RE: New Hangar 9 B-25 (Full Version)

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captainron -> RE: New Hangar 9 B-25 (7/9/2007 11:12:45 PM)

OK, I'm in for one of the new Hanger 9 B-25's. Called my trusty LHS today. My main man there said late August. Horizon has a program called (Fast Forward) where their better retailers get shipped first. He is one of em.

OK, now lets talk gas motors. whos got ideas on what gas engines to put in this bad boy?

DANG! I LOVE THIS HOBBY...............................CAPTAIN RON.



kahloq -> RE: New Hangar 9 B-25 (7/9/2007 11:56:15 PM)

So far, it looks like the rumors about the TF b-25 having a fiberglass fuse are all guesses at this point. There is no mention about it on tower's site, although the preview model from alst december may have had a glass fuse....dont remember. Anyhow, Im still opting for the H9 version at this point.

As far as gas motors, well, the G20's would work fine......but will be rather heavy. There is some place(dont remember who online) that will convert a standard saito 4 stroke to use gasoline. I recall they do it most often to a saito .82 and those are well within size limits for a B-25 of this size....although overpowered :) for the plane......never rally can tooooo much power unless it shakes the plane apart.



captainron -> RE: New Hangar 9 B-25 (7/10/2007 2:27:13 AM)


quote:

ORIGINAL: kahloq

So far, it looks like the rumors about the TF b-25 having a fiberglass fuse are all guesses at this point. There is no mention about it on tower's site, although the preview model from alst december may have had a glass fuse....dont remember. Anyhow, Im still opting for the H9 version at this point.

As far as gas motors, well, the G20's would work fine......but will be rather heavy. There is some place(dont remember who online) that will convert a standard saito 4 stroke to use gasoline. I recall they do it most often to a saito .82 and those are well within size limits for a B-25 of this size....although overpowered :) for the plane......never rally can tooooo much power unless it shakes the plane apart.


kahlog,

I also thought of the G20's, also thought of the evo 26GT's. Either way, I'm goin gas in this bad boy. If you and Rip decide to go also, I think I can get us a nice discount for 3 of em. Thanks for the input. She might end up a little heavy, but she sure is gonna sound goooooooooood!

DANG! I LOVE THIS HOBBY..................................CAPTAIN RON.




kahloq -> RE: New Hangar 9 B-25 (7/10/2007 6:02:41 AM)


quote:

ORIGINAL: captainron


quote:

ORIGINAL: kahloq

So far, it looks like the rumors about the TF b-25 having a fiberglass fuse are all guesses at this point. There is no mention about it on tower's site, although the preview model from alst december may have had a glass fuse....dont remember. Anyhow, Im still opting for the H9 version at this point.

As far as gas motors, well, the G20's would work fine......but will be rather heavy. There is some place(dont remember who online) that will convert a standard saito 4 stroke to use gasoline. I recall they do it most often to a saito .82 and those are well within size limits for a B-25 of this size....although overpowered :) for the plane......never rally can tooooo much power unless it shakes the plane apart.


kahlog,

I also thought of the G20's, also thought of the evo 26GT's. Either way, I'm goin gas in this bad boy. If you and Rip decide to go also, I think I can get us a nice discount for 3 of em. Thanks for the input. She might end up a little heavy, but she sure is gonna sound goooooooooood!

DANG! I LOVE THIS HOBBY..................................CAPTAIN RON.





3 total b-25's? or 3 sets of gas motors? Please keep in mind, there is a shop up this way in greeley called "Things with Wings" that is usually quite alot cheaper then most name brand hobby shops like Hobbytown....and definitely cheaper then Horizon. Please keep us informed though as price comparisons are always good, especially if it results in savings.



wildswan -> RE: New Hangar 9 B-25 (7/10/2007 7:45:08 AM)

I've got my e-flite 46's on order. I like to keep my airframe nice and clean.



LDM -> RE: New Hangar 9 B-25 (7/10/2007 9:37:20 AM)

I am going to try eletric on this baby , twins scare me and this is the perfact plane to take the dip with e-flight



wildswan -> RE: New Hangar 9 B-25 (7/10/2007 1:08:13 PM)

I agree. Putting gassers into this will make it heavier than necessary. Two 52 four strokes would power it nicely although I'm a bit warey that one is most likely to cut and make the aircraft difficult to handle.

I've had lots of success with electric conversions, my latest two are Hangar 9 Spitfire and F-22 Raptor.

