HeliTB

Well I finished my Falcon/Bobcat 25 Wednesday. Didn't get a chance to maiden today. But here are some pics of my color changed Falcon/Bobcat 25 Jet.

Specs:
OS AX .35 Engine w/9x6p prop
Rudder - Hitec 65s
Aileron - Hitec 81s
Elevator - Hitec 81
Throttle - Hitec 325
Nose Wheel - Hitec 325

TUMBLER

My Feedback: (13)

SWEEEET! Great Job! I want to finish my other .25 size now!!

HeliTB

Hey Tumbler, do you think my AOA is too high in the front? I got the front about a 1" higher than the rear.

TUMBLER

My Feedback: (13)

It looks a little extreme, but I don't think it would cause a problem so much as not having enough of positive AOA. I use an incidence metter on the wing and make sure I have at least 1-2 degrees positive. That is usually all you need, but I really can't see how having more than that is going to hurt you.

BillS

The downside is that the airplane might take off at a speed that is below stall speed, which might not be good. But you alreay know that.

Bill

TUMBLER

My Feedback: (13)

Very true. I fly off grass and generally they bounce off rather than fly off the runway alot of times before they are ready to fly. I just make sure to keep the nose leavel and let the plane build up speed before making a turn or climbing. it's when you get the nose up that you get yourself in trouble. [X(]

HeliTB

Thanks Tumbler and BillS. I will reduce the AOA to about 1/2" difference from front to back. I had another fellow pilot question the AOA stating the same thing BillS stated about lifted off below stall speed.

cyborg1

Besides the stall speed, if the landing isn't perfect, it will bounce and bounce and bounce......well you know how it is.

Xairflyer

My Feedback: (1)

I take off from tarmac and it leaps into the air rather than flying off, I have since fitted a larger main wheel and shortend the main gear legs as I am using fixed gear and it now flys off much better.

HeliTB

XairFlyer...Are you saying you kept the same AOA and changed the main wheels to reduce the bounce. I'm using Hanger 9 2" wheels all the way around instead of the foam. I fly off grass and I think the grass would tear the foam up.

I did lower the AOA to where the difference from the front to the back is 1/4" which is about 2 degrees. It actually looks better as well.

Xairflyer

My Feedback: (1)

I have 3" foam wheel on front and 2 1/2" wheels on the mains, It now has a obvious positive AoA look when sitting on the gound, I found before it was nearlly negative which made it hard to fly off the runway.
I tend to takeoff on our narrow tarmac strip and land on the grass.
My Turbine Bobcat is setup to be practical and reliable, I have changed the undercarriage legs for 5mm wire and also beefed up the mounts inside the wing for the mains as they were just glued to the side of one rib.

I like the foam wheels as they are very lite and cheap

HeliTB

XairFlyer....I guess I should have mentioned that my initial AOA was 1" positive, which was about 7-10 degrees. So my AOA is still positive but not as much.

HeliTB

Maiden was aborted due to a faulty main gear. As I was taxiing out the right main gear broke at the bend. What a bummer. Actually its better it happened before take off rather than landing. I will have to order some 1/8 wire and bend it.

mr.scale

My Feedback: (4)

hi,
does the kit come with the retracts?do nitro planes sell the retracs for it or what alternative works? will my Magnum 52XLS (ringed) with a 11x7 APC prop will fly this thang?
Got the green light from the wife!!!

I almost want to get the 120,but i got a 60" A-10 on the building board!!!
Fernando....

opjose

No.

No.

The easiest to install are standard sized AIR actuated retracts, or those made for 60-90 sized planes for extra strength.

It will do well, especially if you work to keep the plane light.

I fly mine with 2 stroke GMS .76 engines using a Graupner 11x8 pusher prop.
This gives the plane lots of power and speed.

mr.scale

My Feedback: (4)

thanks....

Crazy4Flight

My Feedback: (540)

Spring air retracts for the greatplanes patroit 40 kit may/might fit. #305
http://www.retracts.com/GearKit_Sets.htm

I had one fixed gear flew it with OS.50SX and Jett .50 (not broken in yet), flew ok
but a .75 would give it some go! several guys used tower .75 cheap but runs well.

stock landing gear blocks in mine were poorly installed broke on 2nd flight.

mr.scale

My Feedback: (4)

.

BillS

I have flown my Bob Cat with an OS .45 and an OS .50 and neither engine had enough reserve power. Now the airplane has a Tower .75. The .75 engine has plenty of power but is difficult to slow down for landing.

Bill

Most Bob Cats will weigh 7 pounds or more.

mr.scale

My Feedback: (4)

thanks!!

TUMBLER

My Feedback: (13)

Hey,

Are you guys just using the stock wing retention method with the one bolt?

Thanks!

Brian

rebranger

Yes, I am. Ya gotta keep the bolt tight tho..It will work loose,

cyborg1

if you're not going to dissaemble the plane, epoxy the wings to the fuselage for added strength

mr.scale

My Feedback: (4)

will this set work? does incluide all three assemblys?http://www3.towerhobbies.com/cgi-bin...?&I=LXL406&P=0

or this will work?http://www3.towerhobbies.com/cgi-bin...?&I=LXMJK2&P=0

any comments? other than going 200bucks for air retracts? I'm thinking on taking all the covering off and do a military with armament!!Lol ( i have all the bombs and missiles ready for it!!!!!!!)

Boomerang1

Like this? - John.