Military aircraft of the past, present and future





Archive for January, 2010

JP-7 fuel

UNA> From: manni…@egr.msu.edu (uid no access)
UNA> Subject: Re: Not burning tank fuel.
UNA> Date: 5 Jan 1995 17:52:03 GMT
UNA> Organization: Michigan State University

UNA> JP7.  And, according to one guy on the hijacked Aviation Leak video on the
UNA> that Discovery showed during the Wings Marathon this year, the crews were
UNA> playing around with a bucket of the stuff (boggle!), and they tossed a lit
UNA> into it (must have been drunk at the time! ;-) ).  It put the match out.

I don’t think I would want to try that experiment, but I’m inclined to
believe a match would go out.  I’m not sure what the term "flash point"
means, but I assume it means the temperature fuel would begin to burn
when exposed to an ignition source.  Maybe this applies to the fuel
vapor rather than just the fuel in liquid form.  The Blackbirds don’t
use an electic ignition system in the jet’s combustion chambers like
all the regular jet engines do.  TEB seems to be the only chemical that
would ignite JP-7 because its exposure to the air makes it burn at very
high temperature!  I always enjoy seeing this greenish puff of smoke as
the engine is first started.


. SLMR 2.1a . Programmers up at 7AM haven’t been to bed yet!

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Blue Angels History

On 3 Jan 1995, brian varine <var…@ece.orst.edu> wrote:

> When did the Blue Angels use F-4′s? Me and a buddy of mine had a nice
>arguement over them flying F-4′s when I was in P-cola. I swore they never
>did, we even called the Blues HQ and they said they never flew F-4′s. I
>know they flew A-4′s. Have I been wrong all this time??? Please tell me
>no.

I thought the history of the Blue Angels was covered in one of _The Hook_
editions I have from over the past 2 years but I was mistaken.  I did
find Blue Angels history in souvenir programs from NAS Miramar Airshows
in 1988, 1989 and 1991 (lived near L.A. for five years and never missed
a Miramar airshow!  IMNHO, the only redeeming feature of Southern California
was the numerous airshows at various military bases!).

Anyway, here is a list of Blue Angels aircraft and years flown:

Aircraft                      Year
——–                      —-
F6F-5 Hellcat                 1946
F8F-1 Bearcat            1946-1949
F9F-2 Panther            1949-1950
F9F-5 Panther            1951-1954
F9F-8 Cougar             1955-1957
F11F-1 Tiger             1957-1968
F-4J Phantom II          1969-1974
A-4F Skyhawk II          1974-1986
F/A-18 Hornet            1986-present

Blue Angels History, mostly from the 1988 NAS Miramar Air Show souvenir program
with inputs from the 1989 and 1991 programs:

The Blue Angels – From "Hellcats" to "Hornets"

The Blue Angels, known officially as the U.S. Navy Flight Demonstration
Squadron, have thrilled millions of spectators with their precision
flying.  Although the individual manuevers performed by the team are
those taught to every prospective Navy and Marine Corps aviator during
flight training, the airshow has evolved since the first team was organized
[in 1946] to become the epitome of aerial artistry.

In 1946 the organization of a light exhibition squadron was ordered by the
Chief of Naval Operations (Adm. Chester W. Nimitz) and four (1989 program
says ‘three’) Grumman "Hellcats" were flown in the original airshow at NAS
Jacksonville, Florida in June, 1946.  The exhibition consisted of aerial
military maneuvers flown in close formation by veteran combat pilots of WW II,
led by LCDR Roy M. "Butch" Voris, and the show climaxed with the shooting down
of a North American SNJ "Texan" training aircraft painted as a Japanese Zero.
This maneuver was subsequently dropped from the routine.

In mid-August, 1946, the team moved into the faster and more agile Grumman F8F
"Bearcat" and introduced the traditional Blue Angel "diamond" formation.
The prop-driven Bearcats served the team until the transition to jets in 1949
when the Grumman F9F-2 "Panther" was introduced, along with the traditional
blue and gold paint scheme.  This jet was flown by the team until 1950
at the outbreak of the Korean War where the Blue Angels were ordered to serve
in combat aboard the Aircraft Carrier USS PRINCETON as the nucleus of Fighter
Squadron 191.  It was with "Satan’s Kittens" that LCDR Johnny Magda, the
commanding officer, was shot down, becoming the first Blue Angel to lose his
life in combat.

In later 1951, the Chief of Naval Operations reformed the team using Grumman
F9F-5 "Panthers" and headquartered the team at NAS Corpus Christi, Texas.
For a short period in 1952 two soloists flew the F7U-1 "Cutlass" aircraft
built by the Chance Vought Aircraft Company to supplement the four Panther
aircraft.

During the winter of 1954-1955 the team began to fly the swept-wing
Grumman F9F-8 "Cougar" and moved their base of operation to their
present home base, NAS Pensacola, Florida.  The faster Cougar allowed
the introduction of new maneuvers, such as the thrilling Fleur-de-lis.

In mid-season 1957 the team moved to the new supersonic Grumman F11F-1
"Tiger" which served the team for 11 years and allowed a number of new
maneuvers to be displayed.  The four-plane diamond landing, the six-plane
delta landing, the Double Farvel, the Half-Cuban Eight and the Dirty-Roll
maneuvers drew many more spectators.

The 1969 season introduced a new aircraft to the team – the McDonnell Douglas
F-4J "Phantom II".  The Phantom provided the power to perform the four-plane
Line-Abreast Loop, inverted Fleur-de-lis, Tuck-under Break and echelon
landings, while the two solos were able to fly the opposing Dirty Rolls on
takeoff.

