Spring Air Retracts for Jets - Good/Bad?
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Spring Air Retracts for Jets - Good/Bad?
Hi Folks,
I've never used SpringAirs, are you folks happy with them? I've used Rhom, B&D, MK, BVM, etc, but no Spring Airs... I'm looking for options for gear to be fitted into a Topcat. The model is designed for them (HD700?), just wondering if there are other options. I would like to use shock struts, but I haven't decided whether to use BVM, Robart, or TopGun Knee struts. I'm guessing the model weight might be 17 pounds or so (haven't started kit yet...)
I usually fly off of pavement. Don't want to have to rebend struts and frames all the time... Thanks for your inputs!
I've never used SpringAirs, are you folks happy with them? I've used Rhom, B&D, MK, BVM, etc, but no Spring Airs... I'm looking for options for gear to be fitted into a Topcat. The model is designed for them (HD700?), just wondering if there are other options. I would like to use shock struts, but I haven't decided whether to use BVM, Robart, or TopGun Knee struts. I'm guessing the model weight might be 17 pounds or so (haven't started kit yet...)
I usually fly off of pavement. Don't want to have to rebend struts and frames all the time... Thanks for your inputs!
#2
My Feedback: (57)
They're fine
Ron, I have the 700's with TG knee struts and my plane is right at 19 lbs. dry. They will be fine as long as your landings are not too hard. IMOH, 19lbs. may be about all I would want to put on them.
The thing I have found with S/A is that once the frame gets bent once and you bend it back, they're weak from that point on. All in all, I'm fairly happy with mine. E-mail me off list for more info.
George
The thing I have found with S/A is that once the frame gets bent once and you bend it back, they're weak from that point on. All in all, I'm fairly happy with mine. E-mail me off list for more info.
George
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Spring Air Retracts for Jets - Good/Bad?
Get a pair of TGA's reinforcements for the Springairs. Steve made them for the Topcat and they eliminate the bending frame problem of the Springairs. I have a set on my Topcat and they work as advertised.
Terry
Terry
#5
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Springair retracts
I've used Springairs in Regal Eagles, Miller F-4s, a Miller T-38 and even used the 1/4 scale gear in a 1/5 scale P-39. IMOO they are a little more rugged than B&D and Rhom air, but I haven't used either of these lately, they may have improved. The only thing I don't like about them is that if you want to use struts, like Robarts, the nose strut wiill have to be installed on a 3/16 piece of music wire installed into the retract pivot block. I believe their 700 series retracts will accept struts directly into the mains. I have Springairs in my F-16 which I sometimes fly off grass and they have held up OK.
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Spring Air Retracts for Jets - Good/Bad?
Ron,
I also HAD a set of 700's in my kangaroo and just as George states, the frames bend on hard landings and once bent the are weak. Made my own stiffeners (copies of TG's) and although they helped I think my frames were already too weak. I love spring air gear but on the heavier (18# and up) planes I would go with another brand. They do work great on my TG F15!
Todd
I also HAD a set of 700's in my kangaroo and just as George states, the frames bend on hard landings and once bent the are weak. Made my own stiffeners (copies of TG's) and although they helped I think my frames were already too weak. I love spring air gear but on the heavier (18# and up) planes I would go with another brand. They do work great on my TG F15!
Todd
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Spring Airs
grbaker et al.
400, 500, 700 and 800 series retracts are designed to accept Robart Oleo struts directly without intermediate wires. You can also order wire main gear with a strut nose gear and vice versa.
I will have to check on the Spring Air retracts being spec'd by Top Gun. I will and get back to this posting with an answer.
In the meantime happy flying.
Ed
400, 500, 700 and 800 series retracts are designed to accept Robart Oleo struts directly without intermediate wires. You can also order wire main gear with a strut nose gear and vice versa.
I will have to check on the Spring Air retracts being spec'd by Top Gun. I will and get back to this posting with an answer.
In the meantime happy flying.
Ed