3D-Foamy F18 EDF Mini Fan 480 Project
10-12-2007, 06:20 AM
#176
Junior Member
My Feedback: (1)
Join Date: Aug 2002
Location: Kokomo,
IN
Posts: 16
Likes: 0
Received 0 Likes
on
0 Posts
RE: 3D-Foamy F18 EDF Mini Fan 480 Project
You might want to try this link. It calculates the C/G.
http://www.geistware.com/rcmodeling/cg_calc.htm
http://www.geistware.com/rcmodeling/cg_calc.htm
10-12-2007, 08:33 AM
#177
RE: 3D-Foamy F18 EDF Mini Fan 480 Project
I have the CG calculated at 3.875 back from the front edge (the flat portion) of the wing. The fuse bulkhead is at the same location. Here are a few more dimensions not on the plan also.
Aileron servo - .79 below the wing and 4.76 back from the same point as the CG. I mounted mine on the outside of the fuse for easy adjustment.
Elevator servo - 14.29 from the front of the wing to the front of the servo.
Elevator hingepoint - 16.83 from the front of the wing and .275 below the engine stick.
Nice tail markings [8D]
Aileron servo - .79 below the wing and 4.76 back from the same point as the CG. I mounted mine on the outside of the fuse for easy adjustment.
Elevator servo - 14.29 from the front of the wing to the front of the servo.
Elevator hingepoint - 16.83 from the front of the wing and .275 below the engine stick.
Nice tail markings [8D]
10-12-2007, 09:56 AM
#178
Senior Member
Thread Starter
My Feedback: (1)
Join Date: Oct 2004
Location: USA
Posts: 261
Likes: 0
Received 0 Likes
on
0 Posts
RE: 3D-Foamy F18 EDF Mini Fan 480 Project
Thanks guys for the CG info and calculator. Work I had for today was cancelled. I may try to maiden the foamy UAV F18 today...
10-12-2007, 07:44 PM
#179
Senior Member
Thread Starter
My Feedback: (1)
Join Date: Oct 2004
Location: USA
Posts: 261
Likes: 0
Received 0 Likes
on
0 Posts
RE: 3D-Foamy F18 EDF Mini Fan 480 Project
Rather than clutter here, I posted here info on the new foamy F18 maiden here: http://www.rcuniverse.com/forum/fb.asp?m=6483217
01-28-2008, 05:59 PM
#180
Junior Member
Join Date: Oct 2002
Location: SC
Posts: 1
Likes: 0
Received 0 Likes
on
0 Posts
RE: 3D-Foamy F18 EDF Mini Fan 480 Project
ORIGINAL: PilotSmith
Three flights and 3 crashes. [
] At least I'm being consistent. Flight #1 ESC fried using 4 cell LiPo - front end wasted. Flight #2 throttle glitching and I got nervous and brought her down messy and bumped a pole - minimal wing damage. Flight #3 today: Range check fine. Flying in the middle of a dry lake in the middle of a desert, in the middle of nowhere so there was no interference. Take off is a little hairy as I still have the controls a bit too sensitive. Was messing with the dual rate switches on take off to see which mode felt better - one not enough and the other too much. Few seconds later after turning around and on the way back for a straight pass she becomes demon possed and does a sharp dive and a flip up. I also hear the throttle change in pitch. I decided to cut back throttle as at that point she is doing her own thing. I walk out to the plane and it is glitching real bad. Motor is turning on and off despite throttle being at zero and servos jittering. Damage is moderate. Have crack in rear fuse, one broker vertcal stabilizer, and cracked up cockpit area.
