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Electric Ducted Fan Jets Discuss electric ducted fan jets here including setup tips, power systems, flying techniques, etc.

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Old 12-22-2010, 06:54 PM   #476
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Ed, I like the idea you propose in that when a scale model has been built carefully to look like the real thing, some level of research into how the real one was operated will not only make the model more realistic in appearance but it will add consistency and a higher level of successful operation to the effort.

Even in sport models like sport EDF's and jets, some level of research by the owner/operator would make watching their flights more enjoyable (and less destructive in some cases) if they took on some operational traits of similar type aircraft that exist. For a Bandit (just as an example), something between a full scale F-100 and T-33 profile in the landing pattern would work if one wanted to really put on a show of smooth and life-like flying. Better at least than the chop and drop, bank and yank style of stick flicking that passes for pattern work at times. Having said all that, most Bandit pilots are pretty good sticks, the above is just an example, LOL
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Old 12-22-2010, 08:30 PM   #477
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Default 10.2% of Real

Eddie,

Models built for competition must be planned before design then construction stage so you uncover issues which haunted the 1:1,
and discover how others have dealt with the problems.

The single most important question to find answers to is how does the 1:1 behave if...

My greatest concern was for the landing speed way back in the beginning. I foresaw a 70 mph touch down with turbine power
because of excessive AUW. I worked across it all and brought it down to an anticipated 25~30 mph with the approach chute
trailing behind. At least at 30 I can plane out the fuselage to prevent the bucking bronco.

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Old 12-23-2010, 01:14 AM   #478
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Default Have A Merry Christmas N' Happy New Year

Merry Christmas Y'all ! ! !

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Old 12-25-2010, 10:07 PM   #479
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Default In Air Refueling Door Revisited...



Here is the door opening mechanism... It is hydraulic instead of electric as suggested by someone earlier.



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Old 12-25-2010, 11:49 PM   #480
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Default Hippie-Dippie Weather Girl...It Could Happen...:)

Sorry....Judy....couldn't resist your quote...."It Could Happen"...



Hippie Dippy Weather Girl...I believe comedian George Carlin was in the USAF prior to the start of his stand up career. At
exactly the same time the USAF conducted its "weather research" collecting atmospheric aka fall out sampling...in various
parts of the Northern Hemisphere...West of Anchorage and East of London...through the 50's to mid 60's.



As of the last conversation Sam and I had about which he is replicating...he liked the stringer scheme of a "weather sampler".
These flew across North East and North West Soviet Union from early 50's through to their replacement by the B-52 in the mid
60's. Two "on duty station" pathways that existed into the 90's for the B-52's (No, that's not the band... .

Gotta love Sam's "stinger scheme"...

Gottsta love a MATS (Military Air Transport System) logo on side of BW-47's rear fuselage. Who did they think they were fooling? Oh yeah,
they were monitoring the air "quality" of Murmansk and Kolymiskaya. One might imagine the ECM and listening capabilities on the BW's were
sniffing sub pens along the North Atlantic and Arctic Ocean then inland paralleling the shore....way inland... Who'd a thought that far inland
the length of the Chukotskty Peninsula...holly guacamole'.



Like Judy says..."It Could Happen"... ;^)


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Old 01-19-2011, 09:46 PM   #481
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Just wondering what became of this project.
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Old 01-19-2011, 10:07 PM   #482
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What "became" of this project?

Project is simply off at a right angle working through design issues to clean up artwork from '50's era drawings. Interesting
you have only posted three times in WattFlyer in four years. I consider this a compliment that my project was worthy of
your thoughts and time.


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Old 01-20-2011, 04:41 AM   #483
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Thank you for the clarification.
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Old 01-30-2011, 04:02 PM   #484
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Edited WB "Weather Bomber" image:


WB-47B, In 1956, a single B-47B (WB-47B-0-12115) was converted into a WB-47B weather reconnaissance aircraft and operated by the Military Air Transportation Service (MATS), making it one of the few B-47s that wasn't operated by SAC. This aircraft remained in service with the Air Weather Service of the Military Airlift Command (MAC) until the mid-1960s.


After serving with SAC from 1953 to 1963, the Museum's Stratojet was redesignated as a WB-47 and flew weather reconnaissance missions with the U.S. Navy into the 1970s. This aircraft is on loan from the National Museum of Naval Aviation at Pensacola, Florida.

WB-47E

Following the single WB-47B weather reconnaissance conversion, in the early '60s, 34 B-47Es were converted by Lockheed into WB-47Es for weather reconnaissance. These aircraft were stripped of combat gear, including the tail turret. They were fitted with cameras in the nose to take pictures of cloud formations, and carried a special meteorological instrument pod in the bomb bay.