Can't wait for this baby, anyone for moving turrets or working bomb bay doors?



kahloq -> RE: New Hangar 9 B-25 (7/10/2007 4:42:42 PM)

bomb bay doors would be nice....except the battery hatch is located in that location. For those using fuel power, it might be possible to alter this and make doors. For those using electric....hmmmm. Will have to see once kits are in hand.
As far as one motor going out on say a twin with smaller .52 or so 4strokes, well, if you hit LVC(low voltage cutoff) with electric motors...say the Power 46's, it'll be the same issue. Make sure you have ALOT of rudder available, but, generally, if a motor goes out on a twin, the idea is to shut down the other one(or briong it to idle) to prevent a yaw into spiral meets ground problem and land the plane quickly.
I know people can fly on one engine, but reacting to one engine out fast enough can be problemtatic(if electric). On a fuel motor, usually there is some warning like weird noise...but not always.

I've got a few twins(electric) and i have had a motor quit. This was on an A-10 where the two motors are quite close together. From the point that the one motor dropped, it took about 3 secs for instability to occur and yaw the plane over into a death spiral. If you can recognize whats happening in those 3 secs, you can save the plane. If not, kill the motor as soon as you realize whats going on and land straight ahead from where its pointing. Trying to bank and such to line up with runway with no power or only one engine on a twin and losing airspeed on a heavy plane is not a good situation.
Hopefully, H9 has designed the B-25 to be a decent floater so power isnt critically required to effectively bring it in. My FSK B-25 does require a little power to land up until touchdown, but my P-38 can glide in with motors off.



wildswan -> RE: New Hangar 9 B-25 (7/10/2007 6:20:40 PM)

Chances of electric motor going vs. IC is less IMO. As long as both motors use the same escs (one each) and they draw from the same battery they will gradually run down the same.

With new electric set-ups I generally fly for a few minutes, charge the batteries up to see what I put back in and then extend the flying time gradually. I tend to leave 25% in the battery pack if I can help it and not run them down completely although I've had a few dead sticks on my Spitfire as I flew on more throttle because of a windy day.

H9 haven't put the user manual there yet, I like to have a good look over and see what I need to shop for.

Any idea what servos it will need (being 80" and 16lb)? I put 3152's in my H9 P-47 150.

Wonder if they will suffer from the same wrinkly covering I am getting with my other H9 aircraft?



kahloq -> RE: New Hangar 9 B-25 (7/10/2007 7:26:02 PM)


quote:

ORIGINAL: wildswan

Chances of electric motor going vs. IC is less IMO. As long as both motors use the same escs (one each) and they draw from the same battery they will gradually run down the same.



Generally yes, IC will cut out more frequently then electric provided the LVC is taken out of the equation. However, please keep in mind.....NO TWO esc's will behave exactly the same. So...two Castle Creation 80 amp esc's(or whatever your using) will not read the voltage exactly the same due to internal tolerances at the manufacturer. One esc WILL cut out before the other if flown close to LVC and neither esc will draw the exact same amount of voltage as the other. One side(meaning one motor) will spin at a slightly higher or lower RPM then the other even with same setup. As long as the RPM difference is not above 500 or so, everything is fine. This also happens with two IC motors. No two are the exact same.

So...as you've said....test fly initially for a short duration to see how much juice was used and due subsequant tests after recharging until you find the max flight time while STILL giving a safe margin avoiding LVC. Running out of fuel in IC motors would be the basic same thing as hitting LVC for electrics(except you can usually reset an electric motor for 1/4 to 1/2 throttle) or set a soft cutoff...recommended.

As far as the wrinkly covering.......one way to counter this is to overspray the plane with a flat clear paint. It does work rather well and lessen the wrinkle effect when sitting in the sun for extended periods of time. I had my H9 Corsair out at the field for 5 hours sitting in the sun and it did not develop any new wrinkles and it was a nice 85 degree sunny day. I had sprayed it with Model Masters flat clear laquer.



wildswan -> RE: New Hangar 9 B-25 (7/12/2007 5:55:09 PM)

Video now posted on H9 site.

http://www.hangar-9.com/Products/Default.aspx?ProdID=HAN4450



danrc2 -> RE: New Hangar 9 B-25 (7/13/2007 2:38:31 AM)

looks really good!!!!!!!!!!! now lets see what top flite will come up with!!!!!



kahloq -> RE: New Hangar 9 B-25 (7/13/2007 3:33:15 AM)

Looked nice. Flew quite well even using those ugly 10x4 PTS(progressive trainer system) squared off props. Mine will use normal MAS 3-blade props and after hearing the plane on the video using 2 x 2strokes.....thats not happening. Defintely using 4 strokes on it.



MAndren -> RE: New Hangar 9 B-25 (7/13/2007 9:24:10 PM)

Guys,

The video shows the plane flying on both the 3 blade PTS propeller and a Master airscrew 10 x 6 2 blade. The one really high speed pass was with the Master Airscrew 10 x 6. The PTS prop will fly the airplane in a more scale like manner, while a 10 x 6 flies the airplane with authority and well above scale performance.

