Enlarging Yard Ace Plans

Yard Ace electric powered RC model airplane on a fly by

Yard Ace electric powered RC model airplane on a fly by

Yard Ace three channel RC plane front view

Yard Ace three channel RC plane front view

I took the first step on my next aircraft modeling project, making a smaller size version of the Yard Ace.

The Yard Ace is one of my earlier radio control model airplane designs. The Yard Ace uses a simple layout and is easy to build.  The model makes for a great first time plans build modeling project.  Many site visitors have made their own versions of the Yard Ace, to include such adaptations as all-foam construction.

I decided to make a version of the Yard Ace that will be around 75% smaller than the original design. The idea is to build to a size that can use the ParkZone line of ultra-micro radio control electronics and motor.

FedEx plans scanner and enlarger

FedEx plans scanner and enlarger

I really like the ParkZone electronics brick that includes within one unit two servos, a receiver and an electronic speed control. Several of my designs, such as the Fokker Spin and a Guillows conversion have successfully used the ParkZone hardware.

From experience I know a 28 inch wingspan is about the right model size for the thrust put out by the system’s electric motor. I figured out the appropriate enlargement conversion factors to the plans as printed out on my computer’s 8.5” by 11” printer (Yard Ace plans are available here).

8.5" by 11" print out of Yard Ace plans next to enlarged version

8.5″ by 11″ print out of Yard Ace plans next to enlarged version

The next step is to enlarge the plans to produce a full size version for construction of the model.

For this I checked with a nearby FedEx Office store. They have a wide format scanner that will scan in the paper print out of the plan and enlarge to a percentage that you type in.  It really could not be much easier.  The paper roll on this printer was 36 inches wide, so no problem with this smaller size enlargement.

As you can see from the photo, the enlarged plan came out just fine. I am still quite busy with my August United Express flying schedule.  Hope to start building this new version of the Yard Ace during the first week of September!