User Manual

Installing HK Servoless Retracts HKD-312 in Parkzone P-47
He HK retracts will fit the PZ P-47 with some work with a Dremel Tool or other rotary cutter to modify the wing. I have
detailed the steps I went through in fitting these retracts to the model.
First thing you notice is the stock retract well is not deep enough for the HK retract and the mount needs to be notched
to allow for the front mounting screws.
This picture below shows the stock set up, which needs to be cut out.
When properly cut out it should look like this. I used the flat tipped router bits to cut out the well. The depth you need
for the retract is 23mm the grooves to clear the screws is 12mm. Don’t cut any deeper than you have to because the
foam is going to be thin over the top of the retract well, be careful not to cut through the wing.

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