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Bob Cat Copy Falcon 120 Jet

Old 03-15-2010, 02:19 PM
  #3326
madfreestyler
 
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Default RE: Bob Cat Copy Falcon 120 Jet

Hey Chaps,

Anyone else using the digitech ready built u/c set. I was wondering if you had to modify the mains bay to accomodate as mine seem to be short. Is this the norm or have i got the wrong ones?
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Old 03-15-2010, 04:43 PM
  #3327
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Default RE: Bob Cat Copy Falcon 120 Jet

No you have the right ones, they are shorter than the pusher prop set up as the excess length of leg is not needed to clear the prop, as you are in the UK go to Sainsburys and buy a small Steak and Kidney pudding the dish it comes in is the right size to make a wheel well, bonus is that Epoxy does not stick to it very well so it is removable and they also make a good mixing pot, just let the epoxy set and flex the pot and out it pops, if you go back on the thread you will see how I did it.

Mike
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Old 03-17-2010, 01:51 AM
  #3328
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Default RE: Bob Cat Copy Falcon 120 Jet

Today was an absolute beautiful spring like day so I just had to get my Jet in the air. Ihad one camera mounted in the belly of the plane and another strapped to my forehead. I cut together a quick edit and posted it here: http://www.vimeo.com/10226417 So much fun! This was my first flight with onboard video. Great to see from the plane's perspective. This was also my first flight with my new JetCat P-80 SE (replacing the P-60 SE). I am totally thrilled with this new engine. 22 lbs of thrust is just perfect for my build and hardly drinks any more fuel.

If you want more details on my plane I posted a build .pdf earlier in this thread: http://www.rcuniverse.com/forum/m_59...tm.htm#9287830

Happy flying!

Christian

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Old 03-17-2010, 09:38 AM
  #3329
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Default RE: Bob Cat Copy Falcon 120 Jet

Wow! The on-board video was EXCELLENT quality!!! What camera was used, Christian????
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Old 03-17-2010, 12:56 PM
  #3330
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Default RE: Bob Cat Copy Falcon 120 Jet

Thanks. The onboard camera is a SONY MHS-PM1. I got mine last year from newegg: http://www.newegg.com/Product/Produc...2E16830179222R.Sonynow has a newer version with image stabilization: http://www.newegg.com/Product/Produc...82E16830179265. They are lightweight, record full 1080P, and most importantly have a rotating lens!

Christian
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Old 03-24-2010, 02:38 AM
  #3331
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Default RE: Bob Cat Copy Falcon 120 Jet

A bit off topic, but after flying my Falcon the other day, I decided to increase the thrust slightly on my PST600, while back at my home. That's when the trouble started! Here's a link to that thread and how I resolved it. Never know, but might help somebody else with engine problems.

http://www.rcuniverse.com/forum/m_9577676/tm.htm
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Old 03-26-2010, 02:17 PM
  #3332
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Default RE: Bob Cat Copy Falcon 120 Jet

hey guys where is the best place to get a carbon spar tube here in the states for this plane? thanks
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Old 03-26-2010, 02:38 PM
  #3333
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Default RE: Bob Cat Copy Falcon 120 Jet

http://rcfoam.com/cart.php?target=pr...category_id=94
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Old 04-02-2010, 02:46 AM
  #3334
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Default RE: Bob Cat Copy Falcon 120 Jet

Ok guys I'm still making progress with my Falcon120. I will post some pic's on the internal layout soon, but i have just busted out the nose gear frames and looking at some different options for in the installation of the nose gear.

Anyone got any pic's of what they did with their setup? I'm trying hard to not have the nose wheel hanging down in the breeze. Mine is seemingly coming out fairly tail heavy so i'm happy to put some meat in there to support the nose retract.

Thanks

dave
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Old 04-02-2010, 03:16 AM
  #3335
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Default RE: Bob Cat Copy Falcon 120 Jet

Dave

this is how I did my falcon and it did add nose weight!
If you look further down the page you will see the woodwork which supports the JetA1 nose leg
[link]http://www.rcuniverse.com/forum/m_5913492/anchors_9380206/mpage_125/key_/anchor/tm.htm#9380206[/link]

Alan
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Old 04-02-2010, 10:04 AM
  #3336
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Default RE: Bob Cat Copy Falcon 120 Jet

Do you have a firewall mounted or rail mounted nose gear?

See post #545 for how I did my rail mounted nose gear.
http://www.rcuniverse.com/forum/m_59...22/key_/tm.htm

Joe
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Old 04-04-2010, 08:34 AM
  #3337
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Default RE: Bob Cat Copy Falcon 120 Jet

Thanks for the pix guys,

I based my solution loosely on fireblade's effort, and i will box in the nose gear as he has done, I've just Hysol'd another frame in there so i'll let that cure overnight.

My retract is a rail mount design, but i have bulkhead mounted it!! The reason for this is that if i mounted it on rails then I would have had to really recess it into the airframe to make sure the nose wheel didn't stick out. with the way it is setup now, it fit's in really well, and i haven't changed the overal length of the strut either so all good. I will make a hatch forward of this bulkhead to get the li-po packs as forward as i can for CoG reasons.

Thanks

dave

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Old 04-04-2010, 08:58 AM
  #3338
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Default RE: Bob Cat Copy Falcon 120 Jet

Interesting approach to mounting a nose gear.