Initially assigned to the Air Weather Service of the Military Air Transport Service (MATS), they became part of the Military Airlift Command (MAC) when that organization was established. The last WB-47E was retired on 31 October 1969, and was the last B-47 in operational USAF service. That airframe resides in the Seattle Museaum Of Flight on loan from the USNS Aviation Museum in Pensicola, FL.


WB-47E was the designation assigned to converted SAC B-47E medium bombers used for weather reconnaissance by the Air Weather Service (AWS). They had nose-mounted cameras that recorded cloud formations, and they carried air-sampling and data recording equipment inside a sensor pod in the bomb bay. [1]The first of 34 WB-47Es was delivered to the AWS on 20 March 1963. The last operational USAF B-47 to fly was WB-47E-75-BW (51-7066) of the 55th Weather Reconnaissance Squadron on 30 October 1969. It was flown from McClellan AFB, California to Boeing Field, Washington, where subsequently it was restored to its SAC configuration and put on display at the Seattle Museum of Flight where it resides today. Its been intersting to see WB-B47E documentation literally desolve right before our eyes.
We press on...

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Old 02-01-2011, 04:03 PM   #485
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Default Red Stinger WB-47E

Almost forgot to post the real deal image... Click thumbnail to view full size image


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Old 02-07-2011, 07:06 PM   #486
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Default WB-47 0-12115 aka 1-12115

I'll share a few more "Stinger" images. We've pretty well got everything for it at this point.







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Old 02-16-2011, 03:44 PM   #487
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Default Our Glass Parts Can Be Your Glass Parts

Moving forward on the B-47's we are making our fiber glass parts available to you. These are the fuselage front, both engine
nacelles, fuel tanks, and rear fuselage from just ahead of the horiz. stab to the 20mm turret.



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Old 02-22-2011, 02:27 PM   #488
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Default Most Forward Of The Furthest Back

The rear of the fuselage is divided into two sections. If you have been keeping score you last saw the most rearward
formers and composite of the fuselage rear.

http://004edc4.netsolhost.com/B47/B4...site111010.gif




We move to the most forward of the furtherest back:

http://004edc4.netsolhost.com/B47/B47Lines/STA861.gif



http://004edc4.netsolhost.com/B47/B47Lines/STA916.5.gif

http://004edc4.netsolhost.com/B47/B47Lines/STA970.gif

http://004edc4.netsolhost.com/B47/B47Lines/STA1024.gif


http://004edc4.netsolhost.com/B47/B47Lines/STA1062.gif

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Old 02-22-2011, 06:24 PM   #489
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http://004edc4.netsolhost.com/B47/B4...teFormersJ.jpg


Above is the full fuselage former set from nose to tail turret. Clicking the underlined text will get you an image you can take
to any large format copying center and print out yourself from a memory stick.

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Old 02-23-2011, 07:31 PM   #490
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http://004edc4.netsolhost.com/B47/B4...ersJMaster.jpg





Clicking the thumbnail below will enlarge it to where you can view it without overwhelming your computer. The file above is
somewhere around 9800 pixels wide. Any questions before I move on to tie all this into a nice neat bow? Now's the time to
ask...


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Old 02-24-2011, 03:06 PM   #491
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http://004edc4.netsolhost.com/B47/B4...ersJMaster.jpg

A couple of people have asked how to work with the above image file. Initially if you click on the underlined text it will open on
your screen in a new window. Be patient as it is a very large image file.

When it is completely open a full screen reduced image will appear. Typically your cursor will have a + symbol appended to the
cursor indicating the image is capable of being enlarged or "zoomed" to its original size.

Placing the cursor onto a portion of the drawing you want to see close up will cause that specific portion to be enlarged. For
your personal use the image can be saved to your computer. Saved to a memory stick, the image file can be taken to Kinko's
or another reproduction/copying center to print as a large image. When this project is completed there will be a 10.2% image
file made available.

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Old 02-24-2011, 06:04 PM   #492
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Default This needs your immediate attention...

Before this gets any older, your attention is needed to see this matter is put to rest ASAP...

Unless you have been living under a rock, you are well aware of the FAA's pending change in airspace usage over the
United States. This is real, it has already constrained UAV and Commercial airspace usage.

Recreational R/C has been segregated from commercial during previous definitions. The US Senate voted on and passed
a Bill to exclude recreational RC from constraints being placed on commercial R/C and autonomous R/C.