I was also going to take out my F22 today that I just finished up. But when I plugged all the electronics in it was glitching a whole bunch, so I figured something was wrong with the receiver so I left it at home. Now what is interesting is that the FA18 after the crash had the same glitches going throught it (throttle going on and off, servos jittering) that the F22 had at home. So I figure my radio may be having some intermittent problems. When I got back I tried the radio with the F22 again and it didn't have a single glitch. So now I wonder if it is an intermittent problem, how the heck will they fix it if it is not acting up when it goes in for warranty work?!?[:@]
If you guys want to see crash #3, here is the link: www.smithland.com/FA18-3.wmv . My son did a little better job on the video this time. 5MB file. I'm going to take a break for a few weeks before I start any repairs. This is getting too frustrating right now.
Three flights and 3 crashes. [
] At least I'm being consistent. Flight #1 ESC fried using 4 cell LiPo - front end wasted. Flight #2 throttle glitching and I got nervous and brought her down messy and bumped a pole - minimal wing damage. Flight #3 today: Range check fine. Flying in the middle of a dry lake in the middle of a desert, in the middle of nowhere so there was no interference. Take off is a little hairy as I still have the controls a bit too sensitive. Was messing with the dual rate switches on take off to see which mode felt better - one not enough and the other too much. Few seconds later after turning around and on the way back for a straight pass she becomes demon possed and does a sharp dive and a flip up. I also hear the throttle change in pitch. I decided to cut back throttle as at that point she is doing her own thing. I walk out to the plane and it is glitching real bad. Motor is turning on and off despite throttle being at zero and servos jittering. Damage is moderate. Have crack in rear fuse, one broker vertcal stabilizer, and cracked up cockpit area. I was also going to take out my F22 today that I just finished up. But when I plugged all the electronics in it was glitching a whole bunch, so I figured something was wrong with the receiver so I left it at home. Now what is interesting is that the FA18 after the crash had the same glitches going throught it (throttle going on and off, servos jittering) that the F22 had at home. So I figure my radio may be having some intermittent problems. When I got back I tried the radio with the F22 again and it didn't have a single glitch. So now I wonder if it is an intermittent problem, how the heck will they fix it if it is not acting up when it goes in for warranty work?!?[:@]
If you guys want to see crash #3, here is the link: www.smithland.com/FA18-3.wmv . My son did a little better job on the video this time. 5MB file. I'm going to take a break for a few weeks before I start any repairs. This is getting too frustrating right now.
It would be my suggestion to dial in some exponential on your low rates. This is helpful, particularly if a plane is very fast. It softens the controls and prevents "jittering" in flight. I have a Hobby Lobby Lynx that was a dog to fly until I put exponential on the low rates (50%). It then became as docile as a moo cow!
01-29-2008, 10:27 AM
#181
Senior Member
Thread Starter
My Feedback: (1)
Join Date: Oct 2004
Location: USA
Posts: 261
Likes: 0
Received 0 Likes
on
0 Posts
RE: 3D-Foamy F18 EDF Mini Fan 480 Project
I recently put a new RX in the F18 to use it with my DX7 radio. That radio in my helicopter has been excellent with ZERO glitches. Next flight hope to have it properly balanced and with no glitches during the flight. Will also have expo in there too. Don't think I had expo programmed in when I flew it with my Optic 6 radio. Learned to use expo flying my heli. It does make it much easier to keep things smooth!
03-11-2008, 01:50 PM
#182
Junior Member
Join Date: Mar 2008
Location: waterloo, ON, CANADA
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
RE: 3D-Foamy F18 EDF Mini Fan 480 Project
did you build this model from plans, if so could you E-Mail them to me at [email protected] Iwould much appriciate it
thanks Lewis
thanks Lewis
03-11-2008, 07:06 PM
#183
Senior Member
Thread Starter
My Feedback: (1)
Join Date: Oct 2004
Location: USA
Posts: 261
Likes: 0
Received 0 Likes
on
0 Posts
RE: 3D-Foamy F18 EDF Mini Fan 480 Project
ORIGINAL: lewyaka
did you build this model from plans, if so could you E-Mail them to me at [email protected] Iwould much appriciate it
thanks Lewis
did you build this model from plans, if so could you E-Mail them to me at [email protected] Iwould much appriciate it
thanks Lewis
Note that I did enlarge the plans to fit the fan unit. I don't have details any longer on how much I enlarged portions of the plans.
