lang.NullPointerException
StackTrace coldfusion.runtime.EventHandlerException: Event handler exception. at coldfusion.runtime.AppEventInvoker.onRequest(AppEventInvoker.java:319) at coldfusion.filter.ApplicationFilter.invoke(ApplicationFilter.java:551) 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:96) 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:226) at coldfusion.bootstrap.BootstrapServlet.service(BootstrapServlet.java:311) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) 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:189) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:377) at org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:463) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:889) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1743) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.base/java.lang.Thread.run(Thread.java:834) Caused by: java.lang.NullPointerException at coldfusion.tagext.search.SearchTag.doSearch(SearchTag.java:273) at coldfusion.tagext.search.SearchTag.doStartTag(SearchTag.java:188) at coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:4329) at cfresources2ecfc1629600113$funcGETAHSRESOURCES.runFunction(C:\home\vertipedia-legacy.vtol.org\wwwroot\components\resources.cfc:21) at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:554) at coldfusion.runtime.UDFMethod$ReturnTypeFilter.invoke(UDFMethod.java:485) at coldfusion.runtime.UDFMethod$ArgumentCollectionFilter.invoke(UDFMethod.java:448) at coldfusion.filter.FunctionAccessFilter.invoke(FunctionAccessFilter.java:95) at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:399) at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:372) at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:609) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:835) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:641) at coldfusion.runtime.CfJspPage._invoke(CfJspPage.java:3549) at coldfusion.runtime.CfJspPage._invoke(CfJspPage.java:3524) at coldfusion.tagext.lang.InvokeTag.doEndTag(InvokeTag.java:472) at cfrelatedResources2ecfm798745132.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraftIncludes\relatedResources.cfm:2) at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:262) at coldfusion.tagext.lang.IncludeTag.handlePageInvoke(IncludeTag.java:735) at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:565) at coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:4329) at cfaircraft2ecfm1355239503.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm:422) at coldfusion.runtime.CfJspPage.invoke(CfJspPage.java:262) at coldfusion.tagext.lang.IncludeTag.handlePageInvoke(IncludeTag.java:735) at coldfusion.tagext.lang.IncludeTag.doStartTag(IncludeTag.java:565) at coldfusion.runtime.CfJspPage._emptyTcfTag(CfJspPage.java:4329) at cfapplication2ecfc496519613$funcONREQUEST.runFunction(C:\home\vertipedia-legacy.vtol.org\wwwroot\application.cfc:47) at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:554) at coldfusion.runtime.UDFMethod$ReturnTypeFilter.invoke(UDFMethod.java:485) at coldfusion.runtime.UDFMethod$ArgumentCollectionFilter.invoke(UDFMethod.java:448) at coldfusion.filter.FunctionAccessFilter.invoke(FunctionAccessFilter.java:95) at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:399) at coldfusion.runtime.UDFMethod.runFilterChain(UDFMethod.java:372) at coldfusion.runtime.UDFMethod.invoke(UDFMethod.java:288) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:830) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:613) at coldfusion.runtime.TemplateProxy.invoke(TemplateProxy.java:438) at coldfusion.runtime.AppEventInvoker.invoke(AppEventInvoker.java:115) at coldfusion.runtime.AppEventInvoker.onRequest(AppEventInvoker.java:308) ... 39 more
Suppressed
array[empty]
TagContext
array
1
struct
COLUMN 0
ID CFSEARCH
LINE 21
RAW_TRACE at cfresources2ecfc1629600113$funcGETAHSRESOURCES.runFunction(C:\home\vertipedia-legacy.vtol.org\wwwroot\components\resources.cfc:21)
TEMPLATE C:\home\vertipedia-legacy.vtol.org\wwwroot\components\resources.cfc
TYPE CFML
2
struct
COLUMN 0
ID CFINVOKE
LINE 2
RAW_TRACE at cfrelatedResources2ecfm798745132.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraftIncludes\relatedResources.cfm:2)
TEMPLATE C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraftIncludes\relatedResources.cfm
TYPE CFML
3
struct
COLUMN 0
ID CFINCLUDE
LINE 422
RAW_TRACE at cfaircraft2ecfm1355239503.runPage(C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm:422)
TEMPLATE C:\home\vertipedia-legacy.vtol.org\wwwroot\aircraft.cfm
TYPE CFML
4
struct
COLUMN 0
ID CFINCLUDE
LINE 47
RAW_TRACE at cfapplication2ecfc496519613$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