From: andy <andy>
Date: Wed, 23 Mar 2005 18:54:58 +0000 (+0000)
Subject: Insert a sanity hack from Melchior that apparently prevents a NaN from
X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=c89e5203a55c7ce4adc73c0fe16ca7d8ffc5afc6;p=flightgear.git

Insert a sanity hack from Melchior that apparently prevents a NaN from
popping up and crashing when the B-29 model is in use.  This isn't the
right solution; we should fine the NaN condition.  But it's harmless
and allows development with the B-29 to continue.
---

diff --git a/src/FDM/YASim/PropEngine.cpp b/src/FDM/YASim/PropEngine.cpp
index 866ef8165..ca5e51bf7 100644
--- a/src/FDM/YASim/PropEngine.cpp
+++ b/src/FDM/YASim/PropEngine.cpp
@@ -176,6 +176,8 @@ void PropEngine::integrate(float dt)
     _eng->setFuelState(_fuel);
     
     _prop->calc(_rho, speed, _omega * _gearRatio, &thrust, &propTorque);
+    if(_omega == 0.0)
+        _omega = 0.001; // hack to get around reports of NaNs somewhere...
     propTorque *= _gearRatio;
     _eng->calc(_pressure, _temp, _omega);
     _eng->integrate(dt);