Sunday, April 20, 2014
"A few days ago I took out the 338 Lapua and attempted the 2500 yard shot. So I placed the target at 2530 yards or 1.43 miles away, at that distance the bullet flight time is almost 4.5 seconds! Made a short video that I think you guys will enjoy. I went out early in the morning to beat the mirage, luckly there was very little wind around 3-4 mph coming from the left, I dialed 2.6 mils Left. I had to dialed the maximum elevation my scope (Nightforce NXS 5.5-22x56 MIL/MIL) had at 27.4 mils then held over 2.5 mils on the reticle to get me to 29.9 mils."
Monday, April 7, 2014
Sunday, April 6, 2014
Wednesday, March 26, 2014
Tuesday, March 18, 2014
Friday, March 14, 2014
Monday, March 10, 2014
Thursday, March 6, 2014
Sunday, March 2, 2014
Friday, February 28, 2014
Thursday, February 27, 2014
A prototype Mars parachute is pulled from the sky with a rocket sled. The test applies the correct aerodynamic force to a parachute that is too large to fit in any existing wind tunnel.
The successful test approach allows engineers to study issues and improve parachute design.
MH-60S Knighthawk Helicopter, 4000 ft Drop Altitude
135,000 lb Sled
100,000 lbf of Pull
Thrust 50,000 lb
Tripod Structure 2,000,000 lb Concrete Anchors
300 hp Winch to Fish in Parachute
2600 ft 1-5/8" Technora® Rope (produced by Samson) 2000 lb Pulley
JPL clearance number: CL#14-0516 NAWCWD clearance number: 13-0171