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Speed,Combat,Scale,Racing => Carrier => Topic started by: david smith on February 01, 2011, 12:09:51 PM
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I thought I would share some of my projects for this year. First is a Brodak Tigercat that is pretty much stock except for a couple of carbon rods in the wing and a slider. It has a couple of Novarossi's for power so hopfully it will be pretty quick.
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Second is a Seafire made out of a Great Planes Spitfire. This one I have actually had for a while but I have updated some things. I got a new engine an OS 61 RF with a pump. And after I saw Bill's new slider I figured I would try something like it.
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The slider
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Cool, I like the Tigercat. Thanks for the pics! y1
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Looking good Dave!! Hopefully i will be there when you fire them up!! #^
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Dave,
I have both the GP Spitfire and P-51. The p-51 was converted to carrier, and the spitfire to fun scale. The thing to watch out for is that they get nose heavy with a big glow engine up front. I use a ST.46 in the carrier p-51 and had to put in a ton of tail weight. For the Spit I used a ST 34 which is a lot lighter and easier to trim.
Very nice Tigercat, makes me want to build one.
john
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Hi David,
Did I meet you at Huntersville?
Thanks
Bill
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John
I found out the balance issue real quick. This plane was actually put together about 3 years ago with a Rossi 40 and with that it was super nose heavy. I cut a hole in the back and started throwing the lead to it, I can't remember how much I had in it but it was quite a bit. I decided to make it a class 2 after I crashed my guardian at Sig in 09 and put my OS 61 fx on it. The first flight it blew the stab and elevator off of it so I decided to kill 2 birds with one stone and I built the stab and rudder out of 1/8 ply and then it only needed .75 oz of tail weight. I still never could get a very good low out of it but I have learned some more about bellcrank placement and slider location so I decided to update it and see what it does.
Bill
You may have met me in huntersville. I run carrier in the fall. This last Oct I had a white guardian profile and a yellow mo 1. I also flew a black white green and blue Sig ultimate in stunt.
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I've thought MANY times about building a Brodak Tigercat for a small sport/stunt model. In your photos here it looks like it's actually got a pretty thick wing. Built stock out of the box, is the bellcrank mounted inside or outside the wing?
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Dave, you have been a busy young man. I see you were smart in putting the Tigercat controls on the exterior. I followed the Brodak plans with Fox .15's for power. Also had the mufflers on them. Had reasonable high speed. But, had to remove the mufflers to get low speed. Last flight JJ flew it and proceeded to destroy the lines doing touch and goes. May build another one and try to make it lighter. How has yours come out weight wise? Hopefully I can get more carrier flying done this year. Also hope to see you too. Tell your Mother the old DOC says hi. H^^
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The wing is thicker than I thought it would be. When I build another one I will make the wing thinner and probably a thinner fuse. I haven't weighed everything together yet but I weighed all the parts before I glued it all together and I think it was just under 3 lbs a little heavier than usual for me but it will still be lighter than my profile guardian. Which before the last contest it weighed in at 3 1/2 lbs. The biggest issue I can see now is going to be balence. As it sits it balances right on the very front of the leading edge. And there aren't any tanks on it yet. I think I will go ahead and make the tail out of 1/8 ply to help it out.
The plans show the bellcrank in the wing. I put it outside for better access and to be able to put a slider closer to the fuse to get more yaw out.
This I think is the end of the white guardian. The inboard wing has been broke off 3 times and the outboard has been broke off once and the tail section has bee broke twice so I think its time to retire it.
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Hi David,
I thought so. I met you at one of the meets after all the Carrier flying was over and you were there "cleaning up".
Hope to see you in the Spring, and quite possibly I WILL have a Carrier plane! (I now have all the equipment, Robert's 3 line, old stuff! and a Dumas Crusader)
Who was flying the 3 line autogyro in October, do you know?
Bill Little
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The autogyro was me. Dan Banjock was going to try to do loops around me with his bi slob but it was just too windy. I'm not planning on being there in the spring but Everett Shoemaker will be running carrier and right now I think there will be a couple others flying as well.
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The autogyro was me. Dan Banjock was going to try to do loops around me with his bi slob but it was just too windy. I'm not planning on being there in the spring but Everett Shoemaker will be running carrier and right now I think there will be a couple others flying as well.
OK, David. I was up there with Dan, too. I had the big knee brace on. I have been going to Huntersville since the site opened basically. I'm just far enough away (100 hard miles of driving) to not make frequent visits. ;D
I have know Dan for many years now, and it is true: If anyone is going to have fun, it's Danny!
Bill
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This I think is the end of the white guardian. The inboard wing has been broke off 3 times and the outboard has been broke off once and the tail section has bee broke twice so I think its time to retire it.
Give it to Garf, he can build another Fronkensteen! :##
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I need some help. I need a drawing or just an explanation will work of where to run the tubing for a chicken hopper tank. I am kind of stuck on the tigercat until I get tanks made. Thanks for the help.