Quote:
I will make a hatch forward of this bulkhead to get the li-po packs as forward as i can for CoG reasons.
Don't bother. Even with a turbine mounted in the back these planes come out quite nose heavy. Most end up putting the batteries in the middle or rear of the fuse to balance it. Of course that is somewhat dependent on which engine you are using and the weight and placement of your accessories. I've built two of them and there are a number of Falcon 120's in the area. Except for maybe an airtank none of them have anything in the nose. When building shift as much weight as possible rearward.

Joe
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Old 04-04-2010, 03:37 PM
  #3339
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Default RE: Bob Cat Copy Falcon 120 Jet

Joeflyer, my first Falcon, needed my batteries as far forward as poss, to get the balance right. My home made engine is heavy, although the pivot arm is not massive.
My later Falcon did not need any weight at the front.
I suppose better to lay everything in loose and see how your install comes out, cheers tim
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Old 04-04-2010, 04:04 PM
  #3340
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Default RE: Bob Cat Copy Falcon 120 Jet

My falcon ended up tail heavy. I have a K80e on it, not a light turbine. I also did a heavy stab only one servo adaptation. I had to fit all 3 batteries around the nose gear and added more 90 grams of plumb in the nose to get 330cm CG. If I would build another falcon, I would leave all turbine accessories and batteries to be installed at the end of the work to try to get nearer to the right CG.

I think it mainly depends on the turbine weight as the engine is placed behind the CG.

Ricardo
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Old 04-04-2010, 07:32 PM
  #3341
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Default RE: Bob Cat Copy Falcon 120 Jet

Of course you guys are right, it depends mainly on the weight of the turbine. I have no idea what turbine ticketec is using. The best advise for him is to not cut out a forward hatch before knowing weather or not he will need it. Unless he is using a heavy engine (P-80, K-80, Ram750,...) he probably won't need the nose weight.

Joe
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Old 04-04-2010, 07:49 PM
  #3342
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Default RE: Bob Cat Copy Falcon 120 Jet

I'm using a Ram 750 in mine and early indications are that I'll need all the weight up front I can get.

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Old 04-04-2010, 08:23 PM
  #3343
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Default RE: Bob Cat Copy Falcon 120 Jet

I have a Ram 750 on my Falcon, and I added another header tank of 8 oz
on a tray over the nose gear formers (where the air tank goes) to provide the
correct CG. You will love the performance and the verticles you get from
the additional thrust.

Johnny
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Old 04-04-2010, 09:09 PM
  #3344
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Default RE: Bob Cat Copy Falcon 120 Jet


Quote:
ORIGINAL: Johnny Isaiah Woods

I have a Ram 750 on my Falcon, and I added another header tank of 8 oz
on a tray over the nose gear formers (where the air tank goes) to provide the
correct CG. You will love the performance and the verticles you get from
the additional thrust.

Johnny
It was the video of yours that inspired me to get one. Just got to get it finished.

Galen

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Old 04-04-2010, 11:35 PM
  #3345
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Default RE: Bob Cat Copy Falcon 120 Jet


Quote:
ORIGINAL: joeflyer

Of course you guys are right, it depends mainly on the weight of the turbine. I have no idea what turbine ticketec is using. The best advise for him is to not cut out a forward hatch before knowing weather or not he will need it. Unless he is using a heavy engine (P-80, K-80, Ram750,...) he probably won't need the nose weight.

Joe

A Wren 54 Mk 2.5

I put in nearly all the major bits and pieces i needed and she looked to be tail heavy which is why I was thinking i needed the packs all the way up front, but you do have a fair point. not need to rush making the hatch, just as simple later on as well.

I've almost finished boxing in the nose wheel, just have to work out if i will glass in the inside of the box seeing as i fly from grass and it could get all kinds of things in there...

Thanks

dave
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Old 04-06-2010, 05:14 PM
  #3346
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Default RE: Bob Cat Copy Falcon 120 Jet

For Sale my Falcon 120 Jet plus Jet Central Rabbit Turbine Bindnfly professional set up see link below; SOLD

http://www.rctrader.com.au/index.php...id,5/Itemid,0/

PM if interested.

Mav
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Old 04-10-2010, 01:36 PM
  #3347
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Default RE: Bob Cat Copy Falcon 120 Jet

any one have a right wing panel for the black and orange they dont need
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Old 04-11-2010, 07:24 AM
  #3348
ticketec
 
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Default RE: Bob Cat Copy Falcon 120 Jet


Quote:
ORIGINAL: Mavrik!

For Sale my Falcon 120 Jet plus Jet Central Rabbit Turbine Bindnfly professional set up see link below;

http://www.rctrader.com.au/index.php...id,5/Itemid,0/

PM if interested.

Mav
Mav, bit of a fire sale??? I see your stuff for sale everywhere!!!

Thanks

dave
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Old 04-12-2010, 06:26 AM
  #3349
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Default RE: Bob Cat Copy Falcon 120 Jet


Quote:
ORIGINAL: ticketec


Quote:
ORIGINAL: Mavrik!

For Sale my Falcon 120 Jet plus Jet Central Rabbit Turbine Bindnfly professional set up see link below;

http://www.rctrader.com.au/index.php...id,5/Itemid,0/

PM if interested.

Mav
Mav, bit of a fire sale??? I see your stuff for sale everywhere!!!

Thanks

dave

Dave,

Yea I got to make room and raise funds for the next project

How is your Falcon going???? Will you travel down to Temora this year?

Mav
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Old 04-24-2010, 08:08 PM
  #3350
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Default RE: Bob Cat Copy Falcon 120 Jet

trying to post a picture
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