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<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD>
<BODY>
<a href="convertor.htm"><B>CONVERTOR</a>
<BR>
<b>DESCENT CALCULATOR</b>
<TABLE border=1 bgcolor="66CCCC" cellpadding=5>
<TR>
<TD><FONT SIZE=+1>GS </TD>
<TD>
<input type='text' id='GS' value='600' size='7' onChange='Calc(document.getElementById("GS").value, "GS");'> <I>km/h <br>
</TD>
</TR>
<TR>
<TD><FONT SIZE=+1>V/S</TD>
<TD>
<SELECT NAME="YS" value='50' onChange='Calc(document.getElementById("YS").value, "YS");'>
<OPTION value=50>50
<OPTION value=49>49
<OPTION value=48>48
<OPTION value=47>47
<OPTION value=46>46
<OPTION value=45>45
<OPTION value=44>44
<OPTION value=43>43
<OPTION value=42>42
<OPTION value=41>41
<OPTION value=40>40
<OPTION value=39>39
<OPTION value=38>38
<OPTION value=37>37
<OPTION value=36>36
<OPTION value=35>35
<OPTION value=34>34
<OPTION value=33>33
<OPTION value=32>32
<OPTION value=31>31
<OPTION value=30>30
<OPTION value=29>29
<OPTION value=28>28
<OPTION value=27>27
<OPTION value=26>26
<OPTION value=25>25
<OPTION value=24>24
<OPTION value=23>23
<OPTION value=22>22
<OPTION value=21>21
<OPTION value=20>20
<OPTION value=19>19
<OPTION value=18>18
<OPTION value=17>17
<OPTION value=16>16
<OPTION value=15>15
<OPTION value=14>14
<OPTION value=13>13
<OPTION value=12>12
<OPTION value=11>11
<OPTION value=10>10
<OPTION value=9>9
<OPTION value=8>8
<OPTION value=7>7
<OPTION value=6>6
<OPTION value=5>5
<OPTION value=4>4
<OPTION value=3>3
<OPTION value=2>2
<OPTION value=1>1
</SELECT><I> m/s<BR>
</TD>
</TR>
<TR>
<TD><FONT SIZE=+1>initial FL</TD>
<TD>
<SELECT NAME="intFL" onChange='Calc(document.getElementById("intFL").value, "intFL");'> <I>100 ft<BR>
<OPTION value=500>500
<OPTION value=490>490
<OPTION value=480>480
<OPTION value=470>470
<OPTION value=460>460
<OPTION value=450>450
<OPTION value=440>440
<OPTION value=430>430
<OPTION value=420>420
<OPTION value=410>410
<OPTION value=400>400
<OPTION value=390>390
<OPTION value=380>380
<OPTION value=370>370
<OPTION value=360>360
<OPTION value=350>350
<OPTION value=340>340
<OPTION value=330>330
<OPTION value=320>320
<OPTION value=310>310
<OPTION value=300>300
<OPTION value=290>290
<OPTION value=280>280
<OPTION value=270>270
<OPTION value=260>260
<OPTION value=250>250
<OPTION value=240>240
<OPTION value=230>230
<OPTION value=220>220
<OPTION value=210>210
<OPTION value=200>200
<OPTION value=190>190
<OPTION value=180>180
<OPTION value=170>170
<OPTION value=160>160
<OPTION value=150>150
<OPTION value=140>140
<OPTION value=130>130
<OPTION value=120>120
<OPTION value=110>110
<OPTION value=100>100
<OPTION value=90>90
<OPTION value=80>80
<OPTION value=70>70
<OPTION value=60>60
<OPTION value=50>50
<OPTION value=40>40
<OPTION value=30>30
<OPTION value=20>20
<OPTION value=10>10
</SELECT><I>100 ft<BR>
<TD><FONT SIZE=+1>diff ALT </TD>
<TD >
<input type='text' id='difAT' value='0' size='7' ReadOnly=true> <I> m<BR>
</TD>
</TD>
</TR>
<TR>
<TD><FONT SIZE=+1>target FL</TD>
<TD>
<SELECT NAME="tarFL" onChange='Calc(document.getElementById("tarFL").value, "tarFL");'> <I>100 ft<BR>
<OPTION value=500>500
<OPTION value=490>490
<OPTION value=480>480
<OPTION value=470>470
<OPTION value=460>460
<OPTION value=450>450
<OPTION value=440>440
<OPTION value=430>430
<OPTION value=420>420
<OPTION value=410>410
<OPTION value=400>400
<OPTION value=390>390
<OPTION value=380>380
<OPTION value=370>370
<OPTION value=360>360
<OPTION value=350>350
<OPTION value=340>340
<OPTION value=330>330
<OPTION value=320>320
<OPTION value=310>310
<OPTION value=300>300
<OPTION value=290>290
<OPTION value=280>280
<OPTION value=270>270
<OPTION value=260>260
<OPTION value=250>250
<OPTION value=240>240
<OPTION value=230>230
<OPTION value=220>220
<OPTION value=210>210
<OPTION value=200>200
<OPTION value=190>190
<OPTION value=180>180
<OPTION value=170>170
<OPTION value=160>160
<OPTION value=150>150
<OPTION value=140>140
<OPTION value=130>130
<OPTION value=120>120
<OPTION value=110>110
<OPTION value=100>100
<OPTION value=90>90
<OPTION value=80>80
<OPTION value=70>70
<OPTION value=60>60
<OPTION value=50>50
<OPTION value=40>40
<OPTION value=30>30
<OPTION value=20>20
<OPTION value=10>10
