800mZero

My Feedback: (2)

the work is completely exterior! The bracket slips over the wire on the and screws to the bottom of the plane. See hereyou just slip it over the wire you already have coming out of the bottom of the plane.

http://www.shopatron.com/products/pr...=376/101.0.1.1

flyboy0608

Wow,..that looks like it will make a big difference in stability for the tail wheel. Now that I see the picture, I remember seeing them in the hobby shop. I will get one this week when I stop by the shop. You have been of great help. I truly appreciate it. Thanks ! ! ! Hey,..By any chance, do you own a DX7,..Every time I turn on the DX7 and turn on the plane, it actuates the flaps and brings up the gear. I can't seem to get it to stop.

800mZero

My Feedback: (2)

yep i doget all you gear and flight surfaces set to you desired settingie flaps up and gear downrebind your reciever-whola!

99GrandTouring

Guys I need help with my hanger9 blue nose..
I purchased it used and its my first "big" plane (to date largest is a .52 fourstroke) and my first warbird..

Here are my problems.
1. The wheels broke, so I had some 3.25" dubro laying around and tried to use them but the axles aren't long enough. What wheel other than the hangar9 ones will work (don't want them again)

2. The cg is set at 4.5" but when taxing the thing wants to tip nose over constantly even with up elevator, any cure? (grass runway)

3. I'm running a 1.20ax with a 15x12 prop (I got the plane used and thats whats on it, never flown) and it scoots!! Way to fast in fact can't slow down enough for safe landing... What size prop should I use with the 1.20 2stroke? Manual reccomends 15x10-12 and 16x8-10.

of the 4 flights I got on it I love it though, as long as I can get these problems ironed out.
Thanks!

oldtimer4759

hi,
it is a good model, I had one, but it died, no fault of the model, I am still thinking of getting another one, it is a 1/7 scale, or close, which fits in with my H9 Spitfire.
as to the engine, I have an OS 120 AX in another model and use an APC 16x8 Prop, fuel 10% nitro 17% cool power, with that prop it will be very close to the recommended RPM.
as to nosing over, dont touch the C of G, try moving the fuel tank back, I had a 120 FS in mine, with a 2 oz header tank right up the front, level height with carby, then another tank back on the receiver tray, that will make it slightly less prone to nosing over, it moves the fuel weight out of the nose, something else you can do is to put a small spacer under the front of the U/C mounts, that will tilt the wheels forward slightly when they are down.
it is a good model, beautiful to fly, nice to land with full flaps, just be careful of your elevator throws, if you use too much throw it will drop a wing and roll upside down very quickly. (snaps) then you have problems.
also be careful if the noise stops, keep the airspeed up, they dont glide very well.

happy flying, Oldtimer

flyboy0608

Hello,..I just read your ad. I too just recently got a H9 blue nose and I am about to install the engine. It's a coincidence that you happen to have yours with an 2 stroke 1.20AX. I too am putting in the same engine and I am wondering how your engine fit inside your cowl. Does yours have a pitts muffler ? Did you you or who ever build it have to cut out any of the cowl to make it fit ? I am running it with a inverted pits muffler but i am not sure if the muffler will fit inside the cowl and if so, how much of the cowl would have to be cut. My muffler just arrived at the hobby shop and I have to take to kit and engine for a test fit tomorrow, but your input on how yours fit would really be appreciated. Maybe some pics if you can.

Also,..Everyone tells me this engine would make this plane fly like a rocket,....how have your landings been ? Has the speed given you trouble landing ?

Thanks for your input.

