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RE: New Hangar 9 B-25 - 12/19/2007 10:40:20 AM   
CorsairJock



Posts: 1941
Joined: 4/14/2002
From: Parchment, MI, USA
Status: offline 		Timothy:
the pictures below show aircraft bearing the same name (Thunderbolt), and manufactured/ designed by the same company (Republic/ Fairchild).
As anyone can see: they are "comepletely different".

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< Message edited by CorsairJock -- 12/19/2007 10:49:11 AM >

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RE: New Hangar 9 B-25 - 12/19/2007 10:46:24 AM   
CorsairJock



Posts: 1941
Joined: 4/14/2002
From: Parchment, MI, USA
Status: offline 		These pictures show 2 aircraft also. They are aircraft that were manufactured/ designed by the same comapny, and also bear the name Thunderbolt.
They are different, but NOT "completely different". Many components/ parts from one of the aircraft could be used as parts for the other. Many dimensions are identical. The fuselages are different, but not "comepletely different".

Stay with your "J" model if you think it is impossible to make a "B" from these ARFs, but please don't preach to the rest of us what we can or cannot do. They are NOT as different as you imply that they are.

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< Message edited by CorsairJock -- 12/19/2007 10:47:37 AM >

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RE: New Hangar 9 B-25 - 12/20/2007 1:49:39 AM   
tevans55


 

Posts: 196
Joined: 8/4/2007
From: Louisville, KY, USA
Status: offline 		Tim-
I appreciate scale as much as the next guy but ya gotta lighten up a little. These are not scale J's either! They merely resemble a J. I doubt there is a scale piece on these planes relative to any other piece. In that capacity I chose to resemble my plane after Doolittle's. And I am thrilled with the result not for competitive purposes but for the joy of modeling and the enjoyment of flying something that I made uniquely different from all the other Hanger 9 B- 25's and I am guessing there are going to be quite a few at the field in the next several years. (Please don't tell anyone mine is really a J and I'll bet most people won't notice.)

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RE: New Hangar 9 B-25 - 12/20/2007 4:30:56 AM   
Randy M.


 

Posts: 823
Joined: 1/14/2002
From: Nashville, TN,
Status: offline 		Well, I put the maiden flight on my B-25 today. The weather was near perfect so I couldn't pass it up.
Once I got the engines tuned I taxied out and let r rip. Take off was gentle, just a little trim was needed. I made a couple laps and one engine seemed to go a little lean. So the first flight was cut short. Added flaps and brought her down. The flaps really drag it down so you need to use some power on approach. After some tuning she was off again. But evidently, didn't tune enough. Landed yet again. It seemed to fly a little tailheavy. My cg is at about 4in. My last flight was much better. The motors were running really well. I was getting a little more comfortable with it. I did have a couple hits on the last flight so I brought her down after about 5 mins. I will pull the rx and try a different one. If the glitches go away I will get the rx checked out. All in all, it was a success. There are a couple issues but nothing huge. I will move the cg forward for the next flights. Mine is box stock with fixed gear. I had a special battery made to help out with some nose weight. It's 8 cell nicad, sub c's on 4.8 volts with 4800 mah. I figured I may as well make the weight usefull.

< Message edited by Randy M. -- 12/20/2007 4:32:56 AM >

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RE: New Hangar 9 B-25 - 12/20/2007 5:15:28 AM   
Whistling Death


 

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quote:

ORIGINAL: CorsairJock

Timothy:
the pictures below show aircraft bearing the same name (Thunderbolt), and manufactured/ designed by the same company (Republic/ Fairchild).
As anyone can see: they are "completely different".

They are very much in the same respect though. People on ground shuddered when they saw the first one coming and they still do when see the second one coming. Our weapons of air terror and distruction.

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RE: New Hangar 9 B-25 - 12/26/2007 3:34:11 PM   
SkyDemon


 

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From: Chesapeake, VA, USA
Status: offline 		I couldn't believe it yesterday, when after all the gifts were unwrapped, my wife and son walk out (after she complained because I had gotten up to check on the ham cooking; so being the dutiful husband, I sit down. A couple of minutes later they return with a huge wrapped box. Though fairly new to RC, the options were limited to what could be in a box that big, more a matter of what model. I was shaking as I ripped off the paper. I couldn't believe it; she bought me a H9 B-25J ! Ok, I'll have to wait a while before building it, and I want to get some flights with a twinstick that I have yet to build before I tackle this plane. Now I have even more incentive to finish that addition that I've been working on for 6 months as a plane building room.

She told me the story about how she got it. She knew I wanted a B-25 since my uncle was a mechanic/gunner on one during WWII, and I had picked up a metal diecast model last year. Since she knows little about planes, she took the model to the LHS and they helped her out. She somehow managed to squeeze it into her car, and brought it to our daughters apartment to wrap and for safe keeping. She was lucky enough to get one with the mounted 36NT engines.

