RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       

All Forums >> RC Airplanes >> ARF or RTF >> RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
Page: <<   < prev  51 52 [53] 54 55 56 57 58 59 60   next >   >>  

Login
Message << Older Topic   Newer Topic >>
RE: Top Flite B-25 ARF (Tecnical, tips, suggestions) - 2/11/2008 10:26:32 PM   
morganew


 

Posts: 24
Joined: 7/5/2007
From: Brooklyn, NY, USA
Status: offline 		cherrera26, et al,

Can someone please elaborate on the "bad" reviews out about the Ultimate 70 that replaced the OS 70 Surpass II. I've seen some praise of this engine earlier in this forum, corroborated by kproton if I remember correctly. I'd like to know if the concensus is that the Ultimate 70's are not worth the cost or are poor performing in general. I have 2 of them, unopened. Thanks for the clarification

(in reply to cherrera26)
       Post #: 1301

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions) - 2/12/2008 12:37:30 AM   
lowell


 

Posts: 21
Joined: 11/1/2004
From: East Wenatchee, WA, USA
Status: offline 		Has anyone built this aircraft utilizing the RCV 90 SP engine ?

(in reply to morganew)
       Post #: 1302

RE: Top ... - 2/12/2008 12:46:12 AM   
normandouellette


 

Posts: 319
Joined: 3/12/2007
From: Laval, QC, CANADA
Status: offline 		Hello Mtaboram,

About the brakes, the wheels are Robart 10 spoke aluminium wheels and you order 2 of them, they cost 61.10 us$ each and the part # is 13840A2 x 2. The proportional air valve and disc brakes comes as a kit and the kit# is 140SET, and it retails for 244.35 us$. You should call Doug Scatterday at robart directly (630 ) 584 7616 as this is your best bet for specialized items such as this. He will take care of you.

For the noze wheel you will have to paint the hub of your 2.75 inch wheel silver to match the aluminium wheels. I put the brakes to test risking the 22 lbs B-25 on a do or die roll to the wall and it stopped well on time.

Guys please about the easy fueler from great plane, I have 27 of them installed on my planes for fueling all my engines and never experienced a failure. It is much easier to use to fuel your planes. Whoever use this item must be familiar with the system and learn it before using. It can fail if you do not visually inspect the nipple to retract out and test touch it by pressing on it with your fingers to make certain it operates properly. It will never fail in flight unless you performed a visual check after fueling and the nipple did not retract. In any case a malfunction of the fueler will cause a failure on the ground before take off or will not start. This type of failure in less likely to happen than you forgetting to fuel your plane. One should concentrate on proper functioning of control surface and fueling properly and enjoy flying your plane and minimize ground handling and not worry about this item.

In a way the KISS system is sometimes best but I remember when cars did not have electric windows, climate control air conditioning, ABS brakes, traction control on board tv, xm radio, gps...yeah a lot of gizmos but makes the ride so much more enjoyable.

(in reply to mtaboram)
       Post #: 1303

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions) - 2/12/2008 6:29:17 AM   
camdyson


 

Posts: 750
Joined: 7/20/2005
From: Bairnsdale, AUSTRALIA
Status: offline 		Ditto the fuellers - never had a problem and make life much simpler.

BUT......just blew several hours trying to nut out a good way to mount them. The nacelle cover and cowl are both out as I want to remove these when required without disconnecting fuellers (and running in without cowls so they're definitely out). Finally mounted on an aluminium bracket using the existing cowl tab bolts, and access from the rear through louvres - no more holes in cowl.

Oh wait, that's one done.....