07-31-2009, 10:36 AM
#185
Senior Member
My Feedback: (2)
Join Date: Mar 2005
Location: Barnesville,
GA
Posts: 191
Likes: 0
Received 0 Likes
on
0 Posts
RE: 3D-Foamy F18 EDF Mini Fan 480 Project
PilotSmith,
Been reading this forum.
I am looking for a set of plans for the same F-18 build.
Where can I find a copy of the plans?
Thanks
Been reading this forum.
I am looking for a set of plans for the same F-18 build.
Where can I find a copy of the plans?
Thanks
07-31-2009, 11:11 AM
#186
Senior Member
My Feedback: (2)
Join Date: Mar 2005
Location: Barnesville,
GA
Posts: 191
Likes: 0
Received 0 Likes
on
0 Posts
RE: 3D-Foamy F18 EDF Mini Fan 480 Project
I went to 3Dfoamy web site but it appears to be broken/down.
Tried emailing but emails are returned user unknown.
I would like to get a set of the F-15 plans via Adobe PDF. (if unvailable the F-18 would be fine too)
Can anyone help?
Thanks
Tried emailing but emails are returned user unknown.
I would like to get a set of the F-15 plans via Adobe PDF. (if unvailable the F-18 would be fine too)
Can anyone help?
Thanks
07-31-2009, 11:59 AM
#187
Senior Member
Thread Starter
My Feedback: (1)
Join Date: Oct 2004
Location: USA
Posts: 261
Likes: 0
Received 0 Likes
on
0 Posts
RE: 3D-Foamy F18 EDF Mini Fan 480 Project
Looks like the links are messed up on their site. I checked my computer and could not find the plans. Give them a call or email at 3dFoamy to see if they can help you out.
I need to get mine in the air again. Been too busy to play with my toys for a while. She is still in 1 piece and I have a new 4 cell battery ready for it. I also put in a gyro to make the hand launch less hairy. Just need the time to take it out to the field now...
I need to get mine in the air again. Been too busy to play with my toys for a while. She is still in 1 piece and I have a new 4 cell battery ready for it. I also put in a gyro to make the hand launch less hairy. Just need the time to take it out to the field now...
07-31-2009, 02:22 PM
#188
Senior Member
My Feedback: (2)
Join Date: Mar 2005
Location: Barnesville,
GA
Posts: 191
Likes: 0
Received 0 Likes
on
0 Posts
RE: 3D-Foamy F18 EDF Mini Fan 480 Project
Thanks.
Did try the email but they all kicked back, user unkown.
You put a gyro in yours?
What is your configuration with the gyro?
That sounds really interesting.
Did try the email but they all kicked back, user unkown.
You put a gyro in yours?
What is your configuration with the gyro?
That sounds really interesting.
07-31-2009, 04:08 PM
#189
Senior Member
Thread Starter
My Feedback: (1)
Join Date: Oct 2004
Location: USA
Posts: 261
Likes: 0
Received 0 Likes
on
0 Posts
RE: 3D-Foamy F18 EDF Mini Fan 480 Project
I put in a gyro to control the ailerons so I don't have to worry so much about trying to keep it level on the hand launches in case a wing starts to dip. Curious myself how well that will work. Last time I flew my standard pusher F18 a gust of wind hit it from the side just as it was about to touch down. Flipped it over and cracked in half. That was another motivator to put in the gyro my EDF F18.
07-31-2009, 10:28 PM
#191
Senior Member
Thread Starter
My Feedback: (1)
Join Date: Oct 2004
Location: USA
Posts: 261
Likes: 0
Received 0 Likes
on
0 Posts
RE: 3D-Foamy F18 EDF Mini Fan 480 Project
Hey Vicman! You still have a squadron of these F18's flying? I'm on vacation for 2 weeks now so hope to get mine in the air soon.
