Line II ?

I just downloaded a copy of "LineII" and haven't installed it at home yet. What are the required inputs and diemnsional units? Am I going to need to figure out the diameter of the control lines in "mils" or is it entered as a diameter in inches?

>I just downloaded a copy of "LineII" and haven't installed
>it at home yet. What are the required inputs and diemnsional
>units? Am I going to need to figure out the diameter of the
>control lines in "mils" or is it entered as a diameter in
>inches?

I'll have to wait until I get home for the entire details. But Mils = thousandths of an inch, so if you have .015 lines put in 15, and for .018 put in 18.

There is a metric or English setting.

Note also that the defaul window size does not quite cover the entire data frame, but there aren't any scroll bars. Just drag the window bigger to get the stuff at the bottoms.

>>I just downloaded a copy of "LineII" and haven't installed
>>it at home yet. What are the required inputs and diemnsional
>>units? Am I going to need to figure out the diameter of the
>>control lines in "mils" or is it entered as a diameter in
>>inches?
>
>I'll have to wait until I get home for the entire details.
>But Mils = thousandths of an inch, so if you have .015 lines
>put in 15, and for .018 put in 18.
>
> There is a metric or English setting.
>
> Note also that the defaul window size does not quite cover
>the entire data frame, but there aren't any scroll bars.
>Just drag the window bigger to get the stuff at the bottoms.
>
> Brett

...hmmm...

I thought "1 mil" was the area equal to a circle whose diameter is .001 inch...
not quite the same as the diameter in thousandths...

LAST EDITED ON Feb-24-04 AT 09:06 PM (CDT)
 
>>>I just downloaded a copy of "LineII" and haven't installed
>>>it at home yet. What are the required inputs and diemnsional
>>>units? Am I going to need to figure out the diameter of the
>>>control lines in "mils" or is it entered as a diameter in
>>>inches?
>>
>>I'll have to wait until I get home for the entire details.
>>But Mils = thousandths of an inch, so if you have .015 lines
>>put in 15, and for .018 put in 18.
>>
>> There is a metric or English setting.
>>
>> Note also that the defaul window size does not quite cover
>>the entire data frame, but there aren't any scroll bars.
>>Just drag the window bigger to get the stuff at the bottoms.
>>
>> Brett
>

>
>...hmmm...
>
>I thought "1 mil" was the area equal to a circle whose
>diameter is .001 inch...
>not quite the same as the diameter in thousandths...

Well, here a chart that goes from mils to millimeters:

http://www.reade.com/Conversion/mils_to_%20mm.html

and say you pick 15 mils. Table says .381 mm. .381 mm/(25.4mm/inch) = .015". If there is something I am missing, please explain

Here's a screen shot from Line II running in VPC:

[photo not recovered: 403c111f6498245f.jpg]

The data input tabbed window is open, and in the background you can see the input and output data for a 64 oz. Trivial Pursuit at normal flying speed and STP.

You set the units under the View pull-down - metric or English (which, by the way, gets the same conversion from mils to mm as the table gives).

Under PARAMETERS is the "input data", which brings up the input window you see on the right. The input window is tabbed, and you need to go from tab to tab to enter the data. Line length and diameter is more-or-less self explanatory - but the line length is actually the handle to center of airplane distance, instead of the real line length. "Handle Radius angle" is your arm length, and the angle is the "whip angle". Negative numbers mean whipping, and positive numbers mean lagging. Just put it to 0 for stunt. Airplane data is pretty self-explanatory - windspeed in FPS, aircraft speed in FPS, weight is in Lbs, and line cover length is the distance from the center of the airplane to the leadout guide. The atmosphere data is also pretty self-explanatory.

Once you put it all in, you get many things, but the one I use the most is the "Tangent line angle" which is the tangent of the leadout angle from the CG - in this case, tan (.0317) = 1.815 degrees. It also gives the leadout offset, which is how far behind the CG the leadouts should be, in this case .95"

Brett,
Great reply. What is handle radius? My guess the distance from the center of your body to the center of your handle when flying? I figured out that wing cover is the inboard wing panel length from the centerline of the airplane. BTW I figured out my latest, the Harbinger and it came out to.... .95 inches too! Very cool program. I'll use the setting and work the trimming and resist moving the LO.

Thanks again,

>Brett,
>Great reply. What is handle radius? My guess the distance
>from the center of your body to the center of your handle
>when flying?

Right, I think so.

I figured out that wing cover is the inboard
>wing panel length from the centerline of the airplane. BTW
>I figured out my latest, the Harbinger and it came out
>to.... .95 inches too! Very cool program. I'll use the
>setting and work the trimming and resist moving the LO.

Most of our airplanes are awfully close to each other in terms of weight and speed, so that's not too surprising.