RE: Introducing the new 90-1.20 Yak QB
yes i did and it was fine. some people have used the pitts and said it was quieter. but the stock muffler was loud but not to bad.
Posted on: 11/15/2009 10:37 PM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=9256598

RE: Introducing the new 90-1.20 Yak QB
quique had a video of one of his planes with that motor and pull out was very slow. tuned pipes might be the way to go but that would include more weight and modifications. the mld 28 is a great motor for this plane. and maybe even the dle30 but not sure what the weight is. by the way i am going to sell my mld 28. just got back from cermark with a check up and it's ready to go. $200.
Posted on: 11/13/2009 1:04 PM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=9251117

RE: Introducing the new 90-1.20 Yak QB
there was someone that posted about that engine along time ago and said the power with that motor was not that great. especially for the cost of the engine.
Posted on: 11/13/2009 11:44 AM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=9250935

RE: MLD-28 gasoline engine
[quote]ORIGINAL: GTAJAY i'm currently running a 16x8 apc for break-in i want to switch to an 18x6 what prop would you reccommend. i want a good prop for 3d [/quote] i thought the vess 18/6 was just a great 3d and all around prop. i tried a 3w 18/8 and it was ok but way to fast for my likeing and was hard for me to find a good hovering throttle position.
Posted on: 10/25/2009 3:01 PM by Author "jamesrxx951" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=9200910

RE: Introducing the new 90-1.20 Yak QB
i bought the carbon landing gear for this yak and there was no weight advantage. it is the exact same weight as the stock gear. the big difference is the carbon gear is alot stiffer. i liked the stock aluminum gear better.
Posted on: 10/16/2009 12:30 PM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=9178061

RE: 150cc AW Yak 54 burned to a crisp
if you were shot down from no fault of your own you home owners insurance should pay for the loss. i had a friend get shot down and they covered it. i called my insurance agent and he said my planes are covered aslong as i don't crash it.
Posted on: 9/30/2009 2:56 PM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=9136251

RE: Introducing the new 90-1.20 Yak QB
one thing you need to check is, is the standoff distance the same or very close to the dl and mld? the mld justs fits with not much room to spare.
Posted on: 9/9/2009 10:56 PM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=9083108

RE: Introducing the new 90-1.20 Yak QB
the mld 28 is still a great choice. plenty of power to spare. im sure you cant go wrong with either engine but i have had the mld and was very impressed. just make sure with either engine you purchase get it from cermark, or cheif for the mld or get the dl from a us distrubutor.
Posted on: 9/8/2009 8:00 AM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=9078238

RE: Introducing the new 90-1.20 Yak QB
cool wickedwaggy i think you will find this is a fun plane to fly. good luck with it and burn some fuel.
Posted on: 8/13/2009 8:59 PM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=9014589

RE: Introducing the new 90-1.20 Yak QB
sorry for the late reply but didn't notice any difference. you still have to tune as normal. but being that top end power increased i would have to believe consumption had to alittle but i still used the stock tank. i have a perry pump on all my saito's what a difference.
Posted on: 8/13/2009 8:57 PM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=9014583

RE: MLD-28 gasoline engine
man thats pretty good. i didnt think a lipo and reg could be that light thats awsome! i might have to do that. ive been thinking of changing out my nimh out on my 50cc yak.what brand reg do you use?
Posted on: 8/6/2009 12:43 PM by Author "jamesrxx951" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=8994980

RE: MLD-28 gasoline engine
i would amagine that it would start to miss fire or just quit. jimeni what does your ignition set up weigh? i use a 1500mah jr pack thats 4.8v just under 4oz
Posted on: 8/6/2009 10:00 AM by Author "jamesrxx951" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=8994560

RE: MLD-28 gasoline engine
i always suggested using a 4.8v battery on ignition. you will gain no performance difference going to a 6v battery. infact in therory 4.8v will generate less circuit board heat than 6v thus help keeping the circuit board in good working order. you may get alittle more flight time out of a 6v battery than a 4.8 because the battery will have more reserve. i mean this by the ignition wants a certain amount of energy to run say .5 amp at 4.8v. so if it is at 6v it has a higher voltage so it will require alittle less amperage say .4 amps. it's not exact and if you need exact im sure i can figure it out for you but i think you get the big picture. hope this helps
Posted on: 8/5/2009 10:55 PM by Author "jamesrxx951" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=8993720

RE: Introducing the new 90-1.20 Yak QB
here is mine when i had the saito 150 in it. install a perry pump huge improvement in power.
Posted on: 8/3/2009 10:24 PM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=8987789

RE: MLD-28 gasoline engine
if you have another battery to try just use that. then you can eliminate the entire battery all together. you did say that the spark plug boot was pushed in all the way, were it's almost to the hex portion of the spark plug. it should be very tough to install and snap into place.
Posted on: 7/22/2009 8:20 AM by Author "jamesrxx951" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=8954175

