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World War II: USA
Aircraft of the United States in WWII.
Hosted by Rowan Baylis
B-24H Libra 1/48 Scale
thathaway3
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Michigan, United States
Joined: September 10, 2004
KitMaker: 1,538 posts
AeroScale: 68 posts
Posted: Sunday, August 26, 2018 - 06:52 AM UTC
Thanks so much for your kind words.

One of the problems of course with a tri-cycle gear model is to get it to sit on all 3 wheels as the CG without the weight of the real plane's equipment makes the model tail heavy. I put some weight in the bottom of the nose turret and inside the nose wheel itself, but what seems to have really helped is that since the engines all sit forward of the main gear, I stuffed a bunch of washers behind each firewall hoping the fact that it was quite a bit of weight would compensate for the fact that it was only slightly forward of the gears. I'm hopeful that it will be enough.

Having an aircraft with the CG right at just barely in front of the main gear would make landings and take offs pretty tricky for sure.
GastonMarty
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Quebec, Canada
Joined: April 19, 2008
KitMaker: 590 posts
AeroScale: 502 posts
Posted: Sunday, August 26, 2018 - 12:08 PM UTC

Quoted Text

Hi Tom - I've been lurking in the shadows and just want to compliment you on your beautiful workmanship . Nice to see another post - hurry up and get the basement done so we can have more !

As an aside I have watched the Collings Foundation B 24 on several occasions and have come to the conclusion that it's center of gravity must be exactly over the main landing gear as I have never seen an an aircraft hobby horse so much while taxiing . Almost made me seasick while watching !

Cheers - Richard




That's interesting, and probably shows just how bombload dependent the thing was for balance...

That's also probably why the C-87 transport was so finicky (and was almost grounded after 2-3 accidents). The bomb racks set a regulated center of gravity, but a transport could have deadly variations if you were not careful...

Gaston
thathaway3
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Michigan, United States
Joined: September 10, 2004
KitMaker: 1,538 posts
AeroScale: 68 posts
Posted: Sunday, August 26, 2018 - 01:09 PM UTC
That makes sense. It appears the bomb bay is pretty close to the main gear (give or take) and that would help to keep the CG in the middle to forward part of the A/C.
thathaway3
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Michigan, United States
Joined: September 10, 2004
KitMaker: 1,538 posts
AeroScale: 68 posts
Posted: Monday, December 24, 2018 - 04:58 PM UTC
Time for an update. While my basement was being finished (Labor Day -Thanksgiving) I created a temporary work area in my den and actually continued to get some stuff done. Most of what I did was scratch build all of the interior items I wanted to add (mostly for the intercom and radio systems) along with other details. I'll probably have to stop for a while again, while I start to rebuild my work room in the basement so I can resume work there. Next big project will be the bomb bay as well as the radio operators station and the radio installation over the bomb bay.






















































































padawan_82
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United Kingdom
Joined: December 10, 2008
KitMaker: 795 posts
AeroScale: 102 posts
Posted: Tuesday, December 25, 2018 - 09:52 AM UTC
Exceptional detail, my mind has been totally blown. Been following this build and it keeps getting better, your a true master well done Tom
Dragon164
#226
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British Columbia, Canada
Joined: February 20, 2012
KitMaker: 1,864 posts
AeroScale: 491 posts
Posted: Tuesday, December 25, 2018 - 12:42 PM UTC
Hey Tom!

Some nice fiddly bits there!

Cheers Rob.
ColinEdm
Staff MemberAssociate Editor
ARMORAMA
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Alberta, Canada
Joined: October 15, 2013
KitMaker: 1,224 posts
AeroScale: 64 posts
Posted: Wednesday, December 26, 2018 - 02:21 AM UTC
Wow, amazing detail work there!
thathaway3
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Michigan, United States
Joined: September 10, 2004
KitMaker: 1,538 posts
AeroScale: 68 posts
Posted: Wednesday, December 26, 2018 - 03:36 PM UTC
Thanks for all your kind words. After I bought the aftermarket radio set available, I realized that there were quite a few items not included, and it seemed silly to put a few in and not the rest, so I resorted to scratch building. The internet is so great for research, as I was able to find not only the flight manual which described all the items along with pictures, but additional photos of the items from various places as well. Once an engineer, always an engineer I guess!
JPTRR
Staff MemberManaging Editor
RAILROAD MODELING
#051
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Tennessee, United States
Joined: December 21, 2002
KitMaker: 7,342 posts
AeroScale: 3,044 posts
Posted: Wednesday, December 26, 2018 - 05:00 PM UTC
Tom,

I am in awe!

Splendid work. So where did you get these - scratchbuilt? I think this is a hydraulic/fuel system:
thathaway3
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Michigan, United States
Joined: September 10, 2004
KitMaker: 1,538 posts
AeroScale: 68 posts
Posted: Thursday, December 27, 2018 - 01:35 AM UTC

Quoted Text

Tom,

I am in awe!

Splendid work. So where did you get these - scratchbuilt? I think this is a hydraulic/fuel system:



It's a hybrid. The main piece you're looking at in the photo is from the Eduard PE set with some scratch built pieces to give it more depth. There's another similar PE piece for the LH side of the aircraft. But these pieces go only in the bomb bay section, so I scratch built some additional pieces to go into the area under the flight deck. I didn't make as many lines as there actually are according to the photos, but only enough to match the PE lines.


thathaway3
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Michigan, United States
Joined: September 10, 2004
KitMaker: 1,538 posts
AeroScale: 68 posts
Posted: Monday, February 04, 2019 - 08:53 AM UTC
Time for an update. I've mostly finished the intercom wiring and the radio system installation. A large part of that has to wait until after I build the compartment over the bomb bay. I've also installed the flight suit heater system and the aux generator and batteries as well as two hydraulic reservoirs and the nose gear door retractors. Next up will be the oxygen and fuel systems and then on to the bomb bay which will finally allow me to permanently install the flight deck and nose wheel assembly.








































thathaway3
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Michigan, United States
Joined: September 10, 2004
KitMaker: 1,538 posts
AeroScale: 68 posts
Posted: Wednesday, February 13, 2019 - 04:55 AM UTC
I've finished the oxygen system. Next up will be to finally complete the bomb bay which will include scratch building the radio compartment over the wings as well as do the fuel system. I won't do any tanks since those are either inside the wings (already completed) or in the space which the wing attachments are. But I plan to add the hoses, lines and valves which would either be in the radio compartment or bomb bay.




















Dragon164
#226
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British Columbia, Canada
Joined: February 20, 2012
KitMaker: 1,864 posts
AeroScale: 491 posts
Posted: Wednesday, February 13, 2019 - 06:22 PM UTC
WOW!
Very nice indeed Tom!

Cheers Rob.
golfermd
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Maryland, United States
Joined: March 01, 2013
KitMaker: 152 posts
AeroScale: 98 posts
Posted: Tuesday, February 19, 2019 - 07:13 AM UTC
Out fu@$ing standing work!
thathaway3
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Michigan, United States
Joined: September 10, 2004
KitMaker: 1,538 posts
AeroScale: 68 posts
Posted: Monday, March 04, 2019 - 06:26 AM UTC
Thanks to Frederick Boucher's excellent photos I was able to figure out several errors I'd made in the rear section of the aircraft, and I've now corrected these as shown. Thanks so much for your help!

I'm still not quite sure how the roof of the bomb bay is constructed, but I'm starting to have some better ideas and hope to be able to confirm the construction details so I can finish out that area.

Here's the latest showing the corrections I've made.