Bob Cat Copy Falcon 120 Jet
07-02-2007, 09:09 AM
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RE: Bob Cat Copy Falcon 120 Jet
Any one made any more progress with there Falcon yet? I have the new nose gear mounts done and cut the covering off the bottom of the wing to change out the gear mounts for the bigger Robart gear. By the way can I change my 85 degree to 90 for the mains that I was putting in till I found that yesterday? Todd
07-02-2007, 08:41 PM
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RE: Bob Cat Copy Falcon 120 Jet
Yes I had three flights on sunday. on the ali. a little trim , on the elevator, little trim up.
On the ele. make sure that the top of the stab is even with the ele. NOT THE BOTTOM.
The C/G is perfect at 13 inches. I even had one deadstick. and it like to glide. I did not use flaps. The Byron fan system works great at 4-1/4 outlet. I will try 4 inch outlet next , after that some props. I use spring/air Robarts.
On the ele. make sure that the top of the stab is even with the ele. NOT THE BOTTOM.
The C/G is perfect at 13 inches. I even had one deadstick. and it like to glide. I did not use flaps. The Byron fan system works great at 4-1/4 outlet. I will try 4 inch outlet next , after that some props. I use spring/air Robarts.
07-05-2007, 11:19 AM
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RE: Bob Cat Copy Falcon 120 Jet
I just got my Falcon 120. I'd like to know what size motor to put in this jet? I'm thinking about a GMS120 or an OS140.
Have any of you out there tried these combinations? Thanks.......
Have any of you out there tried these combinations? Thanks.......
07-05-2007, 11:26 AM
#109
RE: Bob Cat Copy Falcon 120 Jet
ORIGINAL: gliderpilot
I just got my Falcon 120. I'd like to know what size motor to put in this jet? I'm thinking about a GMS120 or an OS140.
Have any of you out there tried these combinations? Thanks.......
I just got my Falcon 120. I'd like to know what size motor to put in this jet? I'm thinking about a GMS120 or an OS140.
Have any of you out there tried these combinations? Thanks.......
Dave
07-05-2007, 11:54 AM
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RE: Bob Cat Copy Falcon 120 Jet
ORIGINAL: JIMZACH
To start with I had a GMS 120 that I put in, but the next engine will be an OS 160. The retrcts are ROBART 520 series with a fork type strut I made. I spoke to robart and ordered parts to install a 656 ROBO STRUT in nose gear. The wings come off easy with a wing nut ( did not use 6mm plastic bolt supplied) and I plan to leave the booms on (THEY ARE A PAIN).
To start with I had a GMS 120 that I put in, but the next engine will be an OS 160. The retrcts are ROBART 520 series with a fork type strut I made. I spoke to robart and ordered parts to install a 656 ROBO STRUT in nose gear. The wings come off easy with a wing nut ( did not use 6mm plastic bolt supplied) and I plan to leave the booms on (THEY ARE A PAIN).
This from earlier in the thread.
Neo
07-09-2007, 08:25 PM
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RE: Bob Cat Copy Falcon 120 Jet
Some of my gear mount upgrade for the bigger gear. The blocks that were there came out without breaking any ribs........HUMMMMM.
Todd
Todd
07-09-2007, 11:05 PM
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RE: Bob Cat Copy Falcon 120 Jet
I have no details. I was not at the field when this pic was taken. I believe it's a ram 750. I don't think it has flown yet. The same fellow has 2 of the 50 size bobcats with jet joes on them.
07-12-2007, 09:51 AM
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RE: Bob Cat Copy Falcon 120 Jet
i have a super bee on mine but i would like to hear some flight reports before i fly it, especially the take offs and landings.
07-12-2007, 10:10 PM
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RE: Bob Cat Copy Falcon 120 Jet
The Falcon pictured in Randy M. post is mine. It is packing
a Ram 750 air start. Fuel is 90 + ozs in a bottom 50 oz, 32
oz sitting on top of the 50 and the tank that comes with the
plane. The dry weight is 16.5 lbs and ballanced forward of the
13 in. for the test flight (nose heavy is much better than
tail heavy on first flight). The plane has not flown yet because
of other problems unrelated to flying, but hopefully by this
week end. Results will be posted, good or bad, using the new
XPS 10 channel reciever in a JR 10S.
Johnny
a Ram 750 air start. Fuel is 90 + ozs in a bottom 50 oz, 32
oz sitting on top of the 50 and the tank that comes with the
plane. The dry weight is 16.5 lbs and ballanced forward of the
13 in. for the test flight (nose heavy is much better than
tail heavy on first flight). The plane has not flown yet because
of other problems unrelated to flying, but hopefully by this
week end. Results will be posted, good or bad, using the new
XPS 10 channel reciever in a JR 10S.
Johnny
07-12-2007, 11:51 PM
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RE: Bob Cat Copy Falcon 120 Jet
i have been flying mine for about a week now. CG is the stated 13 inces and that is perfect...the plane is great for power i have a supertigre 2300...at this time the motor is not performing well..gotta break it in and i am also planning for a header tank, but you guys will love it
07-15-2007, 09:02 AM
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RE: Bob Cat Copy Falcon 120 Jet
Hello Guys!!! Looks like a great project and lots of nice work guys....
Where can I purchase one retract ready??? I would like to put my new Wren MW54 MKlll on it... I can purchase it in the States or in Europe as I will be here for the Summer to Fall months...
Thanks and Happy Flying...
Mojo
Where can I purchase one retract ready??? I would like to put my new Wren MW54 MKlll on it... I can purchase it in the States or in Europe as I will be here for the Summer to Fall months...
Thanks and Happy Flying...
Mojo
07-15-2007, 03:35 PM
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RE: Bob Cat Copy Falcon 120 Jet
ORIGINAL: JIMZACH
Hi guys, First flight was UGLY. GMS 120 with the 14x7 three blade is not enough, needs more blade to start with. RPM'S in the air were verry high but no push. Take off took for ever and then shot straight up , landing after cutting power went straight down. I found out on second flight both problems were better wih at least half flaps. For you guy's with JR radios down load BVM data safe program for BOB CAT it will give you basic set up and crow. Next step will be to replace GMS 120 with OS 160, Already ordered pusher pipe from WESTON UK.
Hi guys, First flight was UGLY. GMS 120 with the 14x7 three blade is not enough, needs more blade to start with. RPM'S in the air were verry high but no push. Take off took for ever and then shot straight up , landing after cutting power went straight down. I found out on second flight both problems were better wih at least half flaps. For you guy's with JR radios down load BVM data safe program for BOB CAT it will give you basic set up and crow. Next step will be to replace GMS 120 with OS 160, Already ordered pusher pipe from WESTON UK.
Thank You Jim,
Mojo
