Curtiss Wright X-300 VTOL Passenger Aircraft

[hesham]

Hi,

the Curtiss Wright X-300 was developed from X-200 as 40-passenger
vtol aircraft employing gimballed propellers and more powerful engines,
the X-300 differed from the X-200 in that the four engines were to be
mounted in two nacelles-two pulling and twp pushing,VTOL performasnce
was to be achieved by gimballing the rear pusher propellers downward
90-degrees as the forward propellers were rotated upward.

 

[robunos]

from 'the Curtiss X-Planes', schiffer,

cheers,
Robin.

 

[hesham]

Thank you Robunos,

and can I ask you,that I heard the Curtiss Wright X-500 was VZ-7,
is that right ?.

 

[robunos]

there is no information on the 'X-500'/VZ-7 in the above book, but the VZ-7 was designed by a different division, the santa barbara division,
to the X-300, which was designed by the propellor division.

for information on the VZ-7 go here:-

http://www.aviastar.org/helicopters_eng/curtiss_vz-7.php

and, of course, google is your friend.

cheers,
Robin.

 

[hesham]

Thank you dear Robunos,

and last question about this subject,are the Curtiss Wright X-325,X-410 and
X-425 relate to X-300 or not ?.


Thank you in advance

 

[robunos]

no information on X-325, but Model 300, 410, and 425 were all 4 engined tilt prop transports, of differing sizes and weights, as below,
all information from 'the curtiss x-planes'


model 300 length 73' 10" span 63' 6"* max. weight 54,500lbs

model 410 length 67' 11" span 65' 6"* max weight 56,700 lbs

model 425 length 68' 2" span 66'* max weight 62,400 lbs


* includes propellor disc.

cheers,
Robin.

 

[hesham]

Hi,

early concept for the X-100,and X-207,X-100 development and X-205.


http://prototypes.free.fr/curtiss/x100-1.htm
http://prototypes.free.fr/curtiss/x100-4.htm

 

[robunos]

the model 207 was a utility transport design using the wings, tails, engines, and transmission from the model 90, curtiss' submission to the AAFSS requirement, mated to a new fuselage.
design gross weight was 24,400 lbs, max true airspeed was 375 knots at approximately 10,000 ft. hover cieling at design gross weight was 12,000 ft, or 8,000 ft in hot conditions.
range was 380 miles at design gross weight with a 3000 lb payload.
source as before, 'the curtiss x-planes' .

cheers,
Robin.

 

[hesham]

Hi,


here is a drawing from DTIC,looks like Curtiss-Wright X-300 design,
but it has one folding tilt-rotor.

 

[Stargazer]

here is a drawing from DTIC,looks like Curtiss-Wright X-300 design,
but it has one folding tilt-rotor.

You're missing the BIG difference here... this one's got tail-mounted jet units!!

 

[hesham]

From Ailes 2/2/1962,

the Curtiss X-300.

 

[Grey Havoc]

It's interesting that the engines were initially intended to be of the Wankel type (more than likely planned to be built under licence by Wright Aeronautical, which was a division of Curtiss-Wright).

 

[hesham]

From Aeroplane 1961,

the Curtiss-Wright LT-1.

 

[hesham]

From Aeroplane 1960,

the X-300.

 

[yasotay]

I have to wonder if the stability issues that precluded the Curtiss-Wright tilt-prop from succeeding due to inadequate technology could be overcome today. I ponder this when there are technologies like Karem blade control that could have reduced the instability. Given the potential for ~100 knot increase in cruise speed over tilt rotor without folding and such, it might have some utility.