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-   -   Top Flite B-25 ARF (Tecnical, tips, suggestions) (https://www.rcuniverse.com/forum/arf-rtf-75/6494380-top-flite-b-25-arf-tecnical-tips-suggestions.html)

timothy thompson 10-25-2007 11:37 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
wow a whip scorpion cool. the motor and esc are top of the line you may need more batts i will do another sim on my ecalc program .

greg hahn used 4 batts total two for each motor. Im attempting using only two it may not be enough power i can always order two more batts. The nice thing is you will never have to worry about engine out problems again. the cowls do not have holes in them and the plane looks better.

the one thing you never want to do is over power a esc they will fry so you look for the total voltage. each S is 3.6v so a 3s pack is 11.1v. my axi setup is ok up to 8s so i may need more packs but the wing loading is low enough to handle the weight.

those spiders are awesome i would love to have them here but the wife says i have enough. i have a black widow and a brown recluse. They eat crickets. i never handle them. I also have tarantulas so tame one is sitting on my shoulder right now.

i love that link i cant read it but they are cool. i like snakes too dont have one as i cant feed live prey im a softie and even save flys in the house

hey lets call this a b-25 spider thread so the mods dont yell at us

timothy thompson 10-25-2007 11:49 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
yes that is the type of system I want. see mine will be heavy as usual. my tf corsair is 35 pounds due to all scale stuff. flys fine at that weight

krproton 10-26-2007 06:24 AM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Flavio,

thanks for the spider link. Maybe I'll save one of the images to my desk top and freak out my wife and step-daughter.:)

Everybody,

there has been considerable talk about electric power for this model. Hopefully we'll get Greg Hahn's notes with a few photos posted on the Top Flite web site today--within the next couple of days for sure. Check in with the Top Flite web site (I believe it's www.top-flite.com). That's where it will be posted.

I don't know of anybody adding sound systems to this model.

I'll see if I can get a brief writeup and/or a few photos of either Greg's or our other R&D engineer's B-25 with their bomb bays and drop mechanisms.

Tim

RCKen 10-26-2007 06:26 AM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 


ORIGINAL: flaviosi

Talking sound systems, I was told Benedini Sound System is great. I did some research on the website http://www.aerosoundrc.com/ and found the sound simply AWESOME!!!
Flaviosi,
RCU's Greg Covey did a review of the Aerosound R/C sound system last month. You can find that review here: [link]http://www.rcuniverse.com/magazine/article_display.cfm?article_id=908[/link]

Ken

pettit 10-26-2007 06:28 AM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Gee, I thought I had a lot to do with getting those gear door hinges to work properly.

My engines are mounted, throttle servos in place and nacelles will go on tonight.

Don't forget to bolt the naceles to the wing before you permanently install the tanks.

Don't ask.

I think the screw threads for the engines will be worn out soon because you have to take the engines off, put them back on, etc.

It's fun work though and I have all weekend to work on it.

Sunday I will be test flying "the other guys" B-25 too.

flaviosi 10-26-2007 09:02 AM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Hi, Ken.


RCU's Greg Covey did a review of the Aerosound R/C sound system last month. You can find that review here: http://www.rcuniverse.com/magazine/a...article_id=908
I've read it, thank you! Amazing the idle sound...

Flavio

timothy thompson 10-26-2007 09:28 AM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
hey ken thaqnks for leaving the spider link up. i wonder if any ww2 B-25 had a spider as nose art. With the sound system and going electric weight will be an issue

flaviosi 10-26-2007 10:43 AM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Hi, Tim!


hey ken thaqnks for leaving the spider link up.
Oops! Did I do something wrong? Wasn't I supposed to send a link? I'm sorry if I screwed something. I just didn't know.

Flavio

flaviosi 10-26-2007 12:35 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Hi, Tim,


i love that link i cant read it but they are cool. i like snakes too dont have one as i cant feed live prey im a softie and even save flys in the house
Try to use this link to translate the text you're interested in: http://babelfish.altavista.com/

I made it a try and the translation, although not perfect, is pretty decent.

