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COX Flight Contest: What's Your Entry?
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Re: COX Flight Contest: What's Your Entry?
GUS THE I.A. wrote:Ooooo, one of those funny airfoils! Cool. How much does it weigh? Is the break, or step, in the airfoil critical, to make it work well? Mine would be purple! Just saying...
Yes it's called a KFm-4 airfoil, the step makes the airfoil. I'm not sure on weight, I'll have to ask Jeremy. The last one he built like this was electric and it screamed...
https://www.youtube.com/watch?v=b3aIhppXuH4&feature=share&list=UU6H3uxVW4UZ4DUYvk_IRKKw
Re: COX Flight Contest: What's Your Entry?
Here's mine. A Cox Katydid that's been cut down from a cabin high wing tricycle to a taildragger motor glider. Originally had a Norvel BigMig on it, but that's been replaced by a TD.049 with a throttle sleeve from Matt and a spring starter from Bernie. The TD is bolted to the BigMig tank mount, but is being fed from a one ounce tank in the fuse. The tank mount tends to foam up quite a bit. I'll probably replace the tank mount with a ply beam mount eventually.
The Disputed Mark
The Disputed Mark
batjac- Diamond Member
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Posts : 2338
Join date : 2013-05-22
Age : 61
Location : Broken Arrow, OK, USA
Re: COX Flight Contest: What's Your Entry?
Very nice, Travis. That should be a fun plane for the contest. Very good video. I noticed I hadn't subscribed to your channel, so I clicked on it this morning.WingingIt74 wrote:Yes it's called a KFm-4 airfoil, the step makes the airfoil. I'm not sure on weight, I'll have to ask Jeremy. The last one he built like this was electric and it screamed...
Batjak, you'll be a tough competitor with that big ol' Norvel tank.
Last edited by RknRusty on Thu Jun 06, 2013 8:11 am; edited 1 time in total
_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!
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...and never Ever think about how good you are at something...
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RknRusty- Rest In Peace
- Posts : 10869
Join date : 2011-08-10
Age : 68
Location : South Carolina, USA
Re: COX Flight Contest: What's Your Entry?
WingingIt74 wrote:Here is mine. PinchFlat built it specially for this contest. Although it has a Babe Bee... It looks to be begging for a TD.
Here is one of the engines we will try on it tonight, I also have a 5cc Babe Bee to try also. I may even try a TD, but I've never ran one yet.
Re: COX Flight Contest: What's Your Entry?
Seriously, you've never run a Tee Dee? If so, you're in for a treat. I never miss an opportunity to say, Once you go Tee Dee, you'll never go back.WingingIt74 wrote:...I may even try a TD, but I've never ran one yet.
_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
RknRusty- Rest In Peace
- Posts : 10869
Join date : 2011-08-10
Age : 68
Location : South Carolina, USA
Re: COX Flight Contest: What's Your Entry?
The first time I cranked mine on a test stand I had trouble because I was flooding it, and I had never flip started either. A spring helped, but they eat those pretty regularly, and now that I'm familiar with it, there is absolutely no need for a spring. They start much more easily than a reedy, especially a tanked Bee. And there is nothing about them that makes them finicky. It always acts the same every time you go fly. I usually test run my Bees before I go, because you never know how it might act.WingingIt74 wrote:No I haven't, but i have a few of them
_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
RknRusty- Rest In Peace
- Posts : 10869
Join date : 2011-08-10
Age : 68
Location : South Carolina, USA
Re: COX Flight Contest: What's Your Entry?
I secure the springs on mine with a small zip tie routed in front of the pressure tap and behind the Venturi.RknRusty wrote:A spring helped, but they eat those pretty regularly, and now that I'm familiar with it, there is absolutely no need for a spring.act.
Jim
JPvelo- Diamond Member
- Posts : 1972
Join date : 2011-12-02
Age : 56
Location : Colorado
Re: COX Flight Contest: What's Your Entry?
That's what I do with the Norvel springs to the beam. My last TD with a spring is on the Satan, so I'll do that.
_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
RknRusty- Rest In Peace
- Posts : 10869
Join date : 2011-08-10
Age : 68
Location : South Carolina, USA
Re: COX Flight Contest: What's Your Entry?
Shoot man that's to bad.
duke.johnson- Diamond Member
- Posts : 1734
Join date : 2012-11-05
Age : 52
Location : Rochester, Washington
Re: COX Flight Contest: What's Your Entry?
I think it will fly again. It is amazing what a bit of glue and skewers can do.
Pinchflat- Moderate Poster
- Posts : 12
Join date : 2013-03-22
Re: COX Flight Contest: What's Your Entry?
I feel your pain brother.
Jim
Jim
JPvelo- Diamond Member
- Posts : 1972
Join date : 2011-12-02
Age : 56
Location : Colorado
Re: COX Flight Contest: What's Your Entry?
Sorry Travis, that does stink. It should Epoxy back together just fine though.
I noticed that in every flight the engine was running really rich. Were you just testing things out or was the engine not co-operating?
Tough luck man.
Ron
I noticed that in every flight the engine was running really rich. Were you just testing things out or was the engine not co-operating?
Tough luck man.
Ron
Cribbs74- Moderator
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Posts : 11897
Join date : 2011-10-24
Age : 50
Location : Tuttle, OK
Re: COX Flight Contest: What's Your Entry?
Aw that's too bad. That's modeling... and re-modeling. I'm currently riding a streak of good luck that's beginning to worry me.
_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
RknRusty- Rest In Peace
- Posts : 10869
Join date : 2011-08-10
Age : 68
Location : South Carolina, USA
Re: COX Flight Contest: What's Your Entry?
Wow, bummer! That does not look like the best place to be flying, anyway. Do you see the houses over there? If that is all of your property, then I retract my statement about the area. It just looks too tight, and residential to me.
GUS THE I.A.- Gold Member
- Posts : 359
Join date : 2012-08-15
Location : Wichita, Kansas
duke.johnson- Diamond Member
- Posts : 1734
Join date : 2012-11-05
Age : 52
Location : Rochester, Washington
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