Alex

99GrandTouring

With the 1.20ax it is overpowered.. with 15x12 prop at 8krps it will rocket out od sight... the bad part is it doesn't land well it flys way to fast at idle. I can fly the plane at a little less than 1\4 throttle.
I'm using the stock muffler in its "pitts" configuration and the cowl is butchered to fit.

flyboy0608

I see,.....I hope that the PITTS muffler I ordered does not need for me to butcher the cowl. If it does, I refuse to do it. I will return the 2 stroke and buy the Saito 1.25. Wow,...1/4 throttle hah??? Is this with your Flaps fully down ? I hoped the flaps would slow it down enough for a controlled landing.

kqutob

My Blue Nose is still in the box so I cannot voice an opinion based on experience , however what worries me about the 120ax is not only the overpowering factor (the 120ax gives almost twice the power required ) . From the wood and build quality that I saw I fear the 120 may cause a great deal of stress on the integrity of the plane's structure . You see this engine in action and you'll know what I'm talking about. I already have an OS 110-p waiting to go on this but if I was to go with a 2s I would choose the 90fx or the 95 ax. Putting the H9 P-51 next to its TF counterpart you cannot help noticing how much more solid and strong the Topflite build is. The H9 Denight has the same build quality as the Blue Nose and I had to stengthen many parts with fiberglass and resin.

oldtimer4759

hi,
the others are right, a 120AX is way overkill, the model was designed for a 60 2st, I had a Magnum 120 F/S in mine (no lead) and that was heaps of power, a 120 AX has far more power than a 120 F/S. a 15 x 12 prop is way too fast for this model, an APC 16 X 8 on the 120AX is a good combination and will let the model slow down a lot more for landing.
beef up your firewall with F/Glass or something, inside and outside, I had a flex mount system for my engine as well,

if you go back through these threads you will see the wheels are a common problem, most of the models weights are 11 lb +, the "glue" used to put the model together seems to be suspect

a 90 2st would be a far better option, still give plenty of performance.

happy flying, Oldtimer.

flyboy0608

I understand. I was just wondering cause HANGER 9 states that it could go with a 60 to 1.20 2 stroke. Also,..It just seemed like no sense to me when an 95AX was the same price of the 1.20AX. I am getting a deal on the bigger engine for the same price,..atleast that was my train of thought at the time. Anyway, so you are saying that the 1.20AX 2ST would be OK with the 16X8 prop ? I like to use wood props due to safety issues. I had a bad accident with an APC prop with an OS91 ( almost took my hand off ) and would like to stick to wood if I could. Can I use a wood 16X8 instead. Would this slow the plane down a little and make it easier to fly?

99GrandTouring

I can definately vouch for securing the firewall...
On my first flight with the mustang I couldn't get it to slow down enough even with flaps, ended up running out of fuel about 30yards out and to low, put her down really gently considering, into some tall weeds. Just the weight of the engine and the impact pulled the firewall clean off, didn't have to replace anything just cleaned it up, used triangle stock to help reinforce and epoxied the firewall back on.

Also pulled out 1 landing gear as I didn't retract them before it went in....

I can't find a 16x8 locally but I did get a 15x10 I'm gonna try...


I got my entire plane servos, engine and battery for $300 from a local guy who decided he didn't want it... Was too good a deal to pass up. But if I had it to do from scratch and had the money there is no doubt in my mind I would go with a 1.204stroke or a WAY smaller 2stroke.

My plane with the 1.20 will go vertical no problem and I don't even know how much it weighs..

flyboy0608

Wow,,..you were really luck on that crash landing. And no,..I wouldn't have passed on it either. I have already put in about $800 on this plane alone. Man,..scary stuff there. I will try and get that 16x8 prop and see what happens. Will let you know with updates. Thanks ! ! 1

ton2di

My Feedback: (182)

Wow, You're lucky to have a 2 stroke OS 120ax in yours. I have an OS 120FSIII in my TF and I wish it had more speed to spare. I'm turning an apc 14x12N. Same thing on landings... it won't slow down a lot (well, that's excitement for me). What rpm were you turning it at 15x12?

oldtimer4759

hi,
a 120 AX style of engine is too much power for this model, but the radios these days have a throttle on them, so be careful with full power, as to the APC 16 x 8 prop, I use that combination on an Excelleron 90, it really suits the model, I have tried different props, but the APC seemed to be the best.
Prop sizes are only an indication, they vary a lot by brand, I tried a JFX wood prop on the 120, 17 x 6 bigger dia, smaller pitch, same numbers, but that prop was WAY TOO MUCH for the engine.
when I say same numbers, a very rough rule of thumb is double the dia and add the pitch, eg, 16 x 8 = 40, same for the 17 x 6, but it was a totally different prop on the engine.
so for JFX brand, try 16 x 6 or 15 x 8, just check the RPM, for an OS 120 AX it should be about 9K, max.

a prop and engine combination that work well in model "A" might not work as well in model "B", if you are married, just think, one outfit compared to a diff outfit, diff mood.

happy flying, Oldtimer.