See Ya!

Flavio

norm 10-26-2007 12:45 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Hello Tim (Krypton), I am racing with Dick here to finish assembling my B-25, unfortunately I'm slowed down by my glassing and glueing an reinforcing. We should be airborne at the same time even though you guys are one hour behind...

BTW why are you not revealing the meaning of TOPA0950? In my case it is already ordered an will be added to my squadron of the same model.

timothy thompson 10-26-2007 04:55 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
im cutting out my bomb bay tomorrow complete with pics as i go. I have to do this and it will not weaken the plane

krproton 10-26-2007 05:38 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 


ORIGINAL: normandouellette

Hello Tim (Krypton), I am racing with Dick here to finish assembling my B-25, unfortunately I'm slowed down by my glassing and glueing an reinforcing. We should be airborne at the same time even though you guys are one hour behind...

BTW why are you not revealing the meaning of TOPA0950? In my case it is already ordered an will be added to my squadron of the same model.
Hi normandouellette. Don't you guys race too fast. I know this is an ARF and there is less work to do than a kit, but there still IS a lot of work and if you go too fast you'll screw something up or forget something. [sm=wink_smile.gif]

I don't know what you mean by "not revealing the meaning" of TOPA0950. I guess it's the new Mustang ARF and it's shown on the Tower Hobbies site. But thanks for ordering one already![sm=thumbup.gif]

timothy thompson 10-26-2007 06:16 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
im going to outline the area of the bombay with blue masking tape and use a ruler and new no 11 for the horizontal cuts the verticals are what im looking at because i only have one chance at this. i could use a dremel cutting wheel. The scale bay is square inside and i should have no trouble using robart hinges to get the doors set.i will use evergreen styrene for scale details, i will be applying panel lines and rivits. yes im crazy

flaviosi 10-26-2007 06:26 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Tim (Kr),

I'm checking Top Flite's site every 5 minutes to find the article about the electric engine. Do you have any idea on which section Greg will upload it to?

Thanks!

Flávio

krproton 10-26-2007 06:45 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
What up Flav-dog! (sorry about that).[&o]

Greg won't be doing the uploading. He just wrote his notes and took a few pics, then our desktopper team (Technical Publications) turns all that into something "publishable" (something finished, professional looking). Then they forward the finished document to another guy who does the downloading to the site.

Anyway, today at work I saw a proof of the final, desktopped piece, so by now it has probably been forwarded to the guy who does the downloading (or uploading or whatever![sm=spinnyeyes.gif].) Sorry to keep you waiting, but I guess it'll be another work day or two before it appears.

When uploaded, I would imagine it would appear under the "Tech Notice" box on the B-25 page on the Top Flite site.

Sorry to keep you waiting, but it should be available really soon. If you must know the motors used, you might be able to do a search for "Greg Hahn" or something like that and see if he ever posted any info about the gear he used.

Tim


flaviosi 10-26-2007 07:06 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Tim!


What up Flav-dog! (sorry about that).
Be my guest! Be my guest! I probably didn't get the pun/joke, though... My home language is portuguese and in english, well.. I'm definitely not a Shakespeare... :)

Thanks for the info. I'll stop hitting the Site too hard and get some life... :)

Today I called a guy in a LHS and he said they have all the line of Hyperion engines (are they good?) and he was very excited about my project. He even offered to help me mounting the whole thing.

BTW, when I sent him the link for the plane, he really went nuts and wanted to be part of it! It's not much common here in Brazil people go electric on Giant, specially twin powered scale birds. Besides, it's a very fine bird and you should be proud of it.

I have a Top Flite's Staggerwing waiting for assembling and for the quality of its parts I know what to expect from a Top Flite's B25.

As you say, carry on!!!!

