diff --git a/src/MultiPlayer/multiplaymgr.cxx b/src/MultiPlayer/multiplaymgr.cxx
index 07f31ab..4dc887a 100644
--- a/src/MultiPlayer/multiplaymgr.cxx
+++ b/src/MultiPlayer/multiplaymgr.cxx
@@ -2129,7 +2129,9 @@ FGMultiplayMgr::update(double dt)
   // check for expiry
   MultiPlayerMap::iterator it = mMultiPlayerMap.begin();
   while (it != mMultiPlayerMap.end()) {
-    if (it->second->getLastTimestamp() + 10 < stamp) {
+    //if (it->second->getLastTimestamp() + 10 < stamp) {
+    //zhongjin 处理ADS-B 数据，增加到60秒  
+    if (it->second->getLastTimestamp() + 60 < stamp) {
       std::string name = it->first;
       it->second->setDie(true);
       mMultiPlayerMap.erase(it);