KMP F-7F Tigercat
#2176
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In my attempt to keep this airplane as light as possible and therfore avoid having to put weight in the nose as others have advised I am contemplating mounting the ignition module for the DLE 20RAs on the side of the motor mounts. I have done so in the past with larger birds by using 1/2" foam and velcroed them on the engine box next to the firewall. On the F7F I would mount them in the same fashion however the only place where they will fit is as I described and the module will be approx. 2"-3" from the side of the muffler. Your thoughts.
#2178
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I had put my tigercat on the back burner for a while but just started back it will have 2 28 cc gas engine with elec. retracts and full cockpit kits hope to have some pics soon
#2180
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Hey guys, great thread and great pics and video. I picked up an orginal KMP all composite last year about this time. going to install Satio 200R3 3 cylinder radials. they are nitro but I am going to convert them to gas. Wondering if anyone reinforced the center section so the two tubes are mated together ?
thanks
Paul
thanks
Paul
#2181
Why not use the new saito FG33 ? Have Built one with 2 Laser160v. Maiden was a disaster as I checked the CG with the wheels down and without the outher wingpanels . Stupid me. Have added som 450gr of lead in the nose now and will try to test it again in this wekeend.
Last edited by TA152; 12-26-2013 at 07:03 AM.
#2183
Okay, nice engines anyway Here are my Tigercat :
http://www.youtube.com/watch?v=N3G5R...YNdMGVCcIZzAFw
http://www.youtube.com/watch?v=nIeuN...cfjQKyisx5bArw
http://www.youtube.com/watch?v=N3G5R...YNdMGVCcIZzAFw
http://www.youtube.com/watch?v=nIeuN...cfjQKyisx5bArw
Last edited by TA152; 12-26-2013 at 07:21 AM.
#2184
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Hi All:
I just received my Tigercat Friday. I have a couple of DLE-30s I'm going to try to stuff in it. The first thing I noticed was the wing tubes are really heavy; almost 18 ounces for the pair. Has anyone found a good fitting carbon fiber tube to replace it? I think I read way earlier in the thread about some people reinforcing the center section between the two wing tubes. Still recommended? I too am thinking about CF rods to work the elevators. Two servos that far aft take a lot of weight on the nose to compensate. Lots of good info here. Looking forward to getting started on my winter project.
Thanks,
I just received my Tigercat Friday. I have a couple of DLE-30s I'm going to try to stuff in it. The first thing I noticed was the wing tubes are really heavy; almost 18 ounces for the pair. Has anyone found a good fitting carbon fiber tube to replace it? I think I read way earlier in the thread about some people reinforcing the center section between the two wing tubes. Still recommended? I too am thinking about CF rods to work the elevators. Two servos that far aft take a lot of weight on the nose to compensate. Lots of good info here. Looking forward to getting started on my winter project.
Thanks,
#2185
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Nick, on my cat I joined the elevator halfs and just run one servo in the center section with a carbon rod that runs through a support in the center of the rod were it might flex. Also I glued the tubes in the wing permanent and cut flush with the outer nacelles, then I glued the tubes in the wings and these tubes stick out almost a foot and fit inside the center section tubes. This way the fuse with center wing attached is very easy to transport, no tubes sticking out as they show in the manual.
#2186
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Great idea on the wing tubes. What OD did you use on the outer panels? Did you stick with the aluminum tubes? Any issues with the strength of the middle section?
Thanks,
Thanks,
#2187
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My cat is the esm version, I did nothing to the center section and I do full power loops with it and Im running fuji 43s so if there was a problem with the center section it probably would of failed by now. But if you have the early all glass model I cant comment as to whether you need to reinforce the wing. When I started my cat I couldnt find a matching set of carbon tubes like the ones you can get today. So what I ended up doing is use the alum tubes in the center section and then I found a carbon tube close to that size to use in the outer wing and wrapped it in 64th ply to fit into the alum tube. I dont recommend doing this for sure, with the carbon tube sets that are now available. I also added 32nd ply to the trailing edge of the horizontal stab, ailerons and flaps to seal the hinge gap, filled in all the lighting holes and glassed the entire plane so I could repaint it. Not sure how much work your wanting to put into it but I pretty much changed everything on it. I also cut the firewall off and installed another about a inch back this puts the cowling against the wing like they are supposed to be. If you need any pics of something just let me know.
Tim
Tim
#2188
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Nick!
