Yes.

What you do need to realize is that the radio is a 3 channel AM radio. For its intended use (Getting someone into RC flying at an inexpensive price) it is fine. For many years RC planes used 27 mhx AM radios, and they still do. The reason many people changed to FM is that there is less interference from outside sources.

The servos will work with either AM or FM radios. Additional AM receivers are available (and USUALLY substantially less than FM ), however, you will probably need to get them online.

The larger problem will be if you have an investment in AM equipment and want a transmitter with 4 channels or more. I am not aware of any AM transmitters 4 channels or more. There may be several available, but I am not aware of them.

The majority of your RTF (Ready To Fly ) electric planes are going to have 3 channel AM radios. My suggestion would be to have your brother use the radio that comes with a RTF. Then after he learns how to fly, if he is really interested in the hobby, let him purchase one of the many 4 channel (or more ) FM radio sets. Many of the 4 channel radio sets can be purchased for about $150.00 or less.