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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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

Detail

The collection you specified does not exists or is not registered with the ColdFusion Search Service.

Message

The collection farcrytest_dmfile_file does not exist.

StackTrace

coldfusion.tagext.search.CollectionDoesNotExistException: The collection farcrytest_dmfile_file does not exist. at coldfusion.tagext.search.SearchTag.doSearch(SearchTag.java:230) 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

SearchEngine

name

farcrytest_dmfile_file

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

The collection you specified does not exists or is not registered with the ColdFusion Search Service.

Message

The collection farcrytest_dmfile_file does not exist.

StackTrace

coldfusion.tagext.search.CollectionDoesNotExistException: The collection farcrytest_dmfile_file does not exist. at coldfusion.tagext.search.SearchTag.doSearch(SearchTag.java:230) 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

SearchEngine

name

farcrytest_dmfile_file

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: coldfusion.tagext.search.CollectionDoesNotExistException: The collection farcrytest_dmfile_file does not exist. at coldfusion.tagext.search.SearchTag.doSearch(SearchTag.java:230) 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

SearchEngine

name

onRequest