Alan Minyard wrote in message . ..
On 16 Jan 2004 22:22:15 -0800, (robert arndt) wrote:

(WaltBJ) wrote in message . com...
Eyeballing those pictures of the As044 and the Pabst ramjet - IMHO the
AS044 is a pulse jet (else why the square grilled inlet?) and the
Pabst ramjet is a neat way to convert fuel into smoke and noise. Its
specific fuel consumption (Kg fuel/newton/hr) must have been very high
indeed. I believe the ramjet fighter as pictured would have had a
range even less than that of the Me163b. (Little volume for fuel.)
Doubtless why it never made it off the sketch board.
Walt BJ

Walt,

As for the Fw Ta 283 range question: the plane had enough fuel (1000+
liters) for 40 minutes of sustained flight. It's climb would have been
around 17,500 fpm using the Walter rocket motor in the tail plus the
two ramjets. So you would have less than two minutes of climb to get
over the bomber stream and then dive down for the attack. I doubt the
escort fighters would have been able to do anything about it until the
Ta 283 had to land. More of the aircraft would have probably been lost
to ground accidents as the Ta 283 had very narrow track landing gear.

Rob

Well, the V-1 used the same type of pulse jet, and they were routinely
shot down. The pulse jet was a dead end technology.

And it is NOT a form of "ram jet".

Al Minyard

Al, you must be really stupid. The pulse jet isn't dead, ever heard of
the exotic PDW (Pulse Detonation Wave) engines that have been tested
in the '90s forward? Same operation except for the fuel being ignited
by timed pulse laser.
Second, the Fw TA 283 used both a Walter rocket motor in the tail and
two Pabst ramjets which were far superior to the As014 or As044
pulsejets.
Third, the pulsejet IS a form of ramjet, with intermittent combustion
vs continuous. It cannot operate until it reaches a certain airspeed.
In the Ta 283 this would be accomplished by the Walter rocket in the
tail.

Rob