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Our Expert Sherpa Guide Migmar Sherpa, our happy client Melisa and Porter @ Everest base Camp ((5,364m/17,594ft)
🔷 Day 01: Arrive Kathmandu
🔷 Day 02: Drive to Pokhara by tourist bus 7/8hrs,210km, 810 m, Elevation
🔷 Day 03: Pokhara to Jhinu by Jeep 3 hrs drive. Trek to Chhomrong Village 2 hrs trek, 2721 m, Elevation
🔷 Day 04: Trek from Chomrong 6 hrs trek (2,165m / 7,105ft) to Dovan (2,600m / 8,528ft)
🔷 Day 05: Dovan to Machhapuchre Base Camp 6 hours (MBC- 3,700m Elevation
🔷 Day 06: Machhapuchre Base Camp to Annapurna Base Camp 3 hours ABC- 4130m. Elevation
🔷 Day 07: Annapurna Base Camp (ABC) to Bamboo 7 hours 2,300m Elevation
🔷 Day 08: Bamboo to Jhinu Danda and pokhara 5 hours trek (1,780m/5,859 ft)
🔷 Day 09: Trek from Jhinu Danda (1,780m / 6,393ft) to Siwa/Ghandruk Phedi (1,150m / 3,770ft) and drive to Pokhara (820m) via Nayapul.
🔷 Day 10: Drive from Pokhara (820m / 2,690ft) to Kathmandu (1,350m / 4,450ft)
🔷 Day 11: Departure from Kathmandu
(public display screen; National Museum of the United States Air Force collection, Wright-Patterson Air Force Base, Dayton, Ohio, USA)
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From exhibit signage:
NORTH AMERICAN XB-70 Valkyrie
The futuristic XB-70A was originally conceived in the 1950s as a high-altitude, nuclear strike bomber that could fly at Mach 3 (three times the speed of sound) - any potential enemy would have been unable to defend against such a bomber.
By the early 1960s, however, new surface-to-air missiles threatened the survivability of high-speed, high-altitude bombers. Less costly, nuclear-armed intercontinental ballistic missiles were also entering service. As a result, in 1961, the expensive B-70 bomber program was canceled before any Valkyries had been completed or flown.
Even so, the United States Air Force bought two XB-70As to test aerodynamics, propulsion, and other characteristics of large supersonic aircraft. The first XB-70A, on display here, flew in September 1964, and it achieved Mach 3 flight in October 1965. The second Valkyrie first flew in July 1965, but in June 1966, it was destroyed following an accidental mid-air collision. A third Valkyrie was not completed.
The first XB-70A airplane continued to fly and generate valuable test data in the research program until it came to the museum in 1969.
The Valkyrie's six large turbojet engines together provided an impressive 168,000 pounds of thrust.
The Valkyrie's airframe was built with advanced techniques and materials to reduce weight and to withstand high temperatures from aerodynamic heating at high speed.
The sleek Valkyrie took advantage of "compression lift", where the shock wave generated by the airframe at supersonic speed supports part of the airplane's weight. The XB-70A could also droop its wingtips as much as 65 degrees for additional stability at high speeds.
HIGHER AND FASTER: B-70 BOMBER CONCEPT
In the mid-1950s, the United States Air Force wanted a radically advanced new bomber that could fly much faster (Mach 3+ or 2,000 miles per hour) and higher (70,000+ feet) than the B-52 it would replace.
The revolutionary B-70 design promised to meet this demanding requirement. It would be expensive, however, and its survival could not be guaranteed against future Soviet defenses. In 1961 - before a prototype was built - the B-70 bomber program was canceled.
SUPERSONIC TEST VEHICLE: XB-70A
Although the bomber program was canceled, the United States Air Force ordered two XB-70As (AV-1 and AV-2) as pure test aircraft. Between 1964-1969, they carried out 129 flights, generating valuable data and knowledge regarding large supersonic aircraft.
The museum's XB-70A (AV-1) was the first one built and also the first Valkyrie to fly at Mach 3 (about 2,000 miles per hour). After this flight, however, it was limited to Mach 2.5 due to structural concerns.
The second XB-70A (AV-2) flew multiple times at Mach 3, including a sustained, 32-minute, Mach 3 flight in May 1966. Valkyrie AV-2 was lost in June 1966 afer an F-104 collided with it in mid-air. F-104 pilot Joe Walker (NASA) and XB-70A copilot Major Carl Cross (United States Air Force) died. North American pilot Al White ejected from the XB-70A, but was badly injured.
XB-70A TEST PILOTS
Seven pilots flew the Valkyrie:
- Al White (North American Chief Test Pilot) - made the most XB-70A flights, 67, including piloting AV-1 on its Mach 3 flight in October 1965.
- Colonel Joe Cotton (United States Air Force) - made 62 Valkyrie flights, including copiloting AV-1 on its Mach 3 flight in October 1965.
- Lieutenant Colonal Fitzhugh "Fitz" Fulton (United States Air Force / NASA) - made 63 flights and had the most time (124 hours) in the XB-70A.
- Van Shepard (North American)
- Major Carl Cross (United States Air Force)
- Don Mallick (NASA)
- Lieutenant Colonel Emil "Ted" Sturmthal (United States Air Force)
NASA AND THE SUPERSONIC TRANSPORT PROGRAM
The United States government encouraged supersonic airliner progress with the National Supersonic Transport Program. NASA used XB-70A AV-1 as its primary aircraft to investigate supersonic transport operations.