Flavio

krproton 10-26-2007 07:30 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
"Dog" is a term of endearment. It's also a method for people who are "squares," or "not cool" (like me!) [sm=49_49.gif] to make fun of themselves by using a term that is slang whose origins are from rap music. [sm=drowning.gif]

By the way, have you seen the B-25 video on the Top Flite web site? That's me near the end of the video. I'm the one kneeling at the front of the airplane. I appear for just one second!:D

rcmorrow 10-26-2007 07:52 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Timothy- you may want to consider using a very sharp razor saw (very fine blade) for making the vertical cuts on the fuselage. The dremel tool can be very coarse and also inflict great damage if it starts to get out of line at all. I have been making hand cuts for precise situations for years now (I am a woodworker, building hand-made furniture for the past 18 or so years) and I find this to be the most precise method, especially when you only want to make one cut and make it count right !

Just a few thoughts to share with you, but please, it is only some ideas and suggestions. Good luck with the next steps.

flaviosi 10-26-2007 08:11 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Tim,

Come on! I'm cool!


I'm the one kneeling at the front of the airplane.
Brown T-shirt and hat? :) Ok, nice to meet you.

Ok, time to show my fat baggy ugly face before my Rascal's 110 maiden flight and a very interesting aerial pic of my "airport"... Oops! How do I send pics?

Flavio

RCKen 10-26-2007 08:22 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 


ORIGINAL: flaviosi

Tim,

Come on! I'm cool!


I'm the one kneeling at the front of the airplane.
Brown T-shirt and hat? :) Ok, nice to meet you.

Ok, time to show my fat baggy ugly face before my Rascal's 110 maiden flight and a very interesting aerial pic of my "airport"... Oops! How do I send pics?

Flavio
[link=http://www.rcuniverse.com/forum/m_2629917/tm.htm]How to Post Images on RCU[/link]

Ken

flaviosi 10-26-2007 08:30 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
1 Attachment(s)
Ken,

Thank you for the tip.

There it goes.

Flávio

timothy thompson 10-26-2007 08:50 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
hey i see the spiders on the runway! what a beautiful site. thanks for the citting tip i think a razor saw will work. your right if i miss with the dremel there goes the whole plane. the hine line is low so cutting out the bays wont hurt structural intergrity at all.

flaviosi 10-26-2007 09:12 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Timothy!


hey i see the spiders on the runway! what a beautiful site.
Hehehe. Thanks.

The pics are too large, though... It's not showing here on thumbnails...

Flavio

krproton 10-26-2007 09:43 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 


ORIGINAL: timothy thompson

hey i see the spiders on the runway! what a beautiful site. thanks for the citting tip i think a razor saw will work. your right if i miss with the dremel there goes the whole plane. the hine line is low so cutting out the bays wont hurt structural intergrity at all.
Timothy,

why don't you wait a few more days before cutting open your fuselage! I promise I'll try to get some pics of Greg's or my friend's B-25 where they already cut their bomb bay doors? Unless you're really an expert modeler, I'd hate to see you ruin your fuselage. This is something you could to anytime. So if you can wait maybe we'll save you from making a mistake![sm=cry_smile.gif]

timothy thompson 10-26-2007 09:54 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
So you do know of someone else who has done this. Im a scratch scale guy building for 25 years am doing a tf and taylor corsair so i can build. I would like to see the pics of other working doors. when doing this you must outline the area with a couple layers of masking tape. then the zona saw has a guide. i will post pics as i go . I have scale 3 views so dont worry everything will be mearure twice cut once. the bay is where my lipos will go.


go to the warbirds site and look at the tf gs corsair group build thread you can see my wing and the quality What type of govt does brazil have is it different from venezuela? that flying site looks so nice and your sig rascal is nice too

flaviosi 10-26-2007 10:35 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Timothy,


What type of govt does brazil have is it different from venezuela? that flying site looks so nice and your sig rascal is nice too
Well, I could write a lot about it. But to don't be boring and to make it short, I'd say that you can't seriously compare Venezuela to Brazil. First, our economy is way bigger than theirs. Their GNP is 180 billion dollars. Ours is close to 2 trillions. We probably have like... 200 billions in reserves outside Brazil (banking, export/import, etc), which is more than their anual GNP. Maybe you don't know, but Brazil is the tenth economy of the world (talking GNP). Bigger than Russia, for example.