RE: Introducing the new 90-1.20 Yak QB
[quote]ORIGINAL: gonzoman Let me know how much power you need for hoverin this beast. That's the setup I'm looking at running. [/quote] under 1/2 throttle and plenty of pull out. mine came in at 10lbs 8oz.
Posted on: 7/21/2009 3:28 PM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=8952374

RE: Introducing the new 90-1.20 Yak QB
you are going to like that mld 28. great power. install a vess or xoar 18/6 prop and you will really like the pull
Posted on: 7/21/2009 2:21 PM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=8952219

RE: Introducing the new 90-1.20 Yak QB
i forgot to say that i check the cg inverted with a breath of pressure
Posted on: 7/21/2009 1:00 PM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=8951958

RE: Introducing the new 90-1.20 Yak QB
[quote]ORIGINAL: yakov jamesrxx951 - Talking about CG...I set mine at the recommended 3 3/8''. It seems to be really touchy on the elevator set on low rates with 50% expo. Elevator was set at 1'' travel on low rates. The plane seems to ''Porpoise'' like it is tail heavy. Any thoughts on how to adjust it to make the elevator less sensitive? [/quote
Posted on: 7/21/2009 12:59 PM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=8951954

RE: Introducing the new 90-1.20 Yak QB
i set mine about 1/4 back from recomended and i liked how it flew at that mark. just a breath of up elevator inverted.
Posted on: 7/20/2009 4:09 PM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=8949431

RE: Introducing the new 90-1.20 Yak QB
there was another guy here that said his came in real tail heavy also. how much does it weigh.
Posted on: 7/16/2009 7:42 AM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=8937698

RE: Introducing the new 90-1.20 Yak QB
it is true the metal gear servo's are more money but once you get into the larger planes like this for example it is the price we have to pay. if not it's a short term investment. i would rather spend alittle more and insure that this plane won't go down due to equiptment failure.
Posted on: 7/15/2009 7:16 AM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=8934928

RE: MLD-28 gasoline engine
i would definately check the fuel line and the clunk inside the fuel tank. especially if it quites at the same time every time.
Posted on: 7/14/2009 9:12 PM by Author "jamesrxx951" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=8933958

RE: Introducing the new 90-1.20 Yak QB
well i would have to imagine that they recomend that motor because it is good enough to fly it and it is safe for the airframe. the servo's i would have to say that it is what they determined what would be the minimum choice to use on the control surfaces that would be safe and reliable. we always go over kill on engines, including myself but try to save money else were. servo's are so criticle to keeping an airplane alive and in one piece just don't see a need to try the cheaper route in servo's when you can have a $1000 wrapped up in this plane.
Posted on: 7/14/2009 3:16 PM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=8932895

RE: Introducing the new 90-1.20 Yak QB
[quote]ORIGINAL: jdkxtreme i had a control horn pop off of my yak at it was at higher speed and i almost lost the plane because of the flutter I guess even the things they supply break.. [/quote] kinda scary when that happens isn't it. it feels like eternity trying to get it down. what were you talking about with the last post. a saito 100 in the yak? and buying the servo's from aeroworks? didn't quite understand. if you are i wonder how the saito would even fly it. it would have to be all she has to get off the ground.
Posted on: 7/14/2009 2:47 PM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=8932831

RE: Introducing the new 90-1.20 Yak QB
its not the hard core 3d at zero airspeed that kills servo's are far as flutter its normal higher speed cruising. the 3d substall manuverse if you don't have a large enough servo just will have a hard time moving the control surface. blow back. the cruising is always appling force on that control surface so you need the torque and the stronger gear train to keep everything exactly were it should be at high speed. i had a control horn pop off of my yak at it was at higher speed and i almost lost the plane because of the flutter. i was able to get it to a slow speed and the flutter was gone. and landed safely
Posted on: 7/14/2009 2:21 PM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=8932753

RE: Introducing the new 90-1.20 Yak QB
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXHKB0&P=ML they still are about the same power as the ds821. aeroworks recommends 130 oz servo with metal gear. i would stick to that.
Posted on: 7/14/2009 2:16 PM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=8932741

RE: Introducing the new 90-1.20 Yak QB
i do like the ds821 servo's. i have them on all my .60 sized planes and are absolutely great. no problems. even handle a high speed blender on my .60 aw edge
Posted on: 7/14/2009 1:52 PM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=8932667

RE: Introducing the new 90-1.20 Yak QB
no war here[:D] but are you sure that it is 8lbs, it's suppost to be 5-5.5 lbs and im sure the ailerons are way bigger. this yak has a 72" wing span and the mojo 55". http://www.swanyshouse.com/mojo60/mojo60.aspx unless im looking at the wrong one. the mojo calls for a 70oz servo while the yak calls for a 130oz and 180 on rudder.
Posted on: 7/14/2009 1:50 PM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=8932662

RE: Introducing the new 90-1.20 Yak QB
the aeroworks yak is not a .60 sized airplane it is a 90-120 sized and almost twice the weight. and larger control surfaces.
Posted on: 7/14/2009 1:09 PM by Author "jamesrxx951" in the forum "Aero-Works Support"
http://www.rcuniverse.com/forum/fb.asp?m=8932532