View Full Version : JRvent50 Noob
gouki74
03-28-2008, 10:59 PM
hi! i recently got myself a used venture50. i have an OS hyper50, 401+9353 and brand new ds821 for the swash. i have'nt flown it yet. i'm new with heli's and i would like to know what i should check for on my heli. so far, all i have done is tighten the tail belt.
the seller hovered it for about a minute to show me everything is working properly, but since this heli is'nt brand new, i want to check with other jr heli fliers what i should look out for. thanks guys
gouki74
03-28-2008, 11:01 PM
oh and where can i get parts for the venture50 aside from horizonhobby and advantagehobby? thanks again guys! i can't wait to try out my heli! i have read nice reviews on the venture50 and some negative ones. how has it been with you guys? :))
bfireman
03-29-2008, 09:40 AM
Hi,
I have aventure 30. So far I have gotten all my parts from Horizon Hobby. Mine is new, but I did have a broken part and they replaced it for free. I even sent back a used brushless motor and speed controler that was in a crash. They even replaced it for free. Didn't even charge me for shipping. I have heard others complain, but I can not they have been good to me.
Alan
gouki74
03-29-2008, 08:28 PM
that's good! i will try horizon hobby then when i do need parts. at least they're the jr distributors so that's good news for me :) i was looking for upgrade parts but the site some refered to are in japanese only :(
terrybeb
03-29-2008, 08:48 PM
ds 821's are somewhat too weak for a 50 size. I had them on my JR AirSkipper 50 and one failed. My instructor was flying it. It came down in a muddy field. Not too bad of a crash seeing how high it was up at the time. I ended up getting the ds 8311's for the swash. You may want to do the same. I know that's not what you want to hear and you may be fine with yours.....that was my experience. On the web site it states that the ds 821's are for 30 size heli's. Having said that 10 years ago they would have been better than what was out at the time.
BarracudaHockey
03-29-2008, 09:05 PM
It's not about the torque or speed, they are susceptable to vibration problems in larger nitro helis and JR specifically warns against using them in a 50
gouki74
03-30-2008, 11:02 PM
and i thought them 821's will be ok for me since im new,all i will be doing is hovering my heli. i had hoped they were ok. changing them will be my next upgrade :) i tried my heli yesterday and im happy with it. i just need to check and clean my engine and track the blades and it'll be ready. my rx batteries got low before we could fix the tracking problem so i called it a day. i still have to check horizon hobby for parts :)
thanks for the input guys! i really appreciate it!
centuryman
03-30-2008, 11:19 PM
I have a venture 50 the tracking was a constant problem till i put carbon blades on it. also the 5mm spindle needs to be upgraded to a 6mm with thrust bearings.mount the tail srvo on the boom and the tail will be locked in a lot better.definatley don,t run those seros , the swash hooks directly to the servo, no bell cranks to absorb vibs,also run aluminum arms and the need to be longer .i run 25mm from the center and then you can get 14/14 pitch and still have travel left for cyclic at both ends. i spin mine at 2450 hs and it works good for 3D.I use it for my warm up bird because the head is so smooth ,it builds your confidence for my other birds that can be handfull.
gouki74
03-31-2008, 01:46 AM
yup i hav my tail servo mounted on the boom. i use FG blades, im still saving for new servos and th CF blades will be next. is there a particular 6mm spindle shaft i should look for? the time it hovered for when we were tracking the blades were great, it required very little stick input to make it stay place. ME SO HAPPY!
gouki74
03-31-2008, 01:50 AM
the venture50 i think will be a very good trainer for me. i already feel confident even though i know im not good enough. seeing how stable it was, it made me think i can handle circuits easily although i know i can't yet :) i have to take my time and be patient (like what everybody is telling me )
terrybeb
03-31-2008, 08:08 AM
It is a good machine when set up correctly my instructor has one that he uses for practice as well. Your right about it being a smooth flier, you wont have trouble with the machine itself but you WILL get into trouble with it's orientation in the air doing circuits if your not used to flying. The trick is learning how to recover and go into a hover till you can get your bearings back and then continue on.
centuryman
03-31-2008, 11:51 PM
I used the 6mm upgrade kit for century hawk,will need to make some spacers though. the 6mm spindle tightens up the dampers nicely, plus the kit comes with thrust bearings.W ith the long flybar and the 3D paddles it is a good combanation of a stable smooth hovering machine, But kick up the headspeed and it will flip, roll, tick toc with the best of them. Also k&b tail blades. the stock ones are soft witch is graet for learning cause they can take some ground taps. But for 3D they don't hold.Heliworld is where i got my 6mm upgrade kit. $39.99
centuryman
04-01-2008, 12:01 AM
I found the hardest part of cirtcuts was the turn coming back at myself.I found when i first started doing circuits thst doing a split s at the end of the feild was easier for me.It was just a little mind trick that helped me.I would drop the nose and take off from in front of myself and climb to about a hundred feet and then roll the bird inverted and simpley pull back on the elevater and whala it was coming right back at me. then i would allow it to dive slightly to get speed up for the corner in front of me.I found when i first started cicuits it was hard to maintain speed in the corners and this trick helped me .Before i knew i was doig figure eights and zipping around quite fast.It's a cool feeling when you start doing some highspeed low circiuts. Good luck.