However, the Bill has to be passed in the House Of Representatives, then it is sent to the President for either veto or
signature into LAW. Only after it passes this will you be assured there will be no future issue with your recreational R/C
use and commercial R/C being swept into an FAA ruling by virtue of the commercial and autonomous R/C use.

You need to click the underlined text below and follow the directions to send a letter to your personal Congressional
Representatives which explains the entire issue and solicits their positive vote for recreational R/C and your permission
to continue flying your model.

It would be good for you to click the underlined text below and enter your data to send your personal Congressional
Representation an automated letter on behalf of you continuing to be able to fly recreational R/C in the United States.
This is real, it needs your participation....TODAY

Click the underlined text below and follow the instructions.

http://amagov.modelaircraft.org/4077/this-is-placeholder-call-to-action/_

It could occur, and probably will.......... that the President will VETO this ammended Bill when it hits his desk. The
ONLY way to OVER RIDE his VETO is for your Congressional Representative to vote in its favor.

Now is the time to join your fellow USA R/C modelers, AMA members and non-AMA members to act on behalf of
saving your hobby.

Respectfully,

CLICK HERE

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Old 02-25-2011, 03:14 PM   #493
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Default Fuselage Parting Points & Materials

http://004edc4.netsolhost.com/B47/B4...ng_PointsC.jpg

Click underlined text to view enlarged:



To answer all those unasked questions from people taking a short-cut to this post rather than starting at the beginning the
above illustrates the multiple sections of the fuselage.

Blue, Dow© 6o/100 Hiload high density XPS polystyrene. (CNC milled) Note: This is not blue Styrofoam©.

White, high filament content polystyrene foam sold by AeroSpace Composites© Spyderfoam© XPS polystyrene. (hot wired).
Note: Vertical fin is built up construction.



Manufactured by Dow© and sold by ACP© aka AeroSpace Composites Spyderfoam© XPS polystyrene a product developed for
the manufacturing of surf boards. Spyderfoam© (former generic name for this product) has two times the compression strength
of Dow blue Styrofoam©.

Dow Hiload© is similar in density to Spyderfoam© however Spyderfoam's (Surfboard Foam©) unique composition incorporates
vertical filaments with the foam. Filaments are aligned perpendicular to the raw billet length, creating what ACP© calls a ridge
honeycomb.

ACP© states Spyderfoam© allows better wicking of Z-poxy© resin into foam sub-surface to enhance bond and shear strength.
Spyderfoam© weighs 10% more than Dow blue Styrofoam©, but permits the use of lighter weight surface material resulting in a
lighter yet stiffer component.

It had been a year since I last resourced Spyderfoam©. As "normally" sold by ACP© the billets are 5.5" thick. Obviously this will
not do because we need to hot wire our fuselage interior. If multiple 5.5" thick blocks are glued together to achieve thickness I
need, it will not provide the compressions strength deisred becaus filaments do no retain their continuity.

After exhausting Dow's online knowledge base I picked called Michigan to identify the "sold-as" Spyderfoam©. Twenty minutes
later I was told Dow© no longer manufacturered the product and it was available at ACP©. I called and spoke to Amanda at ACP©
who advised Dow© is in fact the manufacturer. I returned to Dow© and found a different third tier product specialist who was less
cooperative than the first... :^) However, she advised that AeroSpace Composites aka ACP© is whom I need to call.

I called ACP© speaking to Amanda again. I explained I had been sent back to her from Dow... She laughed...which made me feel a
whole lot better...really I had to laugh! Then, I asked Amanda the magic question. Does ACP© cut down the Spyderfoam© from a
master billet? Amanda said "no". This was music to my ears :^) This meant their source was not Dow© but a converter aka master
distributor of Dow© foam products.

Why does this matter? Well that one is simple. The typical XPS product is extruded in 48" x 48" X 96" billets. Billets are sold to the
converters who hot wire it to various sold-as sizes. This meant someone was probably sitting on a large billet and it is likely I will
be able to acquire the sizes I need.

Four red cross sections are the shapes at each multiple piece fuselage parting point.


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Old 02-26-2011, 01:28 AM   #494
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Default Spyder Foam, Or Is It Surfer Foam...We Will See.

After literally hours, half a day...I learned the skinny on what "used to be" Spyderfoam©.

Another case of what was, isn't. Dow© manufacturers a more practical named product, Surfboard Foam© for two distributors
(California and Florida). It is sold by Dow© in 24" x 24" x 96" billets. Dow's distributors cut it down to 5.5" x 96" for ACP©.