Ahead of Brazil you see 1) USA, 2) Japan, 3) Germany, 4) China, 5) UK, 6) France, 7) Italy, 8) Canada and 9) Spain. Every other country you may think of is behind us. The best second south american country in economy size is Argentina, on position 31st with 200 billion dollars. Venezuela is on 37th .

With that in mind, is easy to understand that Brazil is way much more inserted into the globalization than Venezuela and obviously we couldn't afford to have a Banana Republic Dictator like Chavez or we weren't doing business like we do. :) Chavez, Morales(Bolivia) and another guy I don't remember(I think Colombia) are beeing laughed at, because of their stupid positions against US(their major buyer, BTW) and against the free market. A speech that only echoes with their good friend Castro.

Brazilian President built his carrier as a worker and has a leg on the "left", but he's not stupid and understands that comunism doesn't fit "Brazil, Inc" nor the modern world.

Timothy, I think we're waaaaayyyyyy off topic here. I hope Ken don't bother much, though.

Thanks again for the flying site and the Rascal. It's a great airplane. It flies like a trainer but man enough for some hotdogging. :)

Flavio

rcmorrow 10-27-2007 10:14 AM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Hi All, looks like there are some other threads about B-25's here on RC universe that have some great information and detail pics, etc.

I have been looking around for some 3 view drawings and other details. I also went to Glennis Aircraft to look at their wheel sets (they make scale wheels that are outstanding). Don't know if they have a set yet, but they should be emailing me in the near future.

Good luck with your projects and I'll start taking some pics of my progress here in the next few days.

krproton 10-27-2007 10:20 AM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Looking forward to your pics.

And everybody who may be viewing this thread for the first time--don't forget to go to the beginning and read the my first post with tips/suggestions I wrote and the next post that has suggestions for tightening the covering. ;)

Tim

AirWizard 10-27-2007 10:24 AM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Pictures!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

krproton 10-27-2007 10:48 AM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
1 Attachment(s)
Pictures you ask?

Coincidentally, I was cleaning up around our computer this morning and I came across the CD my brother gave me of the pics he took of my plane. They're not the building pics you're probably looking for, but something to "wet your whistle."

Tim


timothy thompson 10-27-2007 11:08 AM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
krypton havet cut the fuse yet im finishin scaling out the corsair gear doors. looking forward to the bomb bay pics! i did by a specktrum radio for the ship thats some radio!

rcmorrow 10-27-2007 12:56 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Tim, the pics are great, thanks for sharing those with us.

Did you do a bit more scale detailing of your bombadier compartment ? The color of the interior of your plane looks more realistic to the zinc chromate than the way the parts came painted with my kit. Could very well be the rendtion fromthe images your brother took also, every color range is different for various camera, computers, and displays. Please note, this is not a complaint of any kind.......a little detailing and working of the kit is a very enjoyable process and makes it unique to the builder.

Again, great pics and really getting me excited about getting mine in the air as soon as possible.

krproton 10-27-2007 01:52 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Hi rcmorrow.

I haven't done any more detailing in the nose-gunner/bombadier's compartment of my model, other than, as you noticed, I painted it a different color of green. It's difficult to tell what color the interior should be, as many of the interior photos of B-25s I have looked at appear to have different colors in the interior. I will say that the interior isn't necessarily supposed to be zinc chromate. There is a color called "interior" green and it is fairly bright, but perhaps the color of the interior used for our model is too bright. On the other hand, I figured many will customize their interiors and add more details anyway. The purpose of the interior on the Top Flite kit was mainly to "fill the space" and give modelers a good starting point.

