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ESM F7F Tigercat Build

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Old 07-09-2018, 04:23 PM
  #51  
ftjets
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Engine cowl mounts in place.


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Old 07-09-2018, 06:19 PM
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Default Tigercat wing center section

Looking great. I havenít started mine yet. Iíve noticed that my Nacelles have a gap weíre they mount or glue to the wing center section at the trailing edge. Did yours have that issue?
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Old 07-10-2018, 12:42 AM
  #53  
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Originally Posted by flyer1966 View Post
Looking great. I havenít started mine yet. Iíve noticed that my Nacelles have a gap weíre they mount or glue to the wing center section at the trailing edge. Did yours have that issue?
There were small gaps in mine that wouldn't have affected anything flight wise but looked ugly. That is one reason I wanted a mechanical bond. The screws allowed me to pull the pods in tight and eliminate most if not all of the gaps and ensure that the epoxy bond was good and tight. I didn't show it in the pictures but there are backing plates on all of the lightning hole inserts I used to mount the blind nuts. If you are interested in using that method, I would be happy to share some of those special parts or any of the parts I created. Hate to spend all that time designing them just to be used once.
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Old 07-10-2018, 11:58 AM
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Default Tigercat parts

Thank you very much. I would be interested in the parts for bolting the Nacelles on. My email is fosterp51@yahoo.com. Just let me know how much you want for the parts.
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Old 07-10-2018, 03:53 PM
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Originally Posted by flyer1966 View Post
Thank you very much. I would be interested in the parts for bolting the Nacelles on. My email is fosterp51@yahoo.com. Just let me know how much you want for the parts.
Not interested in making money on it. I'll just send the patterns I used and laser cut the parts in the morning. Just pay for shipping and i'll be happy. I'll try to add some instructions and additional pictures to explain how I did it in detail.
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Old 07-18-2018, 12:51 AM
  #56  
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Taking a short break to replace landing gear struts on my jet. Should be back on the build shortly.
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Old 07-30-2018, 03:58 PM
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New struts on the jet so i am back on the TC build. Got a few things accomplished. The mounting blocks for the back of the wing were already glued in place but the front mounts were not. After drilling for the mounting bolts (1/4") I laser cut mounting plates and installed blind nuts. I bolted the wing on with extra long bolts and brushed on epoxy to the mounts and the fiberglass saddle. Then i snugged the bolts and let it set. After that i brushed more epoxy and reinforced the joint with triangle stock. It isn't pretty but it is plenty strong.


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Old 07-30-2018, 04:03 PM
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Got the landing gear set up. Again, i laser cut spacers to drop the gear far enough for the wheels to clear the top of the nacelles. They were hitting the top of the nacelles when retracted. It took 5/8" worth of spacers to make the wheels clear.


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Old 07-30-2018, 04:10 PM
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Landing Gear all set up. Yes, i did notice the off set in the nose gear. Guess i will have to shim that out.

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Old 07-30-2018, 04:23 PM
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I have been building long enough to know that there are always set backs and issues that you just don't catch in the building process. It was my intention to keep the wing center section mounted and simply remove the wingtips for transport. It seemed like a good idea at the time. What i never realized is that after installing the retracts i could not get my hands deep enough into the nacelles to install/remove the forward mounting screws. I decided to leave the wingtips mounted and remove the wing assembly for transport. I intend to use the Futaba S.Bus setup so there will be a minimum of wires to connect. I will try to set up the main retracts within the wing assembly if possible to eliminate the air hose connection. I did drill holes in the front and rear mounting blocks to utilize alignment dowels so the wings will align properly when installed at the field. It was impossible to drill the wing mounting holes accurately enough to simply bolt them on and have them align properly. One thing i have noticed is that this thing is heavy. I did a preliminary balance check with just the Eflite 160 motors installed and it appears to be very nose heavy. I'm not sure i can place enough servos and accessories in the back to compensate. We will see.


Put it on the scale with only motors and landing gear mounted. She's at about 22 pounds already. I'm guessing she will be at 30 pounds after electronics and batteries. The manual lists the flying weight at 23.2 pounds. At some point i will remove the gear and motors to finish things up. I will weigh it again dry and see how how heavy it was from the factory. Should have done that already i guess.

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Old 08-18-2018, 09:33 PM
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Hi Guys,
I managed to get one of the last kits from VQ Warbirds. I also picked up Sierra retracts, wheels and brakes. I have yet t start the build, but plan on using twin cylinder 30cc gas engines... I was looking at the 19cc three cylinder radials, but I doubt they will have enough power for the model. Any inputs would be nice...
Soft Landings Always,
Bobby of Maui
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Old 08-20-2018, 03:56 AM
  #62  
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Hi Bob,
Welcome to the club. I hope you can extract some useful information here to help your build along.
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Old 08-20-2018, 11:40 AM
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Originally Posted by Bob Paris View Post
Hi Guys,
I managed to get one of the last kits from VQ Warbirds. I also picked up Sierra retracts, wheels and brakes. I have yet t start the build, but plan on using twin cylinder 30cc gas engines... I was looking at the 19cc three cylinder radials, but I doubt they will have enough power for the model. Any inputs would be nice...
Soft Landings Always,
Bobby of Maui
Who makes the 30cc twin? That will be an interesting install.
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Old 08-21-2018, 02:09 AM
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I have been held up a little due to that pesky work thing but have made some progress. I am working on attaching the control surfaces. I wanted to use the large Dubro pinned hinges with removable cotter pins but the gap is way too wide. I don't like using CA hinges on larger planes but I figured I would just add extra hinges. Getting them centered was a trick and some of the factory hinge cuts were not on center so I had to do a little fabricating. My standard hinge line cutter was not large enough so I made my own. It worked quite well.

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