BJ Craft Monolog 110 for 2012
09-11-2013, 09:00 PM
#51
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Would they happen to be the : TGY-390V HV Metal gear Coreless Digital Servo w/ Heat Sink 5.4kg / .11sec / 22.5g ?
These are the servos I'm using but they are a pain to make a decent servo mount that still uses the designed geometry. I plan to maiden mine in about a week.
Bob congrats on the maiden!
I have sitting on an Seagull Extra 260 an un-run MLD 28 gas. That might be a little more motor than this plane needs. Maybe the 2m version?
Terry
These are the servos I'm using but they are a pain to make a decent servo mount that still uses the designed geometry. I plan to maiden mine in about a week.
Bob congrats on the maiden!
I have sitting on an Seagull Extra 260 an un-run MLD 28 gas. That might be a little more motor than this plane needs. Maybe the 2m version?
Terry
09-12-2013, 03:16 AM
#52
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Rodney - Thanks! I am enjoying it. The HK servo I'm using is sort of a "standard size" JR 8231 crossed with a JR 8411, but much improved geartrain mechanics. Hardly any backlash noticeable, and electronics seem quite good - here's the link. http://www.hobbyking.com/hobbyking/s...dProduct=22525
Also, I started a thread on HK "High End" servos to find out about others' experience in the Radio forum here. I have two of their Magnetic Induction HV coreless MG servos up next for testing. They are just unbelievable in smoothness and resolution. But also must confess I've not used any of the Futaba brushless or latest JR stuff to compare.
Terry - the servos being "standard" size made the wing mounting a bit of a pain, and probably added weight not needed, but I really wanted to get a feel for these servos. It was worth the effort to me. The elevator is a JR DS 8231...minor surgery required. Rudder also 8231 for right now, soon will be the MI servo mentioned above after more testing.
Also, I started a thread on HK "High End" servos to find out about others' experience in the Radio forum here. I have two of their Magnetic Induction HV coreless MG servos up next for testing. They are just unbelievable in smoothness and resolution. But also must confess I've not used any of the Futaba brushless or latest JR stuff to compare.
Terry - the servos being "standard" size made the wing mounting a bit of a pain, and probably added weight not needed, but I really wanted to get a feel for these servos. It was worth the effort to me. The elevator is a JR DS 8231...minor surgery required. Rudder also 8231 for right now, soon will be the MI servo mentioned above after more testing.
10-02-2013, 03:46 PM
#53
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Would anyone have the flight setup series saved that BJ Craft has from their website that covered the Monolog 70 and 110 before it was been attacked by malware? I'm on the finale construction of my Monolog 110 running on 8s. Thought the servo setups and throws would speed things up.
Terry
Terry
10-02-2013, 03:57 PM
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Would anyone have the flight setup series saved that BJ Craft has from their website that covered the Monolog 70 and 110 before it was been attacked by malware? I'm on the finale construction of my Monolog 110 running on 8s. Thought the servo setups and throws would speed things up.
Terry
Terry
10-03-2013, 05:58 PM
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Would anyone have the flight setup series saved that BJ Craft has from their website that covered the Monolog 70 and 110 before it was been attacked by malware? I'm on the finale construction of my Monolog 110 running on 8s. Thought the servo setups and throws would speed things up.
Terry
Terry
10-04-2013, 07:24 PM
#56
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Hello Bob,
Thank you for helping me on this. I do have a question though you may know the answer. When I mounted the motor (electric) I noted that there was up thrust in the shaft of the motor then I noted that the bottom of the laser cut motor mount was noted that the third cut hole from the top cut is 1/8" farther from the front of the fuselage bulkhead than at the top of the mount, but the three degree right thrust is there? I'm not a novice builder as have built award winners over the last 40 years and all parts check out. I know in my heart that this plane was not designed to fly with that much up thrust. Currently the back of the motor is square with the main bulkhead and zero upthrust.