Matt



kahloq -> RE: New Hangar 9 B-25 (7/13/2007 10:16:19 PM)


quote:

ORIGINAL: MAndren

Guys,

The video shows the plane flying on both the 3 blade PTS propeller and a Master airscrew 10 x 6 2 blade. The one really high speed pass was with the Master Airscrew 10 x 6. The PTS prop will fly the airplane in a more scale like manner, while a 10 x 6 flies the airplane with authority and well above scale performance.

Matt


Matt.....has your team attempted to make working bomb bay doors? I'd really like to know if it'll be feasible since the bottom area is supposed to be for batteries for an electric conversion.....though...many of us will be using fuel.



captainron -> RE: New Hangar 9 B-25 (7/15/2007 1:29:52 AM)

HEY MATT, CAPTAIN RON HERE.
I'M STILL THINKING GASSERS. What about the new G20's? Is there enough room under the cowlings for them? They would definetly make this big dog hunt! I know it'll be heavy, but I like the reliability that goes along with a couple of quality gasoline burners and oh! that awesome sound............[:D]

DANG! I LOVE THIS HOBBY............................................CAPTAIN RON.



hdwideglide03 -> RE: New Hangar 9 B-25 (7/15/2007 6:00:07 PM)

quote:

ORIGINAL: Hepdog

Little birdy told me September release[:o] Winter project indeed.

Twin electrics would be nice for reliabilty - but correct the initial outlay would be higher than glow.

Twin glow wouldn't be that bad. I've never had any of my Super Tiger 40's quit on me yet - until I put them in a twin I suppose[:@]


I have the Super Tigre 40s as well in my plane and I am ve ry much considering butying this plane and putting the Super Tigre 40s in it. Only $100 in engines compared to $400+ for two 4 stroke 62 Saitos [[:'(] I have also wanted to build a B-25 and I think this is going to be the one I am going to get. All around reasonable and twin 40s will give it the scale flight. OMG is it at my doorstep yet !!!!!!!!!!!!!!!



kahloq -> RE: New Hangar 9 B-25 (7/15/2007 7:30:52 PM)

Ive got two .46 2strokes on hand, but after hearing the video and what it sounded like with the two 36evo's, I'll go with 4strokes. I already have a .56 saito as well as an rcv60sp....so only need a matching motor.



Hellcat716 -> RE: New Hangar 9 B-25 (7/16/2007 12:00:39 AM)

I believe two YS 63 would be a perfect match.



thevirginian -> RE: New Hangar 9 B-25 (7/16/2007 1:41:40 AM)

captainron,
Don't even think about G-20's. Way too big. And too heavy. A couple good four strokes will do.



captainron -> RE: New Hangar 9 B-25 (7/17/2007 3:58:25 AM)

thevirginian,

Thanks, somehow I knew that was the answer. I've just got gas in my blood now that I've flown my 25% EXTRA 260 with the DA50. SO clean, so reliable.

DANG! I LOVE THIS HOBBY...................................CAPTAIN RON.



thevirginian -> RE: New Hangar 9 B-25 (7/17/2007 12:56:31 PM)

Yeah, I know what you mean. I am the same way. Strictly gas. Would be nice to have a really small gasser, say 60 size or so. I know Supertigre has a 90 size, but prohibitively expensive.



wildswan -> RE: New Hangar 9 B-25 (7/17/2007 11:27:41 PM)

Hi,

For my B-25 I want to put 3 blade props on. What would be the equivalent of a 13x8 APC in a 3 blader?

I'm planning on using the recommended brushless e-Flite 46 motors.

Regards,

Jason



kahloq -> RE: New Hangar 9 B-25 (7/18/2007 4:53:39 AM)


quote:

ORIGINAL: wildswan

Hi,

For my B-25 I want to put 3 blade props on. What would be the equivalent of a 13x8 APC in a 3 blader?

I'm planning on using the recommended brushless e-Flite 46 motors.

Regards,

Jason


APC makes 3 blade props, but, they dont look quite right. You need to go down in diameter one and up in pitch one...so it would be a 12x9 3-blade. I dont think though, that there is such as prop made. However, Master Airscrew makes a 12x8x3 and will look alot more scale then an APC prop. Graupner also makes some nice looking props and they also have a 12x8x3...it is twice as expensive though as the Master Airscrew (you can find them at www.kmp.ca) . The Power 46 is capable of spinning larger props then the 12's though. You'd be better off using a 13x8x3 MAS(master airscrew). This will yield an effective thrust of a 14" two blade. The recommended prop range is 12x8 to 14x10. This would be two blade props....so a 13x8x3 would fit in there just right.



wildswan -> RE: New Hangar 9 B-25 (7/18/2007 7:20:08 AM)

Many thanks for the advice, looks like some 13x8.3's are on my shopping list.



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