Just look at the Ho229 influence on this B-2!
I remember reading a long while back that the FSW became highly unstable the closer it got to Mach,and would disintigrate at, or above, Mach.
I also remember a guy I know with close ties to the USAF tell me that the F-16 pilots have been instructed to punch out if one of the two stability control computers goes out.
If I am wrong-please correct me.[:D]
Allen, I have often woundered what happened to the American FSW project. I wounder if these problems would be solved with modern computers.
I think Allen109’s comment on aeroelastic instability going up as speed increases is the main obstacle to a production aircraft entering service. The only FSW aircraft so far that has gone beyond the prototype stage is the Hansajet. But I believe the FSW configuration was selected to keep the spar behind the cabin, and the sweep angle was modest. Plus no dogfighting allowed with a bizjet!
Bringback the Flap-Jack
Just realized this thread is from 2011 and is still alive.
There’s no way that thing could possibly fly. LOL!
But it did! The unusual layout was in part to offset engine torque, which it seems worked out well for the earlier BV-141A-0 series with the smaller (BMW Bramo?) engine. The story goes that the RLM deemed the A series underpowered, so Blohm und Voss replaced the Bramo with a BMW 801 series engine (like the Fw-190 used), but the plane suffered vibration problems and combined with a new offset tailane, the delicate balance in the A series was lost.
All, one of the biggest issues with swept forward wings is that they twist in such a way as to increase the manuever. Start a roll and unless the wing is stiff enough, you get the wing helping out. The larger the control surface delflection, the greater the twist. Could take the wing right off if it got out of hand. That is one reason the Hansa jet had such a heavy structure. Swept forward wings do stall nicer than conventual wings, maintaining roll control well into the stall range since the tips stall last. As I recall, the X-29 FSW concept plane didn’t offer enough advantages relative to an F-16 at high AOA manuevering to justify building one in production.
John
[quote user=“BigJim”]
Bringback the Flap-Jack
[quote]
LOL !
I enjoyed building that kit.
Kit was even better when I was able to watch the wings flap.[whstl]
Shame the motor wore out.
It’s Zombie season…and Zombies don’t die…[:O]
It’s Zombie season…and Zombies don’t die…
And “The Walking Dead” restarts next week - how convenient! [:D]
The F-4D was influenced by the work of the Lippisch Brothers.