XB70 weighed nowhere near million pounds:
Specifications (XB-70A)
Data from USAF XB-70 Fact sheet[46]
General characteristics
* Crew: 2
* Length: 185 ft 10 in (56.6 m)
* Wingspan: 105 ft 0 in (32 m)
* Height: 30 ft 9 in (9.4 m)
* Wing area: 6,296 ft² (585 m²)
* Airfoil: Hexagonal; 0.30 Hex modified root, 0.70 Hex modified tip
* Empty weight: 210,000 lb (93,000 kg)
* Loaded weight: 534,700 lb (242,500 kg)
* Max takeoff weight: 550,000 lb (250,000 kg)
* Powerplant: 6× General Electric YJ93-GE-3 afterburning turbojet
o Dry thrust: 19,000 lbf[31] (84.5 kN) each
o Thrust with afterburner: 28,800 lbf[31] (128 kN) each
Performance
* Maximum speed: Mach 3.1 (2,056 mph, 3,309 km/h)
* Cruise speed: Mach 3.0 (2,000 mph, 3,219 km/h)
* Range: 3,725 nmi (4,288 mi, 6,900 km) combat
* Service ceiling 77,350 ft (23,600 m)
* Wing loading: 84.93 lb/ft² (414.7 kg/m²)
* lift-to-drag: about 6 at Mach 2[47]
* Thrust/weight: 0.314
--On Monday, December 01, 2008 2:37 PM -0800 Jones Beene <[EMAIL PROTECTED]>
wrote:
Robin,
I would prefer to see a Li/B11-fusion powered vehicle that used alpha particles
to create free
electrons ...
SIDE NOTE this beautiful airplane below, which never advanced much further than
prototype stage -
might possibly have had a "hydrino connection" and possible a LENR (boron
fusion) connection to
some small degree.
http://en.wikipedia.org/wiki/XB-70_Valkyrie
better pics here:
http://www.unrealaircraft.com/classics/xb70.php
... it was notable in that
1) it weighed more than a 747 (million pounds+) and still could hit mach-3
2) used a boron compound (TEB or as a tri-ethyl borane) as a high energy fuel.
It was said to have been most extraordinary and secretive, but way too costly.
Details were once
classified but nowadays could be available. The boron fuel was the first
program to be canceled
(ostensibly due to cost but who knows that there were not other problems like
radioactivity)
One wonders, given the extra boost of the fuel - if there was any alpha
radiation heating up the
exhaust ;-)
