E-Flite P51B - Servoless, Light Weight, Push Rod Steerable Tail Retract - RC Groups
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This thread is privately moderated by ALL American, who may elect to delete unwanted replies.
Jun 30, 2011, 03:54 PM
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E-Flite P51B - Servoless, Light Weight, Push Rod Steerable Tail Retract

EFliteP51BServolessRetractableTailWheel (3 min 17 sec)

My design goals were light weight, ease of installation, it had to fit without modifiying the tail wheel bay opening and it had to steer via the rudder servo with no pull-pull cables.

The E Flite 10-15 nose retract is too big and weighs too much to put in the tail of this plane, so I modified one of the new tail wheel e-tracts that FMS uses in their 57" P51. The total weight of my retract assembly is 37 grams, including the wheel and mounting plate.

This tail retract unit comes stock in the FMS Version 6 and Airfield Version 3 57" Span P51D Mustangs. I had chosen it because I think it is the smallest and lightest servoless retract that is commercially available and it's already steerable. I highly modified the unit to fit into the existing opening and to steer via a pushrod linkage. I will update the blog and outline the process in the next week or so.


Not too shabby for $16.00!

The E-Flite 10-15 Steering Arm cost about half that. http://www.e-fliterc.com/Products/De...ProdID=EFLG113

I think the above listed assembly is a steerable version of this retract


1. I made a mounting plate that attaches to the bottom of the e-tract and screws into the P51B's existing tail retract bay without cutting.

2. I modified the e-tract to steer with a pushrod and to minimize the overall height so the assembly fits in the shallow opening.

3. I shortened the e-tract's strut by 3/16" so that the wheel retracts without hitting the wood support in the front of the retract bay.

The nylon control arm is a DuBro #559 EZ adjust control horn that I had in my parts bin. I reamed it to fit the aluminum tubing and to slide freely with no slop.


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Last edited by ALL American; Jul 01, 2011 at 05:06 PM.
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