Cam

(in reply to normandouellette)
       Post #: 1304

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions) - 2/12/2008 11:40:01 AM   
normandouellette


 

Posts: 319
Joined: 3/12/2007
From: Laval, QC, CANADA
Status: offline 		Morganew,

Never heard of a negative about those engines. They are pumpers and very well suited for the plane. They are also more powerful then the OS70 surpass, lighter and smaller. I beleive that it is misleading and misinformation when one say it is not good. before saying the OS70 ultimate is bad should support his saying by giving the supposed information . To my knowledge there is nothing but a good engine and supported by a reputable manufacturer.

the Os ultimate develops 1.2hp vs the surpass 1.1, so the Ultimate= more power.
The os 70 ultimate is smaller and lighter then the surpass = this is what you whant
Reputable Manufacturer= this is what you whant
The Os 70 Ultimate sounds better Straighit pipe then the others= this is what you whant

Answer = better choice

You have excellent engines and probably the best choice engine for this plane. I used Saito 82's and for the only reason they have more Power. the down side is no Pumps. Had I known about the Ultimate would fly this plane, I would have gone for them. You must run them without the mufflers and cut flush your exhaust pipe to the cowl with your Ultimate. You will have the best sound at the field.

Post pictures ans enjoy your engines or sell them to me!

Normand

(in reply to morganew)
       Post #: 1305

RE: Top ... - 2/12/2008 2:56:46 PM   
mtaboram


 

Posts: 23
Joined: 9/3/2004
From: Tegucigalpa, HONDURAS
Status: offline 		Hi Normand:

Again many thanks for your support. I will contact Doug Scatterday to make my order properly.I really appreciate if you could post some pictures of the brakes air tank installation.

Best regards

Marlon

(in reply to normandouellette)
       Post #: 1306

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions) - 2/12/2008 3:19:33 PM   
sevans16


 

Posts: 229
Joined: 11/16/2006
From: Las Vegas, NV, USA
Status: offline 		as far as the 70 Ultimate goes: (I have never had one), when they were released there were many problems, they were taken off the market for over a year. They were rereleased, all the same numbers so there is no way to the difference between them. Not too many people taking chances on the new release version. They also have a slide valve carb. They are said to be more sensitive to linkage movement, harder to set up a twin engine. They are said to require more effort to get tuned in the first time. I was worried about having apumped motor since this will not be a regular flier for me. So I went with the KISS thought.

_____________________________

AMA# 737516

(in reply to mtaboram)
       Post #: 1307

RE: Top ... - 2/13/2008 2:58:23 PM   
rc74


 

Posts: 42
Joined: 5/26/2004
From: west chester, OH, USA
Status: offline 		I called TF yesterday and told them about not getting the bomb decals. They said they would sending them to me asap no charge. Ron

(in reply to danrc2)
       Post #: 1308

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions) - 2/15/2008 12:33:19 PM   
vercorsman2


 

Posts: 1
Joined: 11/1/2006
From: st jean en royans, FRANCE
Status: offline 		Hi All
I'm fab from the french alps, just received my B-25 a couple days ago, i would say that i'm really impressed of the top quality of this kit. Thank you so very much for sharing information & tips that i'll use for building the kit for sure. All of you guys really did a wonderfull job super detailing this Baby, this is Art!
I hope the kit will be ready for June (as i'm hosting a 8thAF veteran at home every year fo ceremonies here in the Alps).
Krproton what is TF next project? if there's any B-17 let me know that would be great
Best Regards
Fab

_____________________________

Lifemember of USAAF Veteran 94thBombgroup Association

(in reply to rc74)
       Post #: 1309

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions) - 2/15/2008 1:39:40 PM   
sevans16


 

Posts: 229
Joined: 11/16/2006
From: Las Vegas, NV, USA
Status: offline 		krproton- how did the install go with the FS-81@? I got my second engine in hand and retracts should be in the mail(had them on backorder at LHS). Did you use the FS70 drill template? What exhaust header did you use for best fit? I hope to get started on this build soon.

_____________________________

AMA# 737516

(in reply to vercorsman2)
       Post #: 1310

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions) - 2/15/2008 1:48:16 PM   
krproton



Posts: 350
Joined: 8/5/2007
From: Champaign, IL, USA
Status: offline
quote:

ORIGINAL: vercorsman2
Krproton what is TF next project? if there's any B-17 let me know that would be great
Best Regards
Fab


Hi Fab!

