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Author Topic: Grumman project list  (Read 46435 times)

Offline Skyblazer

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Re: Grumman project list
« Reply #75 on: October 20, 2012, 11:07:09 am »
If that is right,we can say the G-391 was applying to F-14A.

What I have for "391" is "Correlation of Measured and Estimated Minimum Drag of the F-14A Wind Tunnel Mode (1969)" so I guess, yes, the number "391" applied to F-14A-related studies. But it doesn't mean "G-391", just 391!!

Offline Grey Havoc

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Re: Grumman project list
« Reply #76 on: June 06, 2013, 10:05:48 am »
To confuse matters slightly, during the period that Grumman owned the Flxible Corporation [as Grumman-Flxible] (1978-1983), the somewhat infamous Flxible Metro transit bus was known as the Grumman 870. Also known as the Grumman 870 Advanced Design Bus (it was one of two designs created and accepted for the Urban Mass Transportation Administration's "Transbus" requirement).


CAPTION: New York City Transit Grumman 870 #236, preserved as an historic vehicle

DESCRIPTION: NYC Transit Grumman 870 #236 arrives at Jacob Riis Park on a special excursion as one of eight museum buses in the excursion.
IMAGE CREDIT: Adam E. Moreira/Wikimedia Commons
« Last Edit: June 06, 2013, 10:13:19 am by Grey Havoc »
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Offline Grey Havoc

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Re: Grumman project list
« Reply #77 on: March 31, 2014, 04:41:08 am »
Quote
2.2 OVERVIEW OF SYSTEM CONCEPTS

The four SCDs that the GMSA team evaluated were developed by
teams led by Bechtel, Foster-Miller, Grumman, and Magneplane
as examples of potential U.S. systems.  The HSGT alternatives
to which the SCD concepts were compared were the French TGV
steel-wheel-on-rail system and the German TR07 Maglev system.
The Japanese high-speed Maglev system is also described in
this section, but is not included in Table 2.1 due to lack of
performance information.  Table 2.1 summarizes the general
performance results of the GMSA team evaluation.  The section
that follows briefly describes the alternative foreign HSGT
systems and the SCD concepts.
Quote
2-10

2.2.2.3 Grumman SCD





The Grumman concept is an EMS with similarities to the German
TR07.  However, Grumman's vehicles wrap around a Y-shaped
guideway and use a common set of vehicle magnets for
levitation, propulsion, and guidance.  Guideway rails are
ferromagnetic and have LSM windings for propulsion.  The
vehicle magnets are superconducting coils around
horseshoe-shaped iron cores.  The pole faces are attracted to
iron rails on the underside of the guideway.
Nonsuperconducting control coils on each iron-core leg
modulate levitation and guidance forces to maintain a 1.6 inch
(40 mm) air gap.  No secondary suspension is required to maintain
adequate ride quality.  Propulsion is by conventional LSM
embedded in the guideway rail.

Grumman vehicles may be single- or multi-car consists with
tilt capability.  The innovative guideway superstructure
consists of slender Y-shaped guideway sections (one for each
direction) mounted by outriggers every 15-feet to a 90-foot
(4.5 m to a 27 m) spline girder.  The structural spline girder
serves both directions.  Switching is accomplished with a
TR07-style bending guideway beam, shortened by use of a
sliding or rotating section.
Final Report on the National Maglev Initiative (1993)

Some (scant) background: http://en.wikipedia.org/wiki/National_Maglev_Initiative

EDIT: The final technical report (1998) from the Government Maglev System Assessment Team: http://www.dtic.mil/dtic/tr/fulltext/u2/a358293.pdf
« Last Edit: January 24, 2015, 09:01:40 am by Grey Havoc »
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Offline BillRo

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Re: Grumman project list
« Reply #78 on: March 31, 2014, 08:37:29 am »
Here is Northrop's bus:

www.bmpcoe.org/bestpractices/internal/north/grf _north_14html


Offline Steve Pace

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Re: Grumman project list
« Reply #79 on: March 31, 2014, 10:40:01 am »
Years ago I had the misfortunes of having to ride on those rattletrap Grumman buses which were given back to Grumman after only a few years of disservice to the paying public in Tacoma, Washington. -SP
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Offline Grey Havoc

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Re: Grumman project list
« Reply #80 on: August 12, 2014, 02:40:24 pm »
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Offline hesham

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Re: Grumman project list
« Reply #81 on: January 01, 2015, 04:41:36 am »
Hi,


can I ask about that report,it talk about air-cushion landing gear developed by Grumman
and initial work was done by US Army Land Warfare Laboratory,but I asked about the
meaning of DCR-327,is that meaning Grumman G-327,yes or no ?.


http://www.dtic.mil/dtic/tr/fulltext/u2/779386.pdf

Offline hesham

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Re: Grumman project list
« Reply #82 on: July 05, 2016, 02:28:00 pm »
As my dear Tailspin displayed before,we can say

G-436  was AS-2D.

Offline Jos Heyman

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Re: Grumman project list
« Reply #83 on: July 05, 2016, 08:43:11 pm »
G-214 was Grumman's design for what became the Mercury spacecraft.

Offline hesham

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Re: Grumman project list
« Reply #84 on: July 06, 2016, 01:35:09 pm »
G-214 was Grumman's design for what became the Mercury spacecraft.

Nice info my dear Jos.

Offline aim9xray

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Re: Grumman project list
« Reply #85 on: July 06, 2016, 04:43:37 pm »
...but I asked about themeaning of DCR-327,is that meaning Grumman G-327,yes or no ?

No.  G-327 is (was) a missile study.

Offline asiscan

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Re: Grumman project list
« Reply #86 on: January 01, 2019, 10:15:45 pm »
The Advanced Design Composite Aircraft (ADCA) study from 1975-1976 includes a reference to a  ASL-D 952-105B supersonic penetration interdiction fighter. Several references to a Grumman ADCA configuration 105B are included in same attached doc link. Im not familiar with Grumman designation system and perhaps more scholarly forum folk might be able to confirm or deny. I'm ASSUMING, and I make this clear - "ASSUMING" a Grumman designation of 925-105B but this doesn't seem right to me. I apologize if this Grumman design has already been mentioned and is not missing from the forum produced list.

see page 72 of this PDF. Other references are made to this ADCA design in the doc below.

https://apps.dtic.mil/dtic/tr/fulltext/u2/b018948.pdf
« Last Edit: January 02, 2019, 12:00:40 am by asiscan »

Offline asiscan

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Re: Grumman project list
« Reply #87 on: March 07, 2019, 07:42:47 pm »
I suppose I should have asked if any member know what the ASD-L naming system is because it frequently was used by Grumman. My understanding is that it covered purely conceptual designs that went no further.
Thanks

Offline aim9xray

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Re: Grumman project list
« Reply #88 on: March 07, 2019, 10:43:23 pm »
My impression (by no means certain) is that these refer to wind tunnels, test "campaigns" and datasets.

As far as is known, Grumman project numbers had not reached 800, even by 1988.

Offline asiscan

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Re: Grumman project list
« Reply #89 on: March 10, 2019, 07:50:18 pm »
Thanks aim9xray. That makes more sense.