gouki74
04-01-2008, 09:39 AM
i'm getting excited about doing fancy flying! but i have to keep cool at it and not get overconfident :)
unfortunately i broke off the head of the socket head screws for mounting the engine to the frame. this it the third time. the first time i broke it off, th 2nd time i stripped the threads and now i broke it off again. i think i have been tightening it waaaay too much. i ran out of them hex screws so i can't fix my heli til i see my friends again (i hope they have spares) :(
thanks again guys! i'm glad i did'nt sell my heli two weeks ago :)
gouki74
04-03-2008, 08:50 AM
i have my venture50 ready! yipee!!! i was able to track the blades only after two tries! and the engine is working great! i will do my final adjustments on the hyper50 this weekend when i meet with friends. everythiong has been going smooth with my used venture50. i just hope i don't crash it on my first hover try :)
terrybeb
04-03-2008, 09:23 AM
Just remember to breath.....after that it's all good.;)
bfireman
04-03-2008, 12:30 PM
When you get ready to lift off. Be slow on the throttle to see what is going to happen so you are ready to react. Good luck
Alan
gouki74
04-03-2008, 08:35 PM
thanks guys! yes i will try to lift the heli really slowly. it was very intimidating spooling up the engine in our garage, it was loud. it was like the throttle stick was connected to my face. every time i push the throttle, an uncontollable grin in my face comes out which goes away when i throttle down :))
gouki74
04-05-2008, 07:19 AM
i just got back from the field. it seems the throttle stick has to be 3/4th up before my heli lifts off. i have it at -5 to +10 but maybe it changed after all the blade tracking done on it on two occasions. i will check my pitch later. has anyone had this problem before?
all in all, i was happy about my little flight awhile ago, but the 50hyper eats too much nitro. i'm using 15% cool power and my valve is on the rich side and the flights are around 5mins more or less
gouki74
04-05-2008, 08:58 PM
after inspecting my heli, i saw my pitch was at about +7 full throttle. i readjusted my links and can now go to +12. i reconfigured my pitch curve to -5 to +12. is that ok? my belt also was waaay too loose. i don't know if the belt needs changing or the boom shortened bacause i adjusted the belt a little while back before my first engine tuning. i tightened the screws that holds the boom well, and will check if it still loosens up after tomorrow.
i will go try flying again tomorrow. wish me luck guys! and you're right! after my heli lifted off and for a couple of seconds i had it hovering at almost full stick, i think i forgot to breathe! :)
gouki74
04-07-2008, 08:21 AM
i had my first problem with my heli. the hex adapter came off. that's why my clutch bell was riding up and down the clutch and was coming in contact with the inner edge of the clutch. i was having problems starting my heli at first before it came off awhile ago. it's a good thing putting it back was'nt a problem, it was very accessible and i did'nt have to split the frame :)
can anybody tell me what else to look out for? thanks again :)
gouki74
04-11-2008, 05:57 AM
i also failed to notice it, but i think my venture50 is really tail heavy. im using a 2700mah nimh rx pack and the rx is mounted way in front with the rx battery pack. what else would you suggest i put to balance my heli out? i thought about getting size C rx packs to make the front heavier to balance it out. is this common with venture50's? or just mine? thanks
centuryman
04-13-2008, 01:30 AM
I get 6 minutes hard 3D and 7 minutes forwsrd flight on mine witha 2oz headrer tank. There is set screws in the frame to hold the tail belt from looseing up Are your's tight?
12 degrees works . depends on your throttle settings and your collective management.I use 11 in normal and idle up 1 and 14/14 in idle up 2 for 3d flying with lots of collective management.and lots of throttle.
Lots of red loctite on that coupler and it still comes loose .Must be bad desighn.
And yes they're a tailheavy bird especially mine with the tail servo on the boom. i have a 3700 receiver battery and still tail heavy.and the fuel tank placement doesn't help as it uses it,s fuel it gets worse.Fortanetly i never hover it except when landing..
And yes it has a small tank the venture 30 and 50 are almost the same heli and when they stuffed a 50 in it they neglected to install bigger tank.Run a timer 6 minutes comes up fast when your haveing fun. all this talk about it's fault's is getting me depressed.It's a good thing it flys Awesome.Perfect for learning new manuvers with that smooooth head desighn. It's a great warmup chopper to get the cobwebs out befor i fly one of my twitchy 3D choppers.Don't worry abou the balance just trim it and fly. It's just going to change as you use fuel anyway. Keep tourqeing the starter coupler. keep an eye on the tail belt if it came loose once it could happen again and cause a crash like i said check into those set screws they're supposed to prevent that.
gouki74
04-13-2008, 10:53 PM
i guess thats why some helis i have seen have their tanks under the main rotor. i didn't figure that out earlier. i guess i have to try to learn fast from just hovering to FFF or circuits :) easier said than done though :(
that's fine with me but the hex adaptor coming loose always is getting on my nerves. i will try to have a machine shop put a dimple on the shaft where the cup goes to so the set screw sets in the dimple. i hope that will fix the whole hex adaptor coming loose problem. thanks again! i wonder what problem will come up next?
centuryman
04-14-2008, 08:55 AM
All my other helis run the tank under the mainshaft for that reason,plus you can se how much fuel you have left in flight with out landing andrunning up to it to check,
The venture is a good heli for a noob. Very stable and smooth.Most helis have there little problems to work around,untill you get into the high end ones and even some of those have issues such as the trex.
You don't need a machine shop for the shaft. just use a bench grinder to flat the shaft better then clean everthing with contact cleaner or simular and then use green loctite on the shaft aswell.laeve to set up for 16 hours.set the heli upside down so any extra loctite deosn't get into the bearing.You will need to heat it up in the future to remove it.
If green loctite doesn't hold it ,nothing will.
For me the biggest issue with my venture was blade tracking.when i install the 6mm feathering shaft and larger bearings,the problem went away.I think the bearings fit tighter in the blade grips.
I have a stock 6mm headblock and grip assembly off my gohbee phazor that i've been thinking of installing.the grips are of the same desighn and look to be a much better quality.As i said before I think the venture was origanally desighned as a 30 and they just stuffed a 50 in the same bird with minamal upgrades.