What's wrong with the tables in the flight manual?

Check out the Takeoff Performance Computer at Sporty's part
no. 2091A $22.95, page 35
www.sportys.com
http://www.sportys.com/acb/showdetl....roduct_id=1199





--
James H. Macklin
ATP,CFI,A&P

--
The people think the Constitution protects their rights;
But government sees it as an obstacle to be overcome.
some support
http://www.usdoj.gov/olc/secondamendment2.htm
See http://www.fija.org/ more about your rights and duties.


"Frode Berg" wrote in message
...
| Hi!
|
| I fly a Piper Arrow 180 hp from 1968
|
| Anyone have a spreadsheet or programme to calculate
takeoff and landing
| distance letting you input weights, pressure alt,
temperature?
|
| Frode
|
|