Hangar-9 Alpha 40 ARF Trainer Manuel d'utilisateur télécharger pdf (Page 47)

47Hangar 9 Alpha 40 ARF Assembly Manual

Balancing Your Alpha ARF

In order for your Alpha 40 ARF to fly correctly, you will

need to check the balance of the plane with the fuel tank

empty. This is done by supporting the aircraft either using

your fingers or by using a balancing stand. Not checking the

balance can result in an aircraft that is difficult to fly, which

can lead to the possibility of crashing your model.

 Marking the Balance Point

The first step in balancing your Alpha 40 ARF is to mark the

location for the balance point. The ideal balance point for the

Alpha ARF is 2

–3 inches (70–76mm) back from the leading

edge against the fuselage. If your plane is only slightly out

of balance, try placing the balancing stand towards the nose

or tail by 1/8-inch (3mm) and recheck the balance. If it looks

good and sits level, then you’re good to go.

 Lifting the Model and Observations

Make sure the Alpha ARF is balanced using either your

fingers or a balancing stand. Place or lift the airplane so it is

supported at the marks made in the previous step. The plane

will rest level when balanced correctly. If not, weights must

be added to correct any balancing problems.

Balanced Correctly

Nose Heavy – Add Weight to Tail

Tail Heavy – Add Weight to Nose

Adding Weights to Correct the Balance

Due to manufacturing differences, it is possible that the Alpha

40 ARF may not be balanced properly. Weights can be added

to either the tail or the nose of your Alpha ARF if it does not

balance properly. Stick-on weights (Self Stick Weight, 6 oz

HAN3626) available at your local hobby store are the easiest

to use, and come in sizes that are easily placed on your plane.

Add just enough weight as necessary to balance your plane.

Once the weight has been added, make sure it is secure and

will not fall off in flight.

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Hangar-9 Alpha 40 ARF Trainer Manuel d'utilisateur Page 47