Welcome to the B-25 thread and I hope everything goes well with yours!

I'm sorry, but I don't think I'm allowed to reveal what will be the next Top Flite release--well, I could tell you, but then my company would have to kill me! There are a few .60-size and giant-scale warbirds in process, but they aren't ready yet. Personally, I would LOVE to work on a B-17 as you suggested, but these decisions are made by the managers--I just build!

Stay in touch and thanks!

Tim



_____________________________

Tim Lampe
Hobbico R&D

(in reply to vercorsman2)
       Post #: 1311

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions) - 2/15/2008 1:55:12 PM   
krproton



Posts: 350
Joined: 8/5/2007
From: Champaign, IL, USA
Status: offline
quote:

ORIGINAL: sevans16

krproton- how did the install go with the FS-81@? I got my second engine in hand and retracts should be in the mail(had them on backorder at LHS). Did you use the FS70 drill template? What exhaust header did you use for best fit? I hope to get started on this build soon.


Hi Sevans.

Sorry, I don't have any more info about mounting the FS-81 yet because I haven't gotten my new B-25 yet. As you know (and for the benefit of others reading this post), I already mounted my .81s to the included GP motor mounts, but I haven't mounted the mounts to the firewall yet. And I was thinking about using the header pipe that comes with the .70 Surpass because I think it tucks the muffler in even more (than the straight header that comes with the .81). Maybe what I'll do is "borrow" a leftover final sample B-25 I have here at my desk and just fit up the engine to the firewall and nacelle. Then, maybe I can show you how I would mount it and which header I will be using.

I don't know about the FS70 drill template you are speaking of. The way I do it is temporarily clamp the engine to the mounts, then use the Great Planes Dead-Center Engine Mount Hole Locator (GPMR8130)--sorry for an advertisement, but that's what I use to mark the engine mounting bolt holes on the mount.

I hope you weren't waiting for me to mount your engines.

Anyway, I'll see if I can fit the engine up and show you what I figure out.

Thanks.

Tim

Attachments
Click to see fullsize image.
Click for fullsize


_____________________________

Tim Lampe
Hobbico R&D

(in reply to sevans16)
       Post #: 1312

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions) - 2/15/2008 2:00:55 PM   
normandouellette


 

Posts: 319
Joined: 3/12/2007
From: Laval, QC, CANADA
Status: offline
quote:

ORIGINAL: krproton


quote:

ORIGINAL: vercorsman2
Krproton what is TF next project? if there's any B-17 let me know that would be great
Best Regards
Fab


Hi Fab!

Welcome to the B-25 thread and I hope everything goes well with yours!

I'm sorry, but I don't think I'm allowed to reveal what will be the next Top Flite release--well, I could tell you, but then my company would have to kill me! There are a few .60-size and giant-scale warbirds in process, but they aren't ready yet. Personally, I would LOVE to work on a B-17 as you suggested, but these decisions are made by the managers--I just build!

Stay in touch and thanks!

Tim





About revealing what is coming up...

Tim we all appreciate you and will remember you dearly, now let ua know what is coming up, precision please.

Normand

(in reply to krproton)
       Post #: 1313

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions) - 2/15/2008 2:37:40 PM   
krproton



Posts: 350
Joined: 8/5/2007
From: Champaign, IL, USA
Status: offline
quote:

ORIGINAL: normandouellette


quote:

ORIGINAL: krproton


quote:

ORIGINAL: vercorsman2
Krproton what is TF next project? if there's any B-17 let me know that would be great
Best Regards
Fab


Hi Fab!

Welcome to the B-25 thread and I hope everything goes well with yours!

I'm sorry, but I don't think I'm allowed to reveal what will be the next Top Flite release--well, I could tell you, but then my company would have to kill me! There are a few .60-size and giant-scale warbirds in process, but they aren't ready yet. Personally, I would LOVE to work on a B-17 as you suggested, but these decisions are made by the managers--I just build!

Stay in touch and thanks!

Tim





About revealing