RodanAZ

Ooops, wrong thread...

flylower

Is 12 gauge wireing and ultra deans connectors sufficient to carry the current required for a 110 brushless electric motor using two 4s 5000mah batteries in series? This is what I plan to use in my Blue Nose, if I ever get it finished.

Thanks

800mZero

My Feedback: (2)

yes!

flylower

Thanks 800mzero for the reply (and the one on rcgroups).

flyboy0608

Hey guys, just to give you an update on my attempt to put an 2st 1.20AX on my blue nose,..well it didn't happen. The inverted pitts muffler that enginetakes is too big to fit inside the cowl. I would have to cut away too much of the cowl and it just would not look good. So I decided to go down to the 95AX. The pitts muffler for that one is way smaller and fits fine. I was advised though to run the engine sideways instead of inverted. They tell me 2 strokes don't idle well inverted. So I am running it sideways, I will have have to cut a hole in the cowl for the cylinder head to come out for cooling but at least the cowl is not butchered like it would have been with the 1.20ax 2 stroke. I just mounted the engine last night and so far everything looks good. I think the 95ax should provide good power for this plane. I will keep you guys posted.

On another note, I managed to strengthen the tail wheel on this plane which is one of the weakness of this model if you asked me. A tail wheel bracket, some balsa wood and Zpoxy left it ready for any landing,.......well,...not really any landing but you get the point,.... Feels nice and strong now.

jet22b

flyboy0608,

If you want to install your 95AX inverted on your Blue Nose P-51 and save your cowling, install one of these on your plane. ( see link below ).
http://www3.towerhobbies.com/cgi-bin...&I=LXRYK2&P=ML
When I had my Blue Nose with a OS 1.20 FS, I had this setup and let me tell you, it was a joy!!! On my system it had it own battery. A small 7.4V 2100mAh 2 cell lipo that last for the whole day of flying. I had mines setup this way, when I go to low throttle, the plug was hot, high throttle, the plug was off. The only holes I had to cut in the cowling was for the valve head cover and the muffler!!! See what you think!!!

Sonny
aka
jet22b

flyboy0608

Hey, thanks for the reply. I was told about this system at my hobby store. I just decided it would be cheaper this way. I would have to buy the plug which was around fifty some dollars plus the battery to run it. For that i would have put an extra $100 and bought the Saito 125. I just can't invest more money into this plane. I think I can live with the small cylinder had hole in the cowl. But i appreciate your input.

jet22b

flyboy0608,

I know your pain!!! Last night she saw me looking at Tower website about the Top Flite B-25 ARF and I wake up today to find all my cards and checkbook missing!!!
I have to remember to lock my workshop door when I am looking at new planes to buy!!

Sonny
aka
jet22b

flyboy0608

Jet22B,

That is hilarious ! ! ! ! I guess I don't feel that bad about my wife now.........LOL. I guess All, or most of us who are married and are in this expensive hobby have a similar story with our spouses. It is an expensive, but awesome hobby. Sometimes we have to know when to stop and hold back. I think, the hole in the cowl right now is better than another hole in my checking account ! ! ! But i feel good about how it is going to turn out so we will see. I will post pics when I am done.

flyboy0608

Jet22B,

That is hilarious ! ! ! ! I guess I don't feel that bad about my wife now.........LOL. I guess All, or most of us who are married and are in this expensive hobby have a similar story with our spouses. It is an expensive, but awesome hobby. Sometimes we have to know when to stop and hold back. I think, the hole in the cowl right now is better than another hole in my checking account ! ! ! But i feel good about how it is going to turn out so we will see. I will post pics when I am done.