I plan on putting retracts in it, but was wondering how it would work to start out with fixed gear then converting. I'll be interested to hear how it works for someone else. I also have a Royal kit that I hope to eventually build and if I can ever find out more info on my Uncle's unit, I hope to paint it in their colors. He was in the "Bridge Buster's" of 490th Bomber Squadron in the CBI Theater.

Mike

< Message edited by SkyDemon -- 12/26/2007 4:02:18 PM >

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RE: New Hangar 9 B-25 - 12/27/2007 3:43:59 AM   
reincarnate



Posts: 820
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From: Columbia City, IN, USA
Status: offline 		No problems changing later. The "plugs" that the fixed gear are in will just be removed and the new gear installed. Good luck!...wait, sounds like you're not a bit short of luck. Hope you got her something shiny for Christmas!

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RE: New Hangar 9 B-25 - 12/27/2007 5:29:23 AM   
Randy M.


 

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Status: offline 		Mike, that'sexactly what I will be doing with the gear. It's no problem at all. The mains will come right out, pop in the retracts and run the hoses. The nosegear will be slightly more work but still no problem. It's a very easy build, if you have the time you should go ahead and build it just to have it to look at.

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RE: New Hangar 9 B-25 - 12/27/2007 6:17:24 AM   
timothy thompson


 

Posts: 2761
Joined: 6/19/2004
From: saginaw, MI, USA
Status: offline 		my father flew p-47s they were different versions with different spines. you could convert a razorback into a jug but they were the same design. Using the a-10 is silly its a modern plane. the tf 25 is 95 % accurate to outline with slightly larger rudders and stabs. The wing airfoils also little off but ok for rc flying. the J fuse is very accurate. in transverse sectionals. Ive glassed my tf bird added scale bomb bay and sequencing doors. My h-9 will be built out of the box for the fun of it . Both are e powered.
Do you know of the many flying 25s only one has the correct dorsal turret all the others are martins and the rear gun position was open and covered with zippered canvas. most of the flying 25s are aluminum with simulated canvas. Also some do not have operational bomb bays. IMHO trying to make a b model out of this is like trying to make the enola gay out of a unmodified superfort.
sorry im a scale guy and into accuracy. I have 500 pics if anyone wants anything i have all rivet locations and can put them on here just ask

the movie catch 22 had a mass t/o of 17 b-25s they wanted 35 but could not find them. that film saved the 25 for us today


jock there is no way to convert to a b model cross sections are differnet i looked at both set of ziroli plans i have and i checked the h-9 fuse against the ziroli j and they are close not bad really this will build into a really nice model. i wish tf would have done the b so i could have done lawsons. ill have to build my ziroli short kit b model soon. im working on my wingspan b-17 and the tf b-25 and the taylor corsair. i take breaks and work on different planes. All will be ready this spring

< Message edited by timothy thompson -- 12/27/2007 6:26:02 AM >

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RE: New Hangar 9 B-25 - 12/27/2007 10:51:12 AM   
CorsairJock



Posts: 1941
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quote:

ORIGINAL: timothy thompson
.................IMHO trying to make a b model out of this is like trying to make the enola gay out of a unmodified superfort.
sorry im a scale guy and into accuracy. ...........


So, I assume that the Enola Gray (I had to insert the "r", otherwise the word would have been censored) is a "completey different" aircraft than a regular, production B-29? I don't think so. Modified: yes.

These ARFs are not exact scale to begin with. They are meant to be inexpensive, easy to build and easy to fly, while retaining the realistic look of a B-25 as much as possible. If one is THAT much into scale accuarcy, one would be better off with a known, scale accurate kit. But from what I have heard: Zirollis are not all that accurate either.

If as you assert, the fuselage cross sections (and therefor: formers) are completely differnt between a "B" and a "J": why don't you post your proof? Altho franky: I don't really care. If my B-25B shows up at a warbird event in your area, and you don't approve: I don't care. I'm not building it to please you, or your father. I am hoping however, that the family/ descendents of the Lt. Jack Sims will appreaciate it. And I doubt that they will be nit-picking if they notice that the fuselage cross section isn't quite right (IF in fact it isn't).