In 1971, the American supersonic transport program was canceled, in part due to the problem of sonic booms on the ground. Sonic booms are loud, explosive noises caused by aircraft flying faster than the speed of sound.
Later in the 1970s, however, the supersonic British / French Concorde entered commercial service and the Soviet Union briefly operated the supersonic TU-144.
SOVIET RESPONSE: T-4 BOMBER AND MiG INTERCEPTOR
During the Cold War, development of new United States weapon systems prompted Soviet reactions, and vice-versa. In the case of the XB-70, the Soviet Union tested a supersonic bomber prototype, the T-4, and developed a new Mach 3 interceptor, the MiG-25.
First flown in 1972, the T-4 prototype only reached Mach 1.3 before it was canceled.
Ironically, the MiG-25 entered service in 1970, one year after the XB-70 was delivered to the museum.
TECHNICAL NOTES
ENGINES: Six General Electric YJ93S of 28,800 pounds of thrust each with afterburner
RANGE: 4,288 miles
SERVICE CEILING: 77,350 feet
LENGTH: 185 feet, 10 inches
HEIGHT: 30 feet, 9 inches
WEIGHT: 534,700 pounds loaded
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Lake Hood Seaplane Base (ICAO: PALH, FAA LID: LHD) is a state-owned seaplane base located three nautical miles (6 km) southwest of the central business district of Anchorage in the U.S. state of Alaska.The Lake Hood Strip (FAA LID: Z41) is a gravel runway located adjacent to the seaplane base.
Operating continuously and open to the public, Lake Hood is the world's busiest seaplane base, handling an average of 190 flights per day. It is located on Lakes Hood and Spenard, next to Ted Stevens Anchorage International Airport, three miles from downtown Anchorage.
Although most U.S. airports use the same three-letter location identifier for the FAA and IATA, Lake Hood is assigned LHD by the FAA but has no designation from the IATA. The airport's ICAO identifier is PALH.
Facilities and aircraft
Lake Hood Seaplane Base has three seaplane landing areas: E/W is 4,540 by 188 feet (1,384 x 57 m); N/S is 1,930 by 200 feet (588 x 61 m); NW/SE is 1,370 by 150 feet (418 x 46 m).
Lake Hood Strip has one runway designated 13/31 with a gravel surface measuring 2,200 by 75 feet (671 x 23 m).
For 12-month period ending August 1, 2005, the seaplane base had 69,400 aircraft operations, an average of 190 per day: 88% general aviation, 12% air taxi and <1% military. There are 781 aircraft based at this seaplane base: 97% single engine and 3% multi-engine.
Weston Bike Night 13 09 2012
This weekly Thursday meet during the summer is based at the sea front in the sea side resort of Weston Super Mare, North Somerset, UK.
It is organised by the Riders Branch of the British legion, all bikes donate £1 to enter and all proceeds go the charity "The Poppy Appeal".
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All proceeds will go to the charity being supported by the event "The Poppy Appeal".
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Further Information
The Riders Branch of the Royal British Legion
Membership open to all who have a love of motorcycling and are in agreement with the aims of the British Legion
Weston Bike Night Website
On the 6th day of our unsupported adventure (which isn't entirely true, considering the amazing support of the tea house infrastructure along the trail), we trekked from MBC to the Annapurna Base Camp. Climbing another 1,200 feet when you're already at 12,100 (and live at sea level) is a long and slow endeavor. The world up there was white with snow, which intensified the sun. I started off with just my tights and gaiters, knowing I'd have to strip off layers the further we went. My hiking poles became the supports for my numerous rest breaks. We steadily made our way to ABC, where the mountains embraced us and dazzled us. Even the night sky revealed its dark expanse and bright stars, with the moon illuminating the mountains.
AirDrain Installed under Pavers on Walkway at the Oklahoma City Downtown Pedestrian Parkway 180
Oklahoma City has been receiving a facelift lately with the MAPS Program. With all of the improvements along the Oklahoma City River and a booming entertainment district in Bricktown, Downtown OKC has many projects that will make traffic and pedestrian travel easier.
One of the projects in Downtown OKC is the Pedestrian Parkway 180 near the Devon Tower. This will allow pedestrians to have access to multiple buildings from the parking garages and a shorter route from building to building while adding beauty to the downtown area.
Drainage in an area that is mostly hardscaped is typically a HUGE issue, but with AirDrain providing a 1” void beneath the whole parkway any drainage needs are met and exceeded! When the AirDrain is installed below paver stones it not only allows water to flow to the exit drains, it also provides a strong platform for the pavers to lay evenly on. With no large unsightly drainage grates in the foot path for people to trip over or fall in.
Approximately 17,000 sqft. of pavers installed by Elevated Paver Systems completely covers the AirDrain beneath all of the landscape and hardscape features. This means the 1” of air hidden below can drain over 171 inches of rain an hour!
AirDrain grid also provides stabilization, allows for water lines, electrical lines and even radiant heat tubing can be installed below the surface.
Here is the ASTM D4716 Flow Rate per Unit Width and Hydraulic Transmissivity Testing for actual drainage capacity, at a 1/2% slope. The AirDrain will actually drain 171 inches per hour.
Installer:
Adam Fink
Elevated Paver Systems
P 918.916.5422
adam@okEPS.com
4 NE. 10th Street #428 Oklahoma City, OK 73104