Now for the big question...is Surfboard Foam© the same as Spyder Foam? Well I'll know next week. Foam Sales & Marketing©
in Burbank, CA is one of the two Dow Surfboard Foam© distributors. I chased around Dow during four telephone calls to Michigan
and finally found a lady who shared what little she dare share.

Yes, you'd think it was a DoD secret she was sharing. I called Eric at FS&M© who I had spoken to earlier in the afternoon
sharing what I had learned from Dow©. Eric shared a little, and I do mean "little" detail then offered to send me a 6" x 6" x 6"
sample of Dow High Load 60© and Surfboard Foam© for evaluation.

When they arrive I will waffer cut each with a hot wire and see what be within that makes them different, if in fact they are.
The point here is to only buy Surfboard Foam© if it in fact has perpendicular fiber strands indicating it is in fact, Spyder Foam©.



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Old 03-01-2011, 03:46 PM   #495
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Default Resources, Ah Those Precious Resources... :^O



Above parting points for our front fuselage, center, and rear are documented in my B-47B and my B-47E maintenance manuals.
Opps, cats out of the bag...yes B-47E maintenance manuals. Gotta love those Italian women and their documentation... :^)




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Old 03-01-2011, 04:11 PM   #496
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Default Can O' Peas, Revisited

Sory if this seems to jump around a bit. I finally found the production record for the two different canopy styles.
Previously I had a few photo and this oblique image.



This is the production sequence parting point for which canopy style was used on what BuNo.



The clamshell opening does not slide "back". The hinge block rotates as the canopy rises.


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Old 03-02-2011, 12:16 AM   #497
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Default Documented, No Longer Assumed... :^O

As stated in:









Use of a Gyro is permitted on the B-47 under FAI F4C, USSMA, and AMA.








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Old 03-02-2011, 01:25 AM   #498
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Default Turning, Almost...Within Our Wingspan

Rear Gear drag braked the the front gear hangs a 90 degree left or right for a standing turn.



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Old 03-05-2011, 05:40 PM   #499
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Default Where Did We Go?

From time to time I use this avitar to emphasize the importance of doubting what, through accumulative and homologation
(standardization), can too easily become "assumed" accurate when in fact, it is not.

New comers to this thread are asking themselves what that means and not realize this project has been through "3" reworks to bring
what was assumed accurate into a corrected and accurate final result representing what I intend as our 10.2% B-47E IV.

Many times I have referenced contradictions existing between drawings. This has been caused by the fact most drawings are small
and difficult to measure accurately. These may also be artist renderings used in manuals, publicity or marketing of the 1:1. However
I am convienced in our case cold war secrecy is responsible for the majority of it. Dave (1/16th B-47 designer) mentioned discovering
contradictions in BAC supplied resources. I have found them in USAF/BAC T.O.'s as well.

Remember you have only seen 499 disclosures of the "thousands" of resources collected for our 10.2% B-47E IV and WB-47B.


That should tell you what I'm knee deep in.

Further posts resume within B-47 1/10.2th Scale, Boeing Stratojet...In The Middle

http://www.wattflyer.com/forums/showthread.php?t=60561

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Old 03-12-2011, 02:37 AM   #500
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Default Resource Summary

This morning USPS delivered my fresh off the press copy of "Famous Airplanes Of The World #142 Boeing B-47 Stratojet".
This is a "brand spank'n new" publication from Bunrindo Co., Ltd. in Japan. I ordered it three days ago and its here! Can't
say the same for the foam samples sent to me from Burbank, CA., eight days ago. They are said to inroute to be delivered on
Monday, or "by the end of day" on Monday.

As an example of why you should acquire a copy of this documentation resource see the photo of th rear turret with an overlay
of the former shapes.



Before I go further... ISBN978-4-89319-193-9 If you want a copy of this fabulous documentary summary that is the book's I.D. and it is
published by Bunrindo Co., Ltd. in Japan. Now with recent events...I would suggest you approach your favorite documentation book seller
to see if they have this softbound in stock. Barbarrosa, Schiffeler and Zenith would be a good place to start.


I fear JHL where I purchased it no longer is functioning. I sent them an email inquiry and will let you know. As you can see by clicking the
logo their online order server is functioning fine...though it could very well be in Houston for that matter. I will let you know after I receive
a reply. In the mean time... below is the order summary for the book.

BUNFA142 Famous Airplanes of the World #142: Boeing B-47 Stratojet ISBN978-4-89319-193-9

Merchandise Total: 1,524
Shipping Charge: 1,344
Total: 2,868 Yen.


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