Thank you for helping me on this. I do have a question though you may know the answer. When I mounted the motor (electric) I noted that there was up thrust in the shaft of the motor then I noted that the bottom of the laser cut motor mount was noted that the third cut hole from the top cut is 1/8" farther from the front of the fuselage bulkhead than at the top of the mount, but the three degree right thrust is there? I'm not a novice builder as have built award winners over the last 40 years and all parts check out. I know in my heart that this plane was not designed to fly with that much up thrust. Currently the back of the motor is square with the main bulkhead and zero upthrust.
10-04-2013, 07:33 PM
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Yep. What you're seeing is right. The actual "firewall" (really it's the forward fuse bulkhead, I suppose) is "square" to the fuse jig construction, apparently. Both of mine were that way. The Upthrust ends up being built in when you assemble the motor mount firewall, and the side pieces set that. I know it is counterintuitive to see that upthrust, but the stab sits slightly positive relative to the wing, and the wing seems positive, also.
I've built a ton of pattern models through the years, and hardly any had upthrust - but Mr. Park knew what he was doing. With the thrust as built-in, these planes fly exceptionally well. I wouldn't have believed it, but it is true.
Build it stock, with the upthrust the side plates build in - it will be fine.
I've built a ton of pattern models through the years, and hardly any had upthrust - but Mr. Park knew what he was doing. With the thrust as built-in, these planes fly exceptionally well. I wouldn't have believed it, but it is true.
Build it stock, with the upthrust the side plates build in - it will be fine.
10-05-2013, 07:27 AM
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Hi guys,
Just got my motor mounted and noticed the upthrust as well. So, my motor is mounted at 81mm per the instructions...... did you all have to cut the backside of the cowling any. If I push my cowling on, it gets snug, but still has about a half inch to go.
Thanks!
Just got my motor mounted and noticed the upthrust as well. So, my motor is mounted at 81mm per the instructions...... did you all have to cut the backside of the cowling any. If I push my cowling on, it gets snug, but still has about a half inch to go.
Thanks!
10-05-2013, 09:10 AM
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Hi guys,
Just got my motor mounted and noticed the upthrust as well. So, my motor is mounted at 81mm per the instructions...... did you all have to cut the backside of the cowling any. If I push my cowling on, it gets snug, but still has about a half inch to go.
Thanks!
Just got my motor mounted and noticed the upthrust as well. So, my motor is mounted at 81mm per the instructions...... did you all have to cut the backside of the cowling any. If I push my cowling on, it gets snug, but still has about a half inch to go.
Thanks!
10-05-2013, 04:14 PM
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OK, with a little searching and ingenuity I have solved the carbon Fiber gear issue on the Monolog 110. Ordered a set of gear from Graphtechrcshop.com item # 280 a quick trip over to my friend Raiko with raikodzigns.com and presto we have carbon gear! See photos below. 
10-05-2013, 05:45 PM
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I liked mhare's idea and tried to find a gear that I would not have to cut. I decided to try the graphtech #127 which is for a H9 funtana. It was around 36 bucks after shipping. The fit is not too bad.... maybe a little wide where it mounts to the fuse, but it is close enough for me. The pic below shows it temporarily in place. I'll just run (2) 8-32's through the existing holes for the wire gear.
Last edited by hannah76; 10-05-2013 at 05:50 PM.
10-07-2013, 06:24 PM
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Thanks Bob. I'll reset per your suggestion to be square with the motor mount and not the number one bulkhead. I need to get this bird in the air, trimmed, and some time alone to practice as were running out of contest in the area until next year.
11-23-2013, 10:42 AM
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I have 4 flights on mine. The built in upthrust was not working out......plane was climbing with power. I added a couple washers to get the thrust closer to 0..... much better now, the plane flies and tracks nice. Not sure why it is recommended and has worked for others.......
11-23-2013, 11:10 AM
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Have not flown mine yet. I still have the upthrust still in it. I wonder if Bob's does not have this upthrust problem due to him using a heavier power system by using the 20 cc gas which I believe would make the plane utilize the upthrust. Have you done the knife edge test that BJ mentions in the setup? If so I would also like to know what batteries your using and what is the overall ready to fly weight if available. Thanks in advance.
Terry
Terry
