Thread: 2stroke outboard

Originally Posted by XR500

There's been some pretty impressive tech advances with those Etecs. Our Defence force has recently upgraded to the military version for all its OBM useage: quiet, economic, waterproof (drop into a swamp to hide it then retrieve later and bolt back on and off you go) and most interestingly, multifuel. But ohh! how expensive 30K for a 55hp

Can't have petrol onboard any USA military platforms.

Buggered if I know how they get on with chainsaws then...

How do they make their outboards so quiet? I met a guy who was surf casting at night and reckoned an inflatable with a bunch of navy or army dudes ( too dark to make out uniforms I guess) in it turned up down the beach from him and he never heard them coming.

Not sure if the multi fuel hybrid two wheel drive trail bike they we’re developing ended up going into production but it looked cool SilentHawk Hybrid-Electric Military Motorcycle | ATV Illustrated

Originally Posted by paremata

How do they make their outboards so quiet? I met a guy who was surf casting at night and reckoned an inflatable with a bunch of navy or army dudes ( too dark to make out uniforms I guess) in it turned up down the beach from him and he never heard them coming

Something about waterproof cowling, exhaust design, engine mapping, injectors etc etc.

https://www.marineenginedigest.com/p...l-Outboard.htm

Originally Posted by paremata

Not sure if the multi fuel hybrid two wheel drive trail bike they we’re developing ended up going into production but it looked cool SilentHawk Hybrid-Electric Military Motorcycle | ATV Illustrated

Alta, the brains behind the concept went Tits up about 5 years ago. But their promo video of the dirt bike they were designing/building was MOST impressive