hey guys I know this topic may sound weird but I am not able to read those planes I mean they say the wingspan is 24 inches but what is the length of the rudder? nothing is mentioned if there is any different way to read these planes they please tell me I will give you the link of the plans and also the photo of it.
Thanks and Regards
Akhil
 

The flitetest plans are in 100% scale. There will be full size plan and tiled plan.

Full size plan can be printed in shops who do A0, A1 size prints.
Also the same can be printed in multiple A4 size sheets using the option 'Poster' in Adobe Acrobat and paste together..
If only tiled plans are available take print in A4 size sheets and paste together.
Always, use 100% scaling.

Also, there is a inch and cm scale included in the pdf. If you want to measure and build use that scale as reference. But this is not going to be accurate.

so basically i need the title plans and paste all of them using the poster button? well is that the only way you guys do?

yes.
More or less the same way.

Usually their first page is scale measurement, print that page first , measure it , if its correct go for other pages.