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Old Nov 13, 2010, 11:38 AM
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Wow, looks great! I love the D-Balsa stuff. As far as weight I'm not sure. I only have a 5.5 lbs scale. Good luck on your maiden. Will there be someone there for pics and vids?

Also, which prop nuts are those?
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Old Nov 14, 2010, 06:59 AM
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Thanks - I feel like I just gave birth! We'll definitely be recording the flight with pics and videos.

All the detail parts are indeed Dynamic Balsa, but I didn't follow their installation instructions and ended up with a somewhat less scale look. On the greenhouse and the cockpit, their design calls for ripping out lots of wood, including a couple of plywood bulkheads, and I just couldn't find the courage to do it. It would clearly impact the structural integrity of the fuselage. Most troubling was the removal of the bulkhead at the front of the greenhouse, which as you know is the very forward most structural component of the entire airframe. Consequently, my greenhouse isn't as deep as it should be, nor is the cockpit as long as it should be, and everything is somewhat forced into smaller spaces. Another good reason for not following their design on the greenhouse is that it would have sacrificed the receiver battery compartment and this thing is slightly tail heavy as it is, so looks like I'll be adding even more weight in that compartment. If that battery were further aft, I'd have a real CG problem. But all in all, it looks scale enought to suit me.

Those prop nuts are TruTurn A style, 3/4 x 8 x1.25. Horizon Hobby sells them here: http://www.horizonhobby.com/Products...rodID=TRU7A825
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Old Nov 17, 2010, 05:10 AM
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JT:

I'm making all my final adjustments in preparation for the maiden and I was curious how much nose weight you had to add to yours. I ended up putting 2.75 oz. of lead in the nose and that's on top of the receiver battery, which I think is considerably heavier than yours. It's a 5 cell NiCd 3000 mAh battery. Probably more juice than I really needed, but I had it handy and I obviously needed the weight.

Thanks
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Old Nov 17, 2010, 10:22 AM
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Quote:
Originally Posted by iraqi_cowboy View Post
JT:

I'm making all my final adjustments in preparation for the maiden and I was curious how much nose weight you had to add to yours. I ended up putting 2.75 oz. of lead in the nose and that's on top of the receiver battery, which I think is considerably heavier than yours. It's a 5 cell NiCd 3000 mAh battery. Probably more juice than I really needed, but I had it handy and I obviously needed the weight.

Thanks
When I had my batts in the stock location I had ALOT of nose weight. I didn't weigh it but I think I had 12 "aa" size batts taped up and also my rx pack. What you have sounds about right. That big rx pack will be nice. Should last all day with out a recharge.
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Old Nov 28, 2010, 09:36 AM
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Successful maiden!

JT:

My B-25 had her maiden today and it was just about flawless! Thanks a ton for all your help and advice; it really made the difference for me.

I've got a couple of photos and links to some video posted on my blog at
http://www.rcgroups.com/forums/member.php?u=238824

Thanks again!

Richard
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Old Nov 28, 2010, 11:43 AM
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Quote:
Originally Posted by iraqi_cowboy View Post
JT:

My B-25 had her maiden today and it was just about flawless! Thanks a ton for all your help and advice; it really made the difference for me.

I've got a couple of photos and links to some video posted on my blog at
http://www.rcgroups.com/forums/member.php?u=238824

Thanks again!

Richard
Hey congrats! I'm glad it went well! Hope you have many more flights with her.
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Old Apr 20, 2011, 07:22 AM
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Good day JT ...

Found out here you had a blog and if you don't mind will stick here for a while
as I am moving foward on my B-25 build and would appreciate you follow and
comments my work and issues with great answers to issues if any incounter in the next fiew weeks ...

I have just read you have have made a mold for the powerplant batteries lipo's
into the front canopy compartment. That is a great idea to do and will
probably follow your route as also I have handle that large Mitchell around lately in my working bench area with the wings attach to the fuse and it is a very heavy model to handle well all alone.

And that is cool that you got dead weight issues fix that way as you mention by use the powerplant lipo's in the bomber bay area is kind of tail heavy and
that with the new location now all is kind of perfect.

So will be putting this Mitchell all in part now and will go on with my RG's fixing and make the RG's work smooth and great ... I have follow your advise to go with wood screw's and will probably use 5/8 size now ...

Now will have to drill those wheel's to get the alumi shaft that attach to the RG's strut's together. If I can ask, what drill bite have you use for perfect fit of the shaft with out over sizing the holes in the wheel's? I shure don't want to mess and scrap my wheel's with over size drilling ...

Thanks JT for your always great answers and idea's ...
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Old Apr 22, 2011, 12:39 AM
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By all means, post your questions here. If I can help you I will, if I'm not sure I'll be upfront and tell you I don't know.

The battery mod i feel is the best thing that can be done to this baby.