I felt bad that I didn't tell you yesterday when you asked about the retracts that you should check this forum (and the one on RC Groups), but I guess you do. I had a thought--I don't live too far from you (in Plano) so you can come over and see what I've done with the Tigercat so far, the retracts, and anything else. I didn't reinforce the center part either, but I haven't flown it yet... Plus--you will be able to see the big F-18 again...
Yoram.
I felt bad that I didn't tell you yesterday when you asked about the retracts that you should check this forum (and the one on RC Groups), but I guess you do. I had a thought--I don't live too far from you (in Plano) so you can come over and see what I've done with the Tigercat so far, the retracts, and anything else. I didn't reinforce the center part either, but I haven't flown it yet... Plus--you will be able to see the big F-18 again...
Yoram.
#2189
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Thanks Tim. I just finished a big Meister P-47, so I don't want another year-long project. Just enough to get me through the cold months!!
Yoram, I'd like to stop by sometime to see. I'll PM you to see when would work out.
Thanks all,
Yoram, I'd like to stop by sometime to see. I'll PM you to see when would work out.
Thanks all,
#2190
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I've been going through the entire thread again, but did not see that anyone else had this problem: The fit between the nacelles and the middle wing is angled, with a large gap at the trailing edge of the wing. There is a 1/8" gap on the port side and a 3/32" gap on stbd. The plane is brand new from ARF Pros and it's the built up wing. Anyone experienced this??
Thanks,
Thanks,
#2192
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I believe we had those issues with mine. Turned out that there was either excess glue around the wing tube/rib area or that the rib was bowed slightly. Seems we just sanded the ribs of the wing panel/center section flat and all was well. It sure doesn't affect things...
I've been going through the entire thread again, but did not see that anyone else had this problem: The fit between the nacelles and the middle wing is angled, with a large gap at the trailing edge of the wing. There is a 1/8" gap on the port side and a 3/32" gap on stbd. The plane is brand new from ARF Pros and it's the built up wing. Anyone experienced this??
Thanks,
Thanks,
#2193
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I too thought about sanding the surfaces to mate, but that's removing a lot of meat. The end rib of the center section is only about 1/8th". Not sure how thick the fiberglass is on the nacelle. I don't mind tweaking things a bit on ARFs, but this is off by too much. It would be tough to remove that much material and still end up with flat surfaces to mate.
Thanks,
Thanks,
#2194
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I have a ESM Tigercat I purchased about a year ago. I haven't even started to build it yet because I realized how much it's going to cost to finish it. I would like to go with 2 four strokes but will probably wind up using gas. Does anybody know if 2 O.S. 95v's would be sufficient or do I need to go bigger? If bigger is the case then it's looking like gas would be the way to go.
#2195
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I have a ESM Tigercat I purchased about a year ago. I haven't even started to build it yet because I realized how much it's going to cost to finish it. I would like to go with 2 four strokes but will probably wind up using gas. Does anybody know if 2 O.S. 95v's would be sufficient or do I need to go bigger? If bigger is the case then it's looking like gas would be the way to go.
Mike
http://www.rcuniverse.com/forum/twin...gercat-32.html
#2196
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I have had a pilot on back order from TBM for months - no joy, so would someone please advise the height and width of the pilot you used so I can try to source one of the proper size elsewhere? Thank you.
Last edited by Whiskey Bravo; 01-09-2014 at 01:29 PM.
#2198
OS GF40's would be over kill and Saito FG 30 would be fine. but you will find that the overall length from firewall to drive hub is quite long.
I am building TigerCat #3, and I am putting two OS 200's which is way over kill but I purchased the fairly cheap. I was going to go with OS 155's but found better deal on 200's. I should have it ready to roll by March I hope.
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Tigercat #3? What happened to #1 and 2? I was looking at the OS 155 first but am trying to get away from glow. I was looking for a pair of 4 stroke gas engines that would work well in this plane. The instructions call out 135mm from FW to drive hub. I was even thinking the OS 120 would be ok. I still need the retracts so I'm far from completing. Maybe end of summer or next year.
Last edited by rlinus; 01-16-2014 at 12:27 PM.
#2200
The first two had engine failures and my thumbs didn't react fast enough. This one will have a Gyro on rudder. I would highly recommend Sierra retracts. If you read the thread you will find out the Chinese ones can have issues. You wont find anyone complaining about the Sierra's. I didn't want to do glow either but this model is not worth putting a ton of money in. My ScaleWings F7F will have 2 Saito FG 84's in it.