SlamClick From United States of America, joined Nov 2003, 10062 posts, RR: 66
Reply 9, posted (8 years 9 months 2 weeks 2 days 21 hours ago) and read 15505 times:
Quoting Bobster2 (Reply 8): You could probably use less water if it's only for the airplane.
Here's how: Make a pair of V-shaped troughs fitted to the floats. Have a high-speed waterpump and distribution system. This system sprays water into the troughs just ahead of the floats, scavenges it from just behind them and redirects it to the next section just ahead. Repeat until airborne.
conducting ops in Gatun Lake and Manzanillo Bay Panama. When they took off out of Manzanillo Bay from the old Panagra ramp, they angled toward the opening in the rompeolas, the breakwater at the Caribbean end of the Panama Canal. The reason was takeoff distance. From the back of the bay straight toward the breakwater was (according to GoogleEarth) about 9500' and they were not sure they could clear the 6 - 8 foot high concrete barrier. Angling out toward the opening they had about 16000' The performance was even worse in Gatun Lake because it is fresh water - less buoyancy.
Manzanillo Bay has seen a lot of flying boat ops. I've seen pictures of Consolidated Commodores and Sikorsky S-38 and S-43 flying boats from Panam, Panagra and Uraba-Medellin Airways. There was at least one Commodore at the bottom of the bay. Never did see a picture of a Martin 130 or Boeing 314 there though.
Happiness is not seeing another trite Ste. Maarten photo all week long.
ElpinDAB From United States of America, joined Apr 2005, 489 posts, RR: 4
Reply 10, posted (8 years 9 months 2 weeks 2 days 21 hours ago) and read 15505 times:
I've flown an Aviat Husky on straight floats with 200hp (which is 50hp more than the Super Cub pictured here, but besides that, same wing and basically the same plane.) It had amazing performance....with 2 people and a full tank of gas, we lifted of the water within about 5 seconds of putting in full power. I don't know how many feet that would be though... (Much better performance than the 235hp Maule I've also flown). There's also a technique you can use called a confined area takeoff. With one of these, you step taxi around the lake until you apply full power to take off. Using this technique, you could probably take that Super Cub off on a lake that's so small it would scare you. (If you knew what you were doing, that is.)