</SELECT><I>100 ft<BR>
</TD>
</TR>
<TR>
<TD><FONT SIZE=+1>time </TD>
<TD>
<input type='text' id='time' value='0' size='7' onChange='Calc(document.getElementById("time").value, "time");'> <I><I>min<BR>
</TD>
</TR>
<TR>
<TD><FONT SIZE=+1>distance km</TD>
<TD>
<input [disabled] type='text' id='diskm' value='0' size='7' onChange='Calc(document.getElementById("diskm").value, "diskm");'> <I>km<BR>
</TD>
</TR>
<TR>
<TD><FONT SIZE=+1>distance nm</TD>
<TD>
<input type='text' id='disnm' value='0' size='7' onChange='Calc(document.getElementById("disnm").value, "disnm");'> <I>nm<BR>
</TD>
</TR>
</TABLE>
<script language='JavaScript'>
Calc(500,'GS');
function Calc($value, $value_name){
var $GS,$YS, $intFL, $tarFL, $difAT, $time, $diskm, $disnm;
switch($value_name){
case 'GS':
$GS = $value;
$YS = 10
$intFL = 330
$tarFL = 100
$difAT = ($intFL-$tarFL)*30.48//document.getElementById('difAT').value;
$time = $difAT/$YS/60;
$diskm = $GS*$difAT/$YS/3600;
$disnm = $diskm/1.852;
break;
case 'YS':
$YS = $value;
$GS = document.getElementById('GS').value;
$intFL = document.getElementById('intFL').value;
$tarFL = document.getElementById('tarFL').value;
$difAT = ($intFL-$tarFL)*30.48//document.getElementById('difAT').value;
$time = $difAT/$YS/60;
$diskm = $GS*$difAT/$YS/3600;
$disnm = $diskm/1.852;
break;
// ------------------------------------------------
case 'intFL':
$intFL = $value;
$YS = document.getElementById('YS').value;
$GS = document.getElementById('GS').value;
$tarFL = document.getElementById('tarFL').value;
$difAT = ($intFL-$tarFL)*30.48//document.getElementById('difAT').value;
$time = $difAT/$YS/60;
$diskm = $GS*$difAT/$YS/3600;
$disnm = $diskm/1.852;
break;
case 'tarFL':
$tarFL = $value;
$YS = document.getElementById('YS').value;
$intFL = document.getElementById('intFL').value;
$GS = document.getElementById('GS').value;
$difAT = ($intFL-$tarFL)*30.48//document.getElementById('difAT').value;
$time = $difAT/$YS/60;
$diskm = $GS*$difAT/$YS/3600;
$disnm = $diskm/1.852;
break;
case 'difAT':
$difAT =document.getElementById('difAT').value;
$GS = document.getElementById('GS').value;
$tarFL = document.getElementById('tarFL').value;
//$difAT = ($intFL-$tarFL)*30.48//document.getElementById('difAT').value;
//$diskm = $GS*$difAT/$YS/3600;
$YS = document.getElementById('YS').value;
$time = document.getElementById('time').value;
$intFL = document.getElementById('intFL').value;
$diskm = document.getElementById('diskm').value;
$disnm = document.getElementById('disnm').value;
break;
// ------------------------------------------------
case 'time':
$time = $value;
$GS = document.getElementById('GS').value;
$intFL = document.getElementById('intFL').value;
$tarFL = document.getElementById('tarFL').value;
$difAT = ($intFL-$tarFL)*30.48//document.getElementById('difAT').value;
$YS = $difAT/$time/60;
$diskm = $GS*$difAT/$YS/3600;
$disnm = $diskm/1.852;
break;
case 'diskm':
$diskm = $value;
$GS = document.getElementById('GS').value;
$intFL = document.getElementById('intFL').value;
$tarFL = document.getElementById('tarFL').value;
$difAT = ($intFL-$tarFL)*30.48//document.getElementById('difAT').value;
//$diskm = $GS*$difAT/$YS/3600;
$disnm = $diskm/1.852;
$YS = $GS*$difAT/$diskm/3600;
$time = $difAT/$YS/60;
break;
case 'disnm':
$disnm = $value;
$GS = document.getElementById('GS').value;
$intFL = document.getElementById('intFL').value;
$tarFL = document.getElementById('tarFL').value;
$difAT = ($intFL-$tarFL)*30.48//document.getElementById('difAT').value;
//$diskm = $GS*$difAT/$YS/3600;
$diskm = $disnm*1.852;
$YS = $GS*$difAT/$diskm/3600;
$time = $difAT/$YS/60;
break;
}
document.getElementById('GS').value = (Math.round($GS*1))/1;
document.getElementById('YS').value = (Math.round($YS*1))/1;
document.getElementById('intFL').value = (Math.round($intFL*1))/1;
document.getElementById('tarFL').value = (Math.round($tarFL*1))/1;
document.getElementById('difAT').value = (Math.round($difAT*1))/1;
document.getElementById('time').value = (Math.round($time*1))/1;
document.getElementById('diskm').value = (Math.round($diskm*1))/1;
document.getElementById('disnm').value = (Math.round($disnm*1))/1;
}
</script>
</BODY>
</HTML>