Quote:
Originally Posted by RH77
My questions for the "ecoJet" design: - How does the gearbox reduce the prop noise? Propellers are generally "Featherable" meaning they twist to produce zero forward thrust (or a reversing/resistance action), or angled to produce forward pull (controllable). They make noise in the variety of settings.
- Wings swept forward = less stability. I wonder if complex computer-controls and systems (similar to the F-16 SFW) will be required to maintain stability.
I can't recall seeing a twin turbo-prop, fuselage-mounted engine layout with a low-wing setup. Cool!
Review: Props are efficient, safe, and hopefully making a comeback.
Great link, Laz!
RH77 |
I not sure about your question but I think the gearbox is just slowing down the propeller rotation speed. The lower the rpm the quiter.
The forward sweep wing has been around for a very long time. This is fast and a very stable platform with lots of room inside. This is a
pic of it. There are probably less then a half dozen left flying in the US 15 years ago so there probably are not any around now. They have a tendance for corrosion and the cost to repair was not worth it. The company that had one sold it to a production company for a plane crash scene when it was deemed unairworthy due to the corrision.
