|Sep 18, 2010, 02:46 PM|
P-47 Jug: The Landing Gear!
The PZ 15091/514 E-Tracts with the Aluminum 40-120 P-51 Struts.
The FMS E-Tracts in conjunction with the VQ FW190A oleo struts.
I'm initially going to try these new FMS E-Tracts, and see if they're as reliable as the DSR-46 Titans I have installed on the Mustang?
I am using them in conjunction with the Global VQ FW190A oleo struts. I have found that these FW190A's are the same strut as the AS01/P-51 strut, but with a much softer spring load which I find more suitable for the weight of these Foamies.
NOTE: Pay attention to the installation of the strut legs into the E-Tract rotating arm, as if it is pushed in to deep they will affect the arm when it rotates. Also, secure the leg with a screw so it won't travel into the retract thus damaging the jack-screw in case of a....not so stiller landing!
UP-DATE 10/02/2010: I received the HK/PZ E-Tracts yesterday, and decided to see what changes I could achieve to make them work with the P-47?
UP-DATE 11/30/2010: I have the 3" Robart Goodyear ribbed tires with the scale 8-Spoked wheels installed on the Jug. I had to grind off about 1/16" from the VQ strut to assure clearance against any potential tire rub.
UP-DATE 1/14/2011: I came up idea to eliminate the need to re-drill the VQ collar to accommodate the PZ 514 5mm trunnion hole. I made an aluminum sleeve to eliminate slop between the VQ 4mm pin and the PZ 514 5mm hole.
UP-DATE 2/13/2011: I have decided to take a different direction on both the E-Tracts and the struts on the JUG.
Without a great deal of modifications I was able to fit the PZ 514s in the wing sockets quite nicely. I made a couple of mounting plates out of 3/16" ply, and used the 2 outward attachment pins to anchor the plates in nice and tight while the epoxy cured. I cut a couple of shims to give them a bit of forward rake and that was it.
I've had a pair of these 40-120 Class Offset Oleo Struts for P51 Mustang from RC Skylite for quite some time now, and I thought the JUG was a perfect candidate for them. Although they are listed for the P-51, the wheel offset is not scale for the Mustang. But!....I got to thinking, the JUG retracts the LG with the wheels first in to the wheel wells! Sure enough, with the Robart Goodyears attached, they retracted nice a flush in the wells. The 5mm strut legs fit perfect in the 514s so everything was coming along nicely. I did have to make a 1/2" longer leg pin to compensate for the slightly shorter aluminum strut. I had to cut a bit more foam to clearance the A-arms. I then heated up the plastic strut skirts/covers to form more of a bend so they will clear the struts when compressed. That was pretty much it!
I have fitted both a set of Robart 2 3/4" and 3" Goodyears, and both fit great in the wells. The only thing I haven't figured out yet, is how I am going to make some brackets for the strut skirts/covers to attach to, but I'm working on it!
UP-DATE 3/06/2011: I have finished the Aluminum strut mod, and have the skirts now mounted and ready to go. To eliminate any chance of prop wash or wind from getting under the skirts, I took my heat gun and warmed the plastic skirts so I could bend them to conform to the wing contour. Now they fit nice, and any wind traveling over the top will keep them shut. The PZ 514s do a great job in retracting the LG and seals those skirts nice and tight.
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|Mar 08, 2011, 11:28 PM|
man those struts look killer!
hey, i tried a set of rc lander retracts on my CMP P-51....and they wont lift the weight of my vq struts and 3" robart tires.....what retacts are you using, and do they lift the weight of the strut and tire ok? link to retracts????
|Jun 07, 2011, 05:15 PM|
Awesome job! I'm looking to get some retracts and I am wondering if these are the ones you used:
If so I understand they don't come with struts and they take a 5mm shaft. Where did you get your struts?