Cermark Extra 260 70"
08-15-2011 | 07:04 AM
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From: Less Summit, MO
Cermark Extra 260 70"
Hey all... I am currently building this bird ( the yellow one )and I am ready to mount the gas tank as well as the throttle servo. The tank if mounted on the floor of the fuse will be some 2 inches or so below the motor. Now I know the gas motors have a pump to draw fuel but do I need to elevate the tank at all inside the fuse??? Also I see no real good place to mount the throttle servo unless I go way back to the back tray where the pull pull rudder servo mounts and that would give me like a 14" long throttle linkage??
Any of you guys that have built this bird that can guide me in the right direction?? Any pics of you "inside" setup?
Thanks for any help from the pros out there!!!
Mark
Any of you guys that have built this bird that can guide me in the right direction?? Any pics of you "inside" setup?
Thanks for any help from the pros out there!!!
Mark
08-15-2011 | 07:53 AM
#2
RE: Cermark Extra 260 70
ORIGINAL: Doclove524
Hey all... I am currently building this bird ( the yellow one ) and I am ready to mount the gas tank as well as the throttle servo. The tank if mounted on the floor of the fuse will be some 2 inches or so below the motor. Now I know the gas motors have a pump to draw fuel but do I need to elevate the tank at all inside the fuse??? Also I see no real good place to mount the throttle servo unless I go way back to the back tray where the pull pull rudder servo mounts and that would give me like a 14'' long throttle linkage??
Any of you guys that have built this bird that can guide me in the right direction?? Any pics of you ''inside'' setup?
Thanks for any help from the pros out there!!!
Mark
Hey all... I am currently building this bird ( the yellow one ) and I am ready to mount the gas tank as well as the throttle servo. The tank if mounted on the floor of the fuse will be some 2 inches or so below the motor. Now I know the gas motors have a pump to draw fuel but do I need to elevate the tank at all inside the fuse??? Also I see no real good place to mount the throttle servo unless I go way back to the back tray where the pull pull rudder servo mounts and that would give me like a 14'' long throttle linkage??
Any of you guys that have built this bird that can guide me in the right direction?? Any pics of you ''inside'' setup?
Thanks for any help from the pros out there!!!
Mark
Karol
08-17-2011 | 11:43 AM
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From: Less Summit, MO
RE: Cermark Extra 260 70
ORIGINAL: BarracudaHockey
With a gas motor it doesn't matter where you put the tank.
With a gas motor it doesn't matter where you put the tank.
Iam trusting that this is correct and mounting the tank in the floor of the fuse. Anyone have an opinion on the subject??
08-17-2011 | 01:39 PM
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RE: Cermark Extra 260 70
I do the same as well. My engine stand is 30" off the ground and I just set my gas can by the test stand and drop a line down into the gas can. My DLE 55 would not draw the fuel from the gas can being on the ground so I sat it on a chair next to the test stand. The gas can was still not even with the carb.
08-18-2011 | 05:25 AM
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RE: Cermark Extra 260 70
Thanks guys. I actually got if fired up last night with the tank on the fuse floor. Actually had a hard time getting it going and it ran fine for 3 - 4 mins and then I never got it fired again. I think i need to keep the tank somewhat full as last night it was just enough to get her started and was jumping around a bit and possibly sucking some air.. Think maybe my ignition bat was a bit low also. I have run maybe 4 - 5 tanks of fuel through this motor and it seemed to run pretty good.... Don't think it is even broken in yet, but it has always been pretty easy to get started. Last night was a bit concerning cause it was hard to get her to fire. Once she fired she would start right back up, but hen became fussie and didn't want to go. Like I said before maybe was too low on fuel and a bit low on bat??
08-18-2011 | 11:13 AM
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RE: Cermark Extra 260 70
ORIGINAL: Doclove524
Thanks guys. I actually got if fired up last night with the tank on the fuse floor. Actually had a hard time getting it going and it ran fine for 3 - 4 mins and then I never got it fired again. I think i need to keep the tank somewhat full as last night it was just enough to get her started and was jumping around a bit and possibly sucking some air.. Think maybe my ignition bat was a bit low also. I have run maybe 4 - 5 tanks of fuel through this motor and it seemed to run pretty good.... Don't think it is even broken in yet, but it has always been pretty easy to get started. Last night was a bit concerning cause it was hard to get her to fire. Once she fired she would start right back up, but hen became fussie and didn't want to go. Like I said before maybe was too low on fuel and a bit low on bat??
Thanks guys. I actually got if fired up last night with the tank on the fuse floor. Actually had a hard time getting it going and it ran fine for 3 - 4 mins and then I never got it fired again. I think i need to keep the tank somewhat full as last night it was just enough to get her started and was jumping around a bit and possibly sucking some air.. Think maybe my ignition bat was a bit low also. I have run maybe 4 - 5 tanks of fuel through this motor and it seemed to run pretty good.... Don't think it is even broken in yet, but it has always been pretty easy to get started. Last night was a bit concerning cause it was hard to get her to fire. Once she fired she would start right back up, but hen became fussie and didn't want to go. Like I said before maybe was too low on fuel and a bit low on bat??
Lipos are now a great option for the 70" class [8D] Thinking of a 7S Hacker for my 69" plane.
08-18-2011 | 12:02 PM
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From: Less Summit, MO
RE: Cermark Extra 260 70
ORIGINAL: gaRCfield
Let us (me?) know what your plans are for motor and batteries when you've given up on that smelly gas thing Lipos are now a great option for the 70" class [8D] Thinking of a 7S Hacker for my 69" plane.
ORIGINAL: Doclove524
Thanks guys. I actually got if fired up last night with the tank on the fuse floor. Actually had a hard time getting it going and it ran fine for 3 - 4 mins and then I never got it fired again. I think i need to keep the tank somewhat full as last night it was just enough to get her started and was jumping around a bit and possibly sucking some air.. Think maybe my ignition bat was a bit low also. I have run maybe 4 - 5 tanks of fuel through this motor and it seemed to run pretty good.... Don't think it is even broken in yet, but it has always been pretty easy to get started. Last night was a bit concerning cause it was hard to get her to fire. Once she fired she would start right back up, but hen became fussie and didn't want to go. Like I said before maybe was too low on fuel and a bit low on bat??
Thanks guys. I actually got if fired up last night with the tank on the fuse floor. Actually had a hard time getting it going and it ran fine for 3 - 4 mins and then I never got it fired again. I think i need to keep the tank somewhat full as last night it was just enough to get her started and was jumping around a bit and possibly sucking some air.. Think maybe my ignition bat was a bit low also. I have run maybe 4 - 5 tanks of fuel through this motor and it seemed to run pretty good.... Don't think it is even broken in yet, but it has always been pretty easy to get started. Last night was a bit concerning cause it was hard to get her to fire. Once she fired she would start right back up, but hen became fussie and didn't want to go. Like I said before maybe was too low on fuel and a bit low on bat??
Lipos are now a great option for the 70" class [8D] Thinking of a 7S Hacker for my 69" plane.
This gas thing may work out fine??