And hey, you're allowed to complain as much as you want! You just spent some $650.00, so that entitles you![sm=wink_smile.gif]

For those who may change the color or add interior details, you could just use Testors enamel paint. It's not fuelproof, but doesn't really need to be as no fuel should be getting into your interior anyway! (I hope!) What I did was spray my nose-gunner interior after the back and sides/floor were already attached to the model. But an airbrush is pretty much required if doing it this way--it applies the paint thinly and evenly. If you would rather use a spray can, it would be much better to paint the parts before installing them in/on the model.

I'm sure there will be many of you who are much more "scale-minded" than I and add many more scale details. Keep us posted on what you do and how you do it.:D

Tim

Iceman 29 10-27-2007 04:36 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Hello everybody..javascript:void(AddText(':D','')), i 'm new member on this forum, my name is Pascal, from France,

I have just ordered few days ago the "Big Baby 25" at Tower , is back order, i'm waiting now... javascript:void(AddText('[>:]',''))Is not yet in sale in Europe (end of december may be). Have already received the landing gear.

One question Tim, Where you found the Nuts for the propellers, sure is not fitted with the kit. Do you paint it ?
The thread must be in metric, i will used 2 saito 72 for this magnific Bomber.

Sorry for my poor english, i m not Skakepeare too....javascript:void(AddText('[\&o]',''))

Pascal.

kthmarks 10-27-2007 05:13 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
I would like to consider this plane for my first twin. Problem is......I only have a 7 channel radio (Spektrum DX-7).

Will this work or is a 9 channel a necessity?

timothy thompson 10-27-2007 05:40 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
1-4 ail rudd elev ail 5th gear 6th flaps 7th bomb bay doors if your crazy like me

plenty

krproton 10-27-2007 07:15 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Hello Pascal.

Welcome to the thread and thank you for ordering your Top Flite B-25.

The propeller hubs (nuts as you call them) are included with the kit. They fit the O.S. .70 Surpass II which is 5/16-24 thread.

If these do not fit the engines you will be using you could purchase propeller hubs from Harry Higley.

Your English is fine--better than some Americans![&:]

Tim

krproton 10-27-2007 07:22 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Hi Keith.

Let me think out loud here...

Ailerons - 1 channel
Elevator - 1 channel
Throttle - 2 channels preferred, but could be done on one channel (if you used a servo reverser because one servo has to move opposite the other)
Rudder - 1 channel
Nose steering - separate channel preferred so you can trim separately from rudder, but could be mixed with rudder using a Y-harness
Retract air valve - 1 channel
Flaps - 1 channel

If my math is correct, I guess you could actually fly your B-25 on six channels, but depending on the mixing available in your radio, seven would be better so you could use separate channels for the throttles or for the nose steering and the rudder.

p39 10-27-2007 08:21 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Hey, all.
I received my '25 the other day. The outer box looked like it had been sandwiched between something bigger and heavier. I couldn't get at unpacking until this morning and everything was in fine shape. The back end of the fuselage had actually punched a hole in the inner box but was unscathed. Seems to be a testament to the packaging AND the fuselage build. (I did e-mail Tower and let them know I was pleased with the packaging)

I had been gathering parts and pieces while waiting for the main show-- OS 70's, retracts, servos..... now it's all under one roof. Got the bench cleaned off tonight (One of 4 in my shop) and tomorrow I'll start in earnest. Oh, I know it won't fly anymore this Fall, but it will be one of the first out in Spring.

krproton 10-27-2007 08:33 PM

RE: Top Flite B-25 ARF (Tecnical, tips, suggestions)
 
Hey p39.

Welcome to the thread.

Sorry about the box damage. Glad everything appears to be okay though. Whew!

Yea, I guess it'll be too late to fly it this year--especially since you're up in Minnesota. I wish we could have gotten them out a little earlier. Oh well, this way you'll be able to take your time. Me, I hope to get in one last flying day tomorrow down here in Illinois.

Okay,

take care!;)

Tim


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