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RE: New Hangar 9 B-25 - 12/27/2007 6:32:54 PM   
timothy thompson


 

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From: saginaw, MI, USA
Status: offline 		yes sir completley diffent engines strengthened wing box spars. no turrets. new landing gear and tires. 2 tons heavier that a normal 29. she had more truss spars in the wing to deal with the shock wave. after landing col Tibbets inspected the aircraft and to this day the ripples in the fuse are still there. The B-50 was an upgraded superfort used in Korea corncob engines.
the basic shape looks the same but the internal mods make them completley new aircraft.



jock google b-25 b and b-25 j and look at the fuse shape the b was a prettier airplane more rounded and aerodynamic. The slab sided J carried a variety od weapons 75mm caqnnon up to 18 50 cal ect so they were stronger.

peace Tim if you want any of those pics let me know

< Message edited by timothy thompson -- 12/27/2007 6:35:35 PM >

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RE: New Hangar 9 B-25 - 12/27/2007 7:53:21 PM   
dbateman


 

Posts: 417
Joined: 12/3/2004
From: mantua, NJ, USA
Status: offline
quote:

ORIGINAL: SkyDemon

I couldn't believe it yesterday, when after all the gifts were unwrapped, my wife and son walk out (after she complained because I had gotten up to check on the ham cooking; so being the dutiful husband, I sit down. A couple of minutes later they return with a huge wrapped box. Though fairly new to RC, the options were limited to what could be in a box that big, more a matter of what model. I was shaking as I ripped off the paper. I couldn't believe it; she bought me a H9 B-25J ! Ok, I'll have to wait a while before building it, and I want to get some flights with a twinstick that I have yet to build before I tackle this plane. Now I have even more incentive to finish that addition that I've been working on for 6 months as a plane building room.

She told me the story about how she got it. She knew I wanted a B-25 since my uncle was a mechanic/gunner on one during WWII, and I had picked up a metal diecast model last year. Since she knows little about planes, she took the model to the LHS and they helped her out. She somehow managed to squeeze it into her car, and brought it to our daughters apartment to wrap and for safe keeping. She was lucky enough to get one with the mounted 36NT engines.

I plan on putting retracts in it, but was wondering how it would work to start out with fixed gear then converting. I'll be interested to hear how it works for someone else. I also have a Royal kit that I hope to eventually build and if I can ever find out more info on my Uncle's unit, I hope to paint it in their colors. He was in the "Bridge Buster's" of 490th Bomber Squadron in the CBI Theater.

Mike

Mike, your a lucky guy! If i ever got anything related to the hobby from my wife for Christmas i think i would pass out from shock. Some women take an interest and i guess some don't. Good luck on your project, i have one coming someday soon i hope. Doug

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RE: New Hangar 9 B-25 - 12/27/2007 9:13:28 PM   
CorsairJock



Posts: 1941
Joined: 4/14/2002
From: Parchment, MI, USA
Status: offline
quote:

ORIGINAL: timothy thompson
yes sir completley diffent engines strengthened wing box spars. no turrets. new landing gear and tires. 2 tons heavier that a normal 29. she had more truss spars in the wing to deal with the shock wave.................................the basic shape looks the same but the internal mods make them completley new aircraft.


So,........having stenthened wing spars (all internal mods I assume) , removing the gun turrents, and having different engines would make it virtually impossible to transform an R/C B-29 model into the Enola Gray? And makes it a "completely different" airplane"? I am no master modeler, but I am pretty sure that I could handle such a transformation.

quote:

ORIGINAL: timothy thompson
jock google b-25 b and b-25 j and look at the fuse shape the b was a prettier airplane more rounded and aerodynamic. The slab sided J carried a variety od weapons 75mm caqnnon up to 18 50 cal ect so they were stronger............................


I took your advice about Google and found this:
http://www.fighterfactory.com/airworthy-aircraft/b-25j.php

Take note of these statements:
"Very minor changes were made as new variants were produced. The B-25A had extra armor and self-sealing fuel tanks. Two turrets, one above and one below the fuselage, were added to the B-25B. The "C" variant could carry more fuel and also had external bomb racks. North American opened a new factory in Kansas City, which designated their B-25's as "D" variants. These early models of the B-25 we not only used by the United States, but were also supplied to the Soviet Union, the Royal Air Force, the Netherlands, China, and Brazil.
Except for larger engines and more weapons space, no other obvious changes were made to future variants."

Lastly, there are a few makers of plastic model airplane kits that take great pride in the detail and accuracy of their model. Tamiya and Accurate Miniatures are two of them. They both typically produce multiple versions of the same basic aircraft. They include extra parts which 'convert' the model to whichever version is being built. I HAVE the Accurate Minuatures B-25B. Altho it is marketed as the 'B, and has all of the Dolittle Raider decals, it also has parts which could be used to transform it into a 'J, or other version. BUT, it only has one set of fuselage halves, BECAUSE THEY ARE THE SAME BASIC AIRFRAME. Guns are addeed, guns are mounted in different locations, canopys and windows change, there are different engines, butthe same basic airframe remains unchanged.
An exception would be the B-26 Marauder, which had larger wings installed on later models, OR the P-40 which had longer tails on later models, but most aircraft remain basically the same from the 'A model to what ever.
My Squadron/ Signal book does not indicate that there were any drastic changes to th