I'm building the TopRC F9F Cougar
#52
Join Date: May 2014
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you may want to check out the kst brand servos. heli guys swear by them as a solid high torque perfect centering servo. i used them in a mini xcalibur and they were all the hv line so simple 2s battery too. in heli use they are best bang for the buck......
#53
Thread Starter
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Horsefeet, your post made me read my post previous to yours. Looks like I accidentally stated the weight for the torque of those Power HD servos. The servo's weight is 60g, the torque is around 17kg/cm. This is a whopping 236 oz/in, for around $15. The same spec servo in KST is quite a bit more money though. The power HD is not a "HV" servo though, so the conservative modeler might want to use a regulator. Instead though, I just use a LIFE battery which lowers the voltage enough to gain confidence.
#58
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Join Date: Oct 2002
Location: St. Catharines,
ON, CANADA
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The nose doors are included and they are mechanical. The nose retract open and closes the doors. Works very well. I know of 2 different retract controllers. One has the retract and brake control in one box and the other has separate retract and brake controllers. My cougar has the separate version.
#60
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there is a mechanical door closing mechanism, but I found it wasn’t very precise and it didn’t line up with the retract well. I threw it out and came up with my own design.
https://youtu.be/B6lSjtG-cL4
https://youtu.be/B6lSjtG-cL4
#62
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Hey Saillfish,
Your Cougar looks great. Clean install. I will be using a KingTech K-85 in my Cougar as well. I was debating building a little bigger fuel tank but would prefer to use the stock tank if I can make it work. It would be so much easier and avoid me having to cut the ducting to accommodate a larger tank. The K-85 is a little thirsty and just concerned about the stock tank being just a hair too small but don’t know. What kind of flight time do you think will you be shooting for? I imagine most of the time I will be flying at 50-60% throttle.
Your Cougar looks great. Clean install. I will be using a KingTech K-85 in my Cougar as well. I was debating building a little bigger fuel tank but would prefer to use the stock tank if I can make it work. It would be so much easier and avoid me having to cut the ducting to accommodate a larger tank. The K-85 is a little thirsty and just concerned about the stock tank being just a hair too small but don’t know. What kind of flight time do you think will you be shooting for? I imagine most of the time I will be flying at 50-60% throttle.
#63
My Feedback: (17)
Hey Saillfish,
Your Cougar looks great. Clean install. I will be using a KingTech K-85 in my Cougar as well. I was debating building a little bigger fuel tank but would prefer to use the stock tank if I can make it work. It would be so much easier and avoid me having to cut the ducting to accommodate a larger tank. The K-85 is a little thirsty and just concerned about the stock tank being just a hair too small but don’t know. What kind of flight time do you think will you be shooting for? I imagine most of the time I will be flying at 50-60% throttle.
Your Cougar looks great. Clean install. I will be using a KingTech K-85 in my Cougar as well. I was debating building a little bigger fuel tank but would prefer to use the stock tank if I can make it work. It would be so much easier and avoid me having to cut the ducting to accommodate a larger tank. The K-85 is a little thirsty and just concerned about the stock tank being just a hair too small but don’t know. What kind of flight time do you think will you be shooting for? I imagine most of the time I will be flying at 50-60% throttle.
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WI53072 (02-10-2022)
#69
My Feedback: (17)
One other thing on this aircraft. The flaps suck. They don't close completely. They are warped. Nothing can really be done with them to fix it. Just have to trim them in flight. Also with the wrapping they can't be deployed even. We shall see. The glue isn't very good either. I went in with hysol and went over everything I could reach. The plywood is typical Chinese crap. Why can't they add a little more to the cost and use quality plywood and hysol brand glue. Advertise it with those things and we will be totally good with it.
#70
My Feedback: (9)
Yes my son broke both of them over time. He has around 300 flights on his now. Really good flying plane. If you are building one new I would think some G10 hysoled on the backside of the gear plates would work well. Also where the wing attaches inside you can see a lightning hole in the wood. I used a dremel to remove the aircraft skin so you have some room for a hysol nozzle to fit in to repair the gear plates. When the wing is on it covers the small hole.
For your flap issue maybe try a heat gun and you should be able to straighten it.
For your flap issue maybe try a heat gun and you should be able to straighten it.
#71
My Feedback: (17)
Yes my son broke both of them over time. He has around 300 flights on his now. Really good flying plane. If you are building one new I would think some G10 hysoled on the backside of the gear plates would work well. Also where the wing attaches inside you can see a lightning hole in the wood. I used a dremel to remove the aircraft skin so you have some room for a hysol nozzle to fit in to repair the gear plates. When the wing is on it covers the small hole.
For your flap issue maybe try a heat gun and you should be able to straighten it.
For your flap issue maybe try a heat gun and you should be able to straighten it.
#72
My Feedback: (9)
My son and I at topgun with his cougar
#73
i set it up with flight modes and my son flies it so not sure if it has down elevator or not since he flies it not me. Next time we go flying ill check. He flew it for a long time with a k45 and it did great so their is really no need for a big engine in this plane. He now has a k60 in it and for scale flying its pretty much perfect. He was able to take home 2nd place at topgun in the young guns class with the cougar.
my son and i at topgun with his cougar
my son and i at topgun with his cougar
#75
My Feedback: (11)
I set it up with flight modes and my son flies it so not sure if it has down elevator or not since he flies it not me. Next time we go flying ill check. He flew it for a long time with a K45 and it did great so their is really no need for a big engine in this plane. He now has a K60 in it and for scale flying its pretty much perfect. He was able to take home 2nd place at topgun in the young guns class with the cougar.
My son and I at topgun with his cougar
My son and I at topgun with his cougar
"My kid is an honor student at Top Gun High"