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Our aircraft was designed with 655 sq inches of wing area while keeping the total weight to a 
minimum. Whether you want an aircraft precise enough to compete in IMAC or 3D until you’re 
airsick, the PAU Extra fits the bill. Its light weight gives you the stability in high-alpha to take it to 
the extremes of the flight envelope. If tumbling maneuvers are your thing, our Extra 300sp will 
deliver with picture perfect waterfalls and blistering tip spins that are not for the faint of heart. 

We believe you will find this to be one of the finest flying aircraft on the market.  Most modelers 
will find assembly of this aircraft simple and straightforward.  We recommend the builder follow 
the step-by-step instructions to achieve the best performance and to ensure nothing was over 
looked.  This manual also includes tip sections throughout that may help you in key areas during 
assembly.  Please familiarize yourself with this manual before assembly. 

 

This manual is broken down into ten chapters for simplicity:  

  

Chapter 1 

- Parts Inventory

  

Chapter 2 - 

Preparation for Assembly  

Chapter 3 - 

Landing Gear 

 

Chapter 4 – 

Motor and ESC Installation

  

Chapter 5 - 

Cowling installation

  

Chapter 6 - 

Rudder and Elevator Installation  

Chapter 7 –

 Wing Assembly 

Chapter 8 - 

Radio and Control Surface Setup  

Chapter 9 - 

Final Inspection and Pre-Flight 

 

Additional items needed to complete this aircraft, which are not included:  

  

 A motor and esc

, within the recommend range, and propeller  

 6 

channel computer radio and receiver recommended  

 Batteries 

 

 Two

 aileron servos rated at least at 70oz of torque  

 One 

elevator servos rated at least at 70oz of torque 

 One 

rudder servos rated at least at 70oz of torque  

 5 to 15

 minute epoxy  

Summary of Contents for Extra 300SP

Page 1: ...aft Unlimited 60 inch Extra 300SP The Extra is arguably one of the most renowned aerobatic aircraft ever produced Walter Extra who originally designed the Extra named his aircraft by the horsepower ra...

Page 2: ...rmance and to ensure nothing was over looked This manual also includes tip sections throughout that may help you in key areas during assembly Please familiarize yourself with this manual before assemb...

Page 3: ...izontal stabilizers 1 Rudder 1 Fiberglass Cowl 1 Pair of fiberglass wheel pants 1 Main landing gear 1 Pair of Light wheels 1 Tail wheel and tiller assembly 1 Canopy 1 Carbon fiber wing tube 4 pushrods...

Page 4: ...etting and adjust accordingly Higher temperatures will cause your covering to over shrink and distort Also use a sock over your iron to ensure a scratch free finish Place an to ensure task completion...

Page 5: ...rom becoming loose Insert wheel axel onto main gear on the back size use supplied washer and nut Only thread in the nut until wheel pant in slipped between the axel and main gear Once wheel pant is pr...

Page 6: ...acking the cuffs Chapter 4 Motor and ESC Installation Your firewall come pre drilled and ready to use with 4020 size motors We recommend the PAU 4020 540KV motor made by Scorpion along with the Castle...

Page 7: ...ng tab Slip cowl on under the pieces of paper using the spinner backplate align cowl to match spinner and have proper clearance Once satisfied with cowl placement drill a hole where the dot you previo...

Page 8: ...onto the provided CA hinges Glue hinges using thin CA and carefully dripping the glue on top of hinge on both sides Before gluing in the control horn make sure to properly sand the portion that goes i...

Page 9: ...ssembly before gluing the rudder Follow the same steps to install the rudder servo as the elevator servo Chapter 7 Wing Assembly Install ailerons using CA hinges Using thin CA carefully drip CA onto t...

Page 10: ...w rates for this aircraft are 20 degrees for ailerons with 0 to 20 expo 12 degrees for elevators with 0 to 20 expo 30 degrees for rudder with 0 to 20 expo The recommended high rates for this aircraft...

Page 11: ...nspect the airframe for any visible damage and loose covering that may have occurred during the build Inspect the main landing gear and tail wheel assembly Ensure all mounting hardware and collars are...

Page 12: ...ou set low rates for your maiden takeoff and enjoy This concludes your pre flight checks After your maiden flight repeat these steps to perform a post flight to ensure nothing has loosened It s always...

Page 13: ...We hope this aircraft offers you many years of enjoyment Thank you again for choosing PAU and look for exciting future products Additional products from PAU here https www flypau com...

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