When I mounted the retracts I used screws and blind nuts. It was a real pain in th a$$ to get them attached on the nose gear. I read of a couple of guys using wood screws with success. If I ever have to remove the gear I will
probably go that route.

As far as the wheels, I used robart diamond tread wheels. They come with all the different size bushings so I didnt have to drill them out.

Good luck with your build. If there is anything I can help you with please feel
free to ask.
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Old Apr 22, 2011, 06:01 AM
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Thanks for
your reply JT ,, I really appreciate your input and help
if I ever incounter a large problem on the build ...

Yeah,
was also going to inplant blind nut's na dbolts on my Mitchell.
But after getting the advise of a scale master for the RG's I have
decide to go with wood screw's as it is reliable, trusty in all matter and even
last on hard landing ...

I don't plan to do hard landing ,, but you never know ...

Thanks for the input about the drilling wheels going ...
I have the robart too ,, and the one design for the Mitchell with strut's
b my kit did'nt have all those multi size shaft to choose from. So I guess I
will have to go slow and be careful to not over size the wheel's.

I will drill small with the first drill bite then i will go up in size till I
gain the perfect fit of the shaft and wheels together ...

Thanks Buddy ,, will be abck soon and will work on that this week-end.
As saturday here will be all rain and grey ,, that's a good day to work on the Mitchell RG's ...

Again thanks for your welcome help ...
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Old Apr 22, 2011, 09:36 AM
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Quote:
Originally Posted by A1TANGO View Post
Thanks for
your reply JT ,, I really appreciate your input and help
if I ever incounter a large problem on the build ...

Yeah,
was also going to inplant blind nut's na dbolts on my Mitchell.
But after getting the advise of a scale master for the RG's I have
decide to go with wood screw's as it is reliable, trusty in all matter and even
last on hard landing ...

I don't plan to do hard landing ,, but you never know ...

Thanks for the input about the drilling wheels going ...
I have the robart too ,, and the one design for the Mitchell with strut's
b my kit did'nt have all those multi size shaft to choose from. So I guess I
will have to go slow and be careful to not over size the wheel's.

I will drill small with the first drill bite then i will go up in size till I
gain the perfect fit of the shaft and wheels together ...

Thanks Buddy ,, will be abck soon and will work on that this week-end.
As saturday here will be all rain and grey ,, that's a good day to work on the Mitchell RG's ...

Again thanks for your welcome help ...
Anytime, and good luck with your build.
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Old Apr 29, 2011, 06:13 AM
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Hi JT,

one question about the RG's ...

I have done them and hold them down with 5/8 wood screw's
like mention befort. All are inplant well and fine from what i see ...

The question,
I have one main gear that seem to have more trow side to side then the other that is more tight and less side to side trow movement. One look
straight down veritcal and the other is like going a fiew degrees out on the exterior side a little when I get the Mitchell to seat flate on them and
on the table.

Is it normal to have a movement like that side to side and not tight fit?
I know there is a little movement in betwen part for the gears, but is
it normal my 2 main RG's are off from a little degrees with eachother
when the Mitchell seatting flat on the bench table?

I will look again in there today and see what could cause this little off set alignment betwen the 2 main gears ...

Thanks for your help Buddy ...

Beside that ,, all looks good ...
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Old Apr 29, 2011, 02:59 PM
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Quote:
Originally Posted by A1TANGO View Post
Hi JT,

one question about the RG's ...

I have done them and hold them down with 5/8 wood screw's
like mention befort. All are inplant well and fine from what i see ...

The question,
I have one main gear that seem to have more trow side to side then the other that is more tight and less side to side trow movement. One look
straight down veritcal and the other is like going a fiew degrees out on the exterior side a little when I get the Mitchell to seat flate on them and
on the table.

Is it normal to have a movement like that side to side and not tight fit?
I know there is a little movement in betwen part for the gears, but is
it normal my 2 main RG's are off from a little degrees with eachother
when the Mitchell seatting flat on the bench table?

I will look again in there today and see what could cause this little off set alignment betwen the 2 main gears ...

Thanks for your help Buddy ...

Beside that ,, all looks good ...
I know mine have a little bit of wiggle in them. The only thing I can think of to cure it would be some shims. I havent had any problems with it though.
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Old Apr 30, 2011, 05:18 AM
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Thanks JT,

one thing I have'nt done is to pressure the system with air.
As the air system is not inplant in there yet the RG's leg's and strut's are left not tight and that cause the gear's to remain free of a air pressure tight fit.

Wonder I have'nt thought earlyer of that ...
To many things on my mind I guess ... lol ...

Thanks for that shims advise buddy ...
If the air system does not do the trick to tight them in
there i will consider the shims ways to do.

I'm shure the air pressure will resolve the problem greatly ...

Thanke again Bud !!
Now back to the Mitchell making with a smile now ...
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Old Sep 25, 2011, 04:02 PM
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Got a great flight in today. Unfortunaly it was only one. The wind picked up pretty good. Will have video once I can get it converted to digital.
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