Author Topic: Rip Off !  (Read 121 times)

Offline newt

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« on: January 20, 2000, 09:48:00 AM »
 Ok now that I have your attention, I was filming a dogfight with a 109 and had my wings rip off. A common problem I've been having in the 51 lately. Anyway here is a link for the film maybe you can tell me if it's me, a bad main spar or just bad luck on my part.
Thank Newt http://www.recomnet.net/~newt/film1.zip

Offline Maniac

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« Reply #1 on: January 20, 2000, 10:22:00 AM »
Havnt looked at your film yet, but ive had this problem for some versions now, i dive on an con in about 310-320 mph and i pull up slightly, i dont even get an hint of blackout or structural stress warning, but anyway my "outer" parts of the wings djust rips off. . .

Ive got this in the F4U most of the times but also in the p51.

Regards.

// -nr-1-
Warbirds handle : nr-1 //// -nr-1- //// Maniac

Offline tshred

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« Reply #2 on: January 20, 2000, 10:44:00 AM »
Sounds like both of you are suffering from stick spikes and/or not enough scaling of elevator, i.e. start low and increase gradually to 100%. If you have your stick set to start input from say 50% going up from there, any little movement from center is gonna give you 50% of travel! At hi speeds, this will be deadly. Stick spiking could also cause this. You have say 15% control deflection input and it spikes to 50% or higher all of a sudden could cause the same failure at hi speeds. Just some thoughts, I regularly fly the 51 and can safely pull out at 500 mph with no problems, but I have to be careful, very little stick input! Using trim is a better solution, but sometimes isn't fast enough. I had a few wing failures before the last update, haven't had one since they upped the stress settings.

Using a little dampener might also help if you tend to over control, which will allow you to move your stick more before any input occurs. If your stick is sloppy around the center you may need to adjust the deadband, that is if you can move it and not see any control input occuring immediately.

Hope this helps

ts

btw, I haven't seen the film yet either.

[This message has been edited by tshred (edited 01-20-2000).]

Offline juzz

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« Reply #3 on: January 20, 2000, 11:13:00 AM »
newt pulls +6.5 G's and both wings fall off at the roots. Possibly newt pulled more than +6.5 G's, because the film recording doesn't update the instruments very often.

The P-51D was limited to -4,+8 G's IIRC, so I think the wings would bend first, then fall off a bit over that, like +10 G's or more?

Offline MiG Eater

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« Reply #4 on: January 20, 2000, 01:42:00 PM »
 
Quote
Originally posted by newt:
Ok now that I have your attention, I was filming a dogfight with a 109 and had my wings rip off. A common problem I've been having in the 51 lately. Anyway here is a link for the film maybe you can tell me if it's me, a bad main spar or just bad luck on my part.

Did you have any damage to the wings?  That could be a factor.

MiG