Skymaster F18D Hornet twin build
#151
Hi Gunradd,
Sorry for the downfall of your f-18. This was one of the most beautiful jets I've ever seen. I'm thinking of putting one of those F-18s together. Is making it very difficult? Which radio and turbine do you advise to use?
Tks
Bruno
Sorry for the downfall of your f-18. This was one of the most beautiful jets I've ever seen. I'm thinking of putting one of those F-18s together. Is making it very difficult? Which radio and turbine do you advise to use?
Tks
Bruno
#152
My Feedback: (18)
Dude, that was one wild ride! Don't beat yourself up, even Ali might not have been able to save her, the fact it didn't crash on takeoff is a testament to your flying skills.
Crashes are painful, we've all had them (maybe some more than ohers, HA), but we move on, right.
Your next one will be even more impressive I'm sure!
Crashes are painful, we've all had them (maybe some more than ohers, HA), but we move on, right.
Your next one will be even more impressive I'm sure!
#153
My Feedback: (3)
Hated to hear that the F-18 went in, but I am sure the next one will be better. You have a lot of turbine flights, and you have skills as a pilot, things happen and we learn from it. Thanks for posting the progress and issues with the kit and the instruction manual, I am sure that we all benefit from that. Keep your head up.
P. Richards aka SwatTeam
P. Richards aka SwatTeam
#155
Hind sight is always 20 20.
Lessons learned...
I should have ran the engines one at a time then I would have seen the RPM problem.
I should have just landed the plane on the first lap despite some one being on the runway even if it was into the grass.
On the final turn I think if I rolled to slight inverted like I did on the turn before that I could have gotten the nose down and avoided the departure from flight that killed it.
Last lesson. When Ali is standing next to you and something like this is going on just give him the sticks lol. I am very grateful he came to help me out hes one of the best guys in this hobby and a good friend.
Lessons learned...
I should have ran the engines one at a time then I would have seen the RPM problem.
I should have just landed the plane on the first lap despite some one being on the runway even if it was into the grass.
On the final turn I think if I rolled to slight inverted like I did on the turn before that I could have gotten the nose down and avoided the departure from flight that killed it.
Last lesson. When Ali is standing next to you and something like this is going on just give him the sticks lol. I am very grateful he came to help me out hes one of the best guys in this hobby and a good friend.
Last edited by dubd; 03-19-2017 at 08:18 AM.
#156
Gun sorry see that beauty go in, I read your post and didn't want to bother you if your not in the mood. I was confused and wanted to make sure since eventually I do want to build one of these. This issue was the turbine being so close causing the turbines to read opposite rpm? I learned something here I didn't even know that was possible, but it makes since. Again sorry for the loss.
Last edited by FenderBean; 03-19-2017 at 08:45 AM.
#157
Thread Starter
My Feedback: (9)
Gun sorry see that beauty go in, I read your post and didn't want to bother you if your not in the mood. I was confused and wanted to make sure since eventually I do want to build one of these. This issue was the turbine being so close causing the turbines to read opposite rpm? I learned something here I didn't even know that was possible, but it makes since. Again sorry for the loss.
I also was unaware if this with twins. They need to be reclocked to avoid each other. Just can't clock them to much because then they won't start. Jim tried to break up the signal on his with carbon fiber between them and other stuff also. Nothing worked reliable accept reclocking them.
#161
My Feedback: (18)
Hi Kris,
Just want to say we're feeling for you pal. Plane looked awesome, it literally made me want to get an F-18D... Looking forward to seeing your next project and following your build thread.
Note: Someone should probably make a point in the general RC Jet Forum, & elsewhere, to raise awareness related to the twin turbine proximity point. I'm sure a lot of us are not aware of this. This type of thing should be well studied and documented to help mitigate this from reoccurring. Even the turbine & model manufacturers should probably make a point to inform builders on twin setups.
Take Care.
Just want to say we're feeling for you pal. Plane looked awesome, it literally made me want to get an F-18D... Looking forward to seeing your next project and following your build thread.
Note: Someone should probably make a point in the general RC Jet Forum, & elsewhere, to raise awareness related to the twin turbine proximity point. I'm sure a lot of us are not aware of this. This type of thing should be well studied and documented to help mitigate this from reoccurring. Even the turbine & model manufacturers should probably make a point to inform builders on twin setups.
Take Care.
Last edited by skunkwurk; 03-19-2017 at 11:09 AM.
#162
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Join Date: Aug 2010
Location: Down Unda, MB, UGANDA
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Gunradd, sorry for your loss brotha. Keep your chin up, this is just a minor setback and you will be back at it before you know it. Everyone at one point in their flying career has to taste this, fortunately it builds character and determination. You had one SWEET ASS F18. Next one will be even better.
#163
My Feedback: (11)
It's always a hard thing to take regardless if you spent two years kit building or a few months, it's still a disheartening thing. I know you will take the positives from this as we all learn from theses kind of things and we become better from them. Most of the guys that have been doing this have had a loss. It still hurts and sometimes we question ourselves. When I crashed my two year long kit build on the tenth flight I kind of went into shock of the rc kind, you shrug it off and move on but it takes time for it all to soak in and you are taking it like a champ whitch speaks volumes to your piloting skills, there is more to flying then yanking the sticks.