In December, 1974 the team switched to the McDonnell Douglas A-4F
"Skyhawk II" aircraft.  Although smaller than the Phantom, the shorter
turning radius and faster roll capabilities of the delta-wing Skyhawk
soon proved their effectiveness.  Also at this time, the team is reorganized
into the Navy Flight Demonstration Squadron.   The reorganization establishes
the first commanding officer (CDR Tony Less) vice a flight leader and adds more
squadron members and staff officers.  The changes gave the demonstration pilots
more time to concentrate on flying while the restructuring and added personnel
also gave them the opportunity to redefine their mission and target more
of their efforts toward a young, talented recruitable audience.

On November 8, 1986 the Blue Angels completed their 40th Anniversary year
and celebrated by unveiling their present aircraft, the twin-engine
McDonnell Douglas F/A-18 "Hornet".  The Hornet is the Navy’s first
dual-role, fighter/attack aircraft now serving in the nation’s front line
of defense.

***> Greg Fischer                    MIT Room 39-559 <***
***> Email:  fisc…@mtl.mit.edu                     <***
***> WWW:    http://www-mtl.mit.edu/bin/user?fischer <***

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Re: Does the ANG fly any Tomcats ?

In article <3eh5eg$…@acmey.gatech.edu>, gt50…@prism.gatech.edu (Anurag

Gupta) writes:
>A friend insists he saw a photograph of an ANG unit ( Pensacola? ) flying
>the F14s. Could any knowledgeable people confirm ?

>thanks
>Anurag

I checked World Air Power’s _The U.S. Air National Guard_ book (1993) for
mentions of the F-14. There were two, but only relative to the ANGs role
of flying tankers (KC-135s and KC-10s). A review of this books shows that
the ANG seems to fly almost every aircraft ever built, except for the
noticable absence of U.S. Naval/Marine aircraft (e.g., Tomcat, Hornet,
etc.) This, however, is not proof positive that the ANG doesn’t fly them.

Bart
Prowler…@aol.com

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Re: WWII number of sorties

Could someone please EMail a source that lists the number of sorties
flown by aircraft type in WWII.  A source with approximations
will do.  Specifically I would like to know how many sorties
were flown by such planes as the Bf-109G, Fw-190A, P-51D, P-47D, F6F,
Spitfire I, etc.  

-Bill
me…@mizar.usc.edu

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Starting Big Radials

How were big radial engines started?  I seem to remember that B-17s,
B-24s, B-25s were cranked by battery power.  Were others battery
cranked or were some sort of exposive charge used.  The only B-29
I ever saw start up had an auxillary engine which apparently supplied
electrical power to crank the engines.  When an engine was cranking
the auxillary could be heard really laboring.  Was this standard?
What about the B-36.  Those 28 cylinder engines must have required
some effort to crank.

Bob

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Re: Stupid gun question

In article I…@netcom.com, tpg…@netcom.com (Eric Myers) writes:

> Ok here it is: when talking about aircraft armament, what is the
> difference between a gun and a cannon? I’ve seen some fighters listed as
> using both, but I’ve never been sure where the distinction lies. Rifled
> barrel? Type of projectile? physical size? Thanks in advance.

Not a whole lot. The Germans call their guns, kannon. But usually, cannons
fire shells that explode while guns are designed for solid projectiles(balls).
So there are few cannons smaller than 20mm calibre.


Just call me `Man’.
"And why take ye thought for "    –   Matt. 6:28
raym…@vega.ame.arizona.edu

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Areo Salon '95 info?

I saw in AvWeek the dates for Aero Salon ’95, but I wonder if anyone in this
newsgroup has (or knows of) any info relating to where to get tickets, how
much, what days are "general public" days, etc.

If any of you have attended in the past, how many days did you spend there?

Thanks.


–James S. Barker
  Portland State University
  bar…@cs.pdx.edu           ICBM: 45`50′N, 122`34′W

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"Propping" Radial Engines

I was in VMR 153 for awhile in the early 1950s, flying R5C-1s (what the army
guys mistakenly called the C-46).  The props on the R-2800 engines were pulled
through by hand every morning before the engines were run up.  I think the
count was eight blades.  I suspect that was standard throughout the marine
corps, but I’m not sure.

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Re: Why rotories before radials?

In article 5…@info1.sdrc.com, esd…@sdrc.com (Dave Pinella) writes:

> Hi, I’m new to this newsgroup. A question has been posed
> to me that I can’t answer. Why was the rotory engine
> developed before the radial? It seems to me if you
> conceived of the rotory, the radial would be a more logical
> solution eliminating the presumed headaches of spinning
> cylinders. Can anybody explain the history behind the rotory
> and why it was even developed at all instead of developing
> the radial from the start? Thanks!

With the rotory, flywheel is not needed because the engine is one big flywheel!


Just call me `Man’.
"And why take ye thought for "    –   Matt. 6:28
raym…@vega.ame.arizona.edu

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Radial, Rotary, …What?

Ok, Over the past years I have seen and heard about all types of engines
that have been used in aircraft. Two types seem to defy my understanding
of the proper designation. Both have the pistons mounted around the
Crank. I understand that Radial Engines are those whose crankcases are
mounted to the air frame and the prop is attached to the crankshaft. The
most obvious example to me at the time is the FW190.

I have seen references to another ‘radial’ engine where the crank is
mounted to the airframe and the engine is mounted to the propellor. I
think they are from WWI vintage AC. My big thought is why set the engine
up this way. Also how the heck do you feed those intake valves?


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