First Look – Eurostar EV97

Written by Ron Grosser, a customer.

Unpacking & preparation

After receiving the Eurostar from Alex at ParkHobbies.com, I was pleased to find all parts neatly packed in sealed plastic bags and grouped for each section.

On this particular model, the aileron, elevator and rudder control surfaces were already glued into their respective positions which was a bonus, as the instructions showed this had to be done.

The surfaces were too stiff so I used a fine dremel cutting wheel held in my fingers and just dragged it through a few times on both sides of the hinges by hand. This removed the excess epoxy glue and allowed them to move freely.

The main wing is packaged as one piece not requiring two halves to be glued together like some other models which is a bonus.

Assembly

The engine mounting box is made from pre-cut ply, and care is needed before gluing together to see that it is assembled in the correct manner to give the motor a small amount of right and down thrust.

To fit the wing I deepened the hole at the front a small amount to allow the wing to sit down in place in the fuesalage and align the screw holes at the rear.

I like to test the ailerons and adjust by plugging into a spare receiver using a 4.8 volt flight battery for power coupled through an on off switch before fitting the wing. I once destroyed a small receiver by trying to plug the flight battery straight onto the battery pins on the receiver. The switch eliminates that risk.

Don’t forget to use the small pieces of plastic hose or fuel line for keepers on the aileron clevises to stop them from coming unclipped. (Further info on how to do this here).

When fitting the tailplane, I had to remove a small amount of balsa at the rear of the fuesalage to allow the elevator to move up and down freely. This and checking the rudder fit was all done along with measuring from the main wing to get the horizontal stabilizer square before glueing.

Before mounting the rudder and elevator servos, check the length of all pushrods. It may be better to mount the rudder servo the opposite way around to that shown in the instructions to better suit the supplied rudder and nose wheel pushrods. After these parts were all completed, I then mounted the motor mount to the firewall using 4’ of my own 3mm bolts, as there were already bling nuts in the firewall. This was a bit fiddly or the mount can be glued as per the instructions.

The canopy was trimmed and fitted with 4 screws and likewise the cowl after a test fit with the motor to make sure of correct clearance for prop and spinner.

First Flight

I used one of my Corona 2.4 gig receivers and mounted it under the canopy after cutting a small hole in the black film to bring the plugs through. By mounting the receiver in this position, I can see the red neon indicator to confirm the receiver is bound ok. After a final test and check of C of G using a 1300MA 3 cell lipo and motor and equipment as per Alex’s recommendation, she was ready for the maiden flight.

Unfortunately, several days passed by before suitable weather was available for the test flight.

Finally late one afternoon, the wind dropped a bit, so down to one of our local flying spots and away we went. After an easy take off, a couple of clicks of aileron and elevator trim had her flying straight and level, hands and feet off, no problems. I climbed up high, levelled out, eased the power back to off then kept checking back on the elevator for a stall. I was surprised to see the nose drop gently until she picked up speed then stalled again. No serious loss of height or tip stall like some of my other models. With the power back onto a bit over half throttle, she put on a good turn of speed and rolls or loops weren’t a problem.

The colour scheme of the Eurostar with stars and stripes looks great in the air and on the ground.

I was flying on dual rates with 70% +-35 expo which I usually use on my models of this size and she was precise,and easy to control. I  flicked the elevator up to 100% and chose to use this on landing which enabled me to hold her off better and make a perfect landing followed by a turn and taxi back to my feet.

All in all, the little Eurostar from Alex at  Parkhobbies.com was a pleasure to build and fly, and it certainly catches the eye at your local field.

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