Another smart feature about having the retracts accepting wire is that the purchaser can install his retracts and use the stock wire legs. Maybe I should start complaining they're not making retracts for a PBY! That would be crazy. Scratch builders would would use nothing but scale looking gear and these electric gear are not speed adjustable so the real scale conscious won't use them anyway. There are a lot more buyers of 60 size ARF warbirds than the larger ones and especially the scratch builders. At 6+lbs I don't think I'll put struts on it either.
I know I get by just fine without any struts on my Kyosho war birds but on a old Kyosho Skyraider kit I just bought I would rather put in 85 degree electric retracts than put in mechanicals. Most do not want to spend the additional $100 for struts. People who buy the H9's or Kyosho's who do not want to deal with mechanicals will spend a little extra money for the electric retracts. There is a huge market there without the need for strut ready units. I believe their mission is to first make direct replacement retracts for H9 and other manufacturer's ARF's. I think a lot of people are missing Horizon's intentions here. You see, those two airplanes have dihedral but the gear retracts outward, whereas the P51 and P47s retract inward. If you have a Spitfire or Me109 model, you'd want 95 degree retracts (but won't find them). If you have a P51 or P47 model, you'd want 85degree retracts. If your model has no dihedral, you'd want to buy 90degree retracts. Since models don't always have the correct dihedral, the model gear mfg's choose to give us 85degree arcs, figuring the 5degrees will be lots closer matching most models dihedral than 90degrees movement would. So they move 90degrees minus the dihedral. The gear needs to be perpendicular with the ground when it's down, so gear that's parallel with the wing when it's up should only move enough and then stop perpendicular to the ground. The P51 and P47 have dihedral in the wings. It's the amount of movement in degrees the gear moves from fully up to fully down. What does that mean? Whats the difference between between the 90 and the 85? (besides one being 5 degrees more than the other!) Is it that the struts iin the 85 degree ones are ''bent in'' 5 degrees more in the locked position whereas the 90 degree ones are straight (90 degrees to the wing) in the down position ? įor instance in the first post John wrote :Ĩ5° main units for you P-51, P-47 guys out there'' I'm new to retracts and am somewhat cinfused as to what the various types ''in degrees'' mean. The mechanism might be a little light for a 10-12 pound airplane though, you'll want to make sure the gear lock down before you land. Overall they look pretty good for the money, I'm glad I got them. I might try to find a way to support the motor wires better before I use them. But it looks like it's there for insulation of the solder joint and not stress relief, so the wire might be prone to breaking there over time. Where the motor wires are attached they're potted with some RTV. I think this all means that you'll have to make sure your gear doesn't bind on anything and definitely make sure they're locked down before you land. Also, since the brass pin hits a limit switch, it doesn't let the pin seat all the way to the end of the W cutout. The jack screw is a little light too, looks to be the size of a 4-40 screw. I was surprised that the brass slider hits limit switches to shut off, so I'm wondering if that means it doesn't have a current limit shut off. The trunion looks typical size, but the brass slider pin looks to be a bit thinner than most retracts, but I didn't measure it. The side rails are machined out of 3/32 angle stock and look strong enough. The trunion is brass bushed with no wobble. The machining and workmanship look top notch.
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