My son and I were given as a gift a Hobbico Park Pilot RTF, even with
an extra set of wings and multiple extra props. I have absolutely no
experience with these airplanes or any type of remote control
models....total newbie, but my son and I were looking forward to the
potential for fun.
My son (6) and I enjoyed the little bit of set up required, and today
we took it for its maiden voyage, even though winds were a bit greater
than ideal (10 mph). Well, needless to say, we crashed after a nice
(but short) maiden voyage, and the propellor got jammed in the turf. I
was unaware that I should have immediately shut off the
throttle....perhaps it stayed like this for 3 minutes. We had to
replace the propellor, but upon making this repair, now the motor will
not work properly.
Following the "turf-jam," the symptoms of the motor problem are that
even with a fully charged battery, the motor won't stay on. The motor
comes on only with the red button on the side of the plane depressed,
and held depressed. As soon as I let up on the red button, the motor
shuts off. The throttle control still will modulate the motor speed;
however, the motor only runs as long as I have the red button
depressed. Also, the motor sounds as though its maximum RPM is a bit
lower than before.
My (totally uneducated) guess is that I damaged a component in the
receiver. Here are the specific components:
1) Hobbico RX-405 AM 4 channel receiver: Futaba R114H 72.670 MHz (it
reads "44" above the marking for 72.670 MHz). (The little piece that
pulls out of this box is labelled "Type 72-11 AM Rx" and also labelled
2) Ni-MH battery: 6 x AAA 650 mAh
3) Motor: GFK-180SH-2860
4) Radio: HObbico 3 Channel AM Radio Control System by Futaba 72.670
MHz (Came with the Park Pilot)
Here are my questions:
1) Do you think my "diagnosis is correct," and if not, what do you
think is wrong?
2)Is there a way to repair this unit, or does it need to be replaced?
3) My son and I are really bummed...what part should we order to get us
flying again? I searched the internet for this 4 channel receiver, but
there are so many specifics that one has to specify, that I'm afraid to
buy anything. "High" versus "low" "with crystal" versus "without
Thanks very much for your time and thought.
-Ken and Brian
- posted 16 years ago