David
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Dave,
Here is Bill Calkin's design
John V
P.S. It works very well
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Thanks John that helps a bunch.
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We used to make chicken hoppers that fit on the same side of the fuselage. Cut a chunk out of the big Perfect wedge tank and cut the back (side that would go against the fuselage) off a small Perfect wedge tank. Removed the fuel feed from the big one and used the feed from the small one that is "piggy backed" onto the large one. Bill's tank probably gives more fuel capacity. ???
Big Bear
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The reason for putting the main tank on the inboard side is because there isn't room for it between the engine and the leading edge on many designs. Looks like on the T-Cat, there is almost no room at all unless the tank were mounted very low, beneath the wing. A side benefit is that if you use flexible tubing to join the tanks, you can shim the hopper tank in and out to fine tune the high speed mixture. This works better if the hopper tank is kept small.
The drawing of Bill Calkins' tank design shows the vent to the main tank going to the upper/inboard corner. It is important that that tank vent not be too low or the engine can actually starve before you get off the deck.
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Any progress on the Tigercat?
This post finally put me over the edge by getting a good look at the design. I had considered the Tigercat kit countless times. My kit arrived from Sam's Stuff by FedEx yesterday. ;D
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I haven't had much time to work on any airplane stuff lately. But I have the tanks started and really all that is left is the hook and slider release then I can start the paint process. I'm hoping that work will slow down next week so I can get back to building.
David
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I just posted this here in the Open Forum...
http://stunthanger.com/smf/index.php?topic=20864.0
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Finally I have an update. It is painted. Hopefully I can get it together and test it on Sunday. I will post another pic of it assembled tomorrow morning.
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Aaaaah! Fire Bomber scheme!!!??? That's what I was thinking of doing with mine. ;D HB~> ;D
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Not a fire bomber, I'm going off of a suggestion Mike Anderson gave me for a Guardian there were some Hellcats that were painted orange. Mine is probably a little brighter but its orange so it will work.
The other pictures are of a Sea Wolf that I decided to put back together and update for my brother to fly this year.
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Okay, I'll let it slide this time David. :## ;D
I think the orange Hellcats were some kind of drones.
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Finally it is done enough to test. Actually I need to run the engines first. All it needs is decals. Final weight is high at 3 lb 13.5 oz.
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WHOAH, that's heavy. I know it's a twin but where did all the other weight come from?
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It weighed 19oz before paint and I gained 8.5 oz with the finish and there are parts that are suppose to be balsa and I made them out of ply to help with the balance. These engines are almost twice as heavy as normal 15s plus bigger tanks. I was worried after paint just by holding it that it was going to be too heavy but it is under 4 lbs so I'm happy. One other possibility is that I'm not the best builder so there are probably things in the build that could be done to help.
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I just did some figuring and there is 34 oz in hardware on it.
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Holy cow.
Whenever I get going on mine I'll be doing it as a sport/stunt model with a pair of LA.15's and tongue mufflers. No throttles or other extra gizmos. It will be interesting to see how the weight comes out.
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I see you borrowed the red nose wheel from Bob's Fury. Man, that thing gets around! 8)
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Pete, if you like I could send you some red wheels of your very own...
Bill
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DUDE!!!!! That is a great looking Tiger Cat, the Orange looks really good. That's a mean looking setup from nose to tail.
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Well lines are made and engines have been run. I think I'm ready to test. I need to get at least a couple of flights before Polk City. I think it will be able to get off the deck these engines sound sweet and seem to pull it pretty good. I did have to cut about a one inch square hole in the top of the outboard wing to fix some throttle linkage problems but everything seems to be working good now. I will try to get some pics in flight and maybe even a video of it. Thursday is looking like some good test weather.
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Speaking of Polk City - if anyone may be interested there is a flyer in the "Events" section:
(Polk City is just outside of Des Moines, for the out-of-towners who may be wondering)
Announcement:
http://stunthanger.com/smf/index.php?topic=20990.0
Flyer:
http://stunthanger.com/smf/index.php?action=dlattach;topic=20990.0;attach=79650
Note that the dates (May 7-8) at the top of the flyer are correct - the daily event schedule still
shows the May 1st and May 2nd dates from last year's flyer (just consider it a "typo").
We will have CL1-2 combined (% of record)
Profile
.15 profile
NCS Sport (% of record combined)
This is basically Sportsman, Skyray and Nostalgia combined - % of
"record" (last year's best top-20 score for the event)
You may enter both a Class 1 and a Class 2 in 1-2 combined
You may enter any combination of 'other' in NCS Sport that you have time to get a flight with -
We have Carrier scheduled for Saturday the 7th, but in the past we have put the events off until Sunday (by unanimous vote of the entrants) due crappy weather on Saturday and an improved outlook for Sunday. In other words, we would welcome your attendance and will do whatever the flyers wish to do to ensure that we get in a lot of flights.
Oh, yeah, we will also judge and mail in flights for Joe's Postal contest if anyone has a desire to start getting flights in for that.