Thank you for shearing both the build and the misshap.
TB
Thank you for shearing both the build and the misshap.
TB
Last edited by TonyBuilder; 03-19-2017 at 12:29 PM.
#164
My Feedback: (57)
Sorry for the loss dude! That SUCKS
at least we just pick up the pieces & lick our (emotional) wounds. If you were a biker (or many other sports), that could have been a life changing/or ending event. I'm sure you'll be back with something just as cool
& looks like you did a great job (attempting the save) for what you had going on.
Jay
at least we just pick up the pieces & lick our (emotional) wounds. If you were a biker (or many other sports), that could have been a life changing/or ending event. I'm sure you'll be back with something just as cool
& looks like you did a great job (attempting the save) for what you had going on.
Jay
#165
I also was unaware if this with twins. They need to be reclocked to avoid each other. Just can't clock them to much because then they won't start. Jim tried to break up the signal on his with carbon fiber between them and other stuff also. Nothing worked reliable accept reclocking them.
#167
My Feedback: (2)
Join Date: Oct 2004
Location: Durham, NC
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SAFTEY ALERT Any twin turbine setup check to see that one engine does not read the others RPM ... I had this problem with mine and spotted it while doing repairs. Another plane was lost at the event and we think this may have caused the problem. I was able to fix mine by rotating engine #1 45 deg.
#168
My Feedback: (2)
Gunradd,
really sorry to see your model go in.
i know everyone's going to have a pet theory as to what happened, but can I ask the following.
1) did you have the transmitter set up to start each engine individually or both at the same time?
2) did you have a gyro on it that had a heading hold facility on the rudder?
its just the behaviour of the flight looks awful like a rather exciting flight I had one time of my small SM A-10....
really sorry to see your model go in.
i know everyone's going to have a pet theory as to what happened, but can I ask the following.
1) did you have the transmitter set up to start each engine individually or both at the same time?
2) did you have a gyro on it that had a heading hold facility on the rudder?
its just the behaviour of the flight looks awful like a rather exciting flight I had one time of my small SM A-10....
#169
Thread Starter
My Feedback: (9)
Gunradd,
really sorry to see your model go in.
i know everyone's going to have a pet theory as to what happened, but can I ask the following.
1) did you have the transmitter set up to start each engine individually or both at the same time?
2) did you have a gyro on it that had a heading hold facility on the rudder?
its just the behaviour of the flight looks awful like a rather exciting flight I had one time of my small SM A-10....
really sorry to see your model go in.
i know everyone's going to have a pet theory as to what happened, but can I ask the following.
1) did you have the transmitter set up to start each engine individually or both at the same time?
2) did you have a gyro on it that had a heading hold facility on the rudder?
its just the behaviour of the flight looks awful like a rather exciting flight I had one time of my small SM A-10....
I had the engines on a Y cable.
Gyro was the new cortex pro with heading hold disabled. Also on the maiden flight where this same thing happened the gyro was off the entire flight.
#170
My Feedback: (2)
Ah, there goes my theory, then.
i took off one time with one of my Engines at idle, (finger trouble as they were on a 3 position switch, ne for both, one for left and the 3rd position for the right engine ) AND the gyro (an igyro) on in the rudder heading hold mode.
Your F18 looked like my A10 behaved in yaw AND the way your model never seemed to quite stabilise in roll, despite the gyro, made me think.
Doesnt seem to apply to your situation. Sorry I couldn't help, and I hope you figure out what happened.
i took off one time with one of my Engines at idle, (finger trouble as they were on a 3 position switch, ne for both, one for left and the 3rd position for the right engine ) AND the gyro (an igyro) on in the rudder heading hold mode.
Your F18 looked like my A10 behaved in yaw AND the way your model never seemed to quite stabilise in roll, despite the gyro, made me think.
Doesnt seem to apply to your situation. Sorry I couldn't help, and I hope you figure out what happened.
#172
My Feedback: (21)
A steel or iron plate will attenuate the magnetic cross talk between the motors.There is also something called miracle metal that is supposed to block magnetic fields. The thickness is the issue depending on how strong the magnetic field is. It could get heavy. I am building a Mig 29 with 2 Cheetah 160's and they are about 9" apart center to center. Just curious how far apart are the engines in the F-18?
#174
Thread Starter
My Feedback: (9)
A steel or iron plate will attenuate the magnetic cross talk between the motors.There is also something called miracle metal that is supposed to block magnetic fields. The thickness is the issue depending on how strong the magnetic field is. It could get heavy. I am building a Mig 29 with 2 Cheetah 160's and they are about 9" apart center to center. Just curious how far apart are the engines in the F-18?
They where about 1 inch apart in the front
#175
My Feedback: (41)
SAFTEY ALERT Any twin turbine setup check to see that one engine does not read the others RPM ... I had this problem with mine and spotted it while doing repairs. Another plane was lost at the event and we think this may have caused the problem. I was able to fix mine by rotating engine #1 45 deg.
I've not flown my F-14 or even started the beast up with it's new engines, but mine are setup on a switch as bidrseed talked about and I'll watch for the RPM bleed over issue in any case.