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View Full Version : Is Hellcat's undercarriage modeled right ?



majnos64
09-06-2006, 08:32 AM
I was looking at documentary roaring glory: F6F Hellcat and there was said that Hellcat according to the manual is able to use its gear as a dive brake up to 350 kts(~650kph) TAS. I tested this in PF 4.05m and conclusion is: it couldnt take more than 550 kph TAS. Does anyone have this manual and can approve this ?

majnos64
09-06-2006, 08:32 AM
I was looking at documentary roaring glory: F6F Hellcat and there was said that Hellcat according to the manual is able to use its gear as a dive brake up to 350 kts(~650kph) TAS. I tested this in PF 4.05m and conclusion is: it couldnt take more than 550 kph TAS. Does anyone have this manual and can approve this ?

LEBillfish
09-06-2006, 08:52 AM
Well, that's fairly fast.....and any airbrake applied at too high a speed becomes so many falling parts if used above a safe limit. Good luck on your search though, finding a statement in a credible manual vs. just relying on some TV show is the way to get things corrected here. http://forums.ubi.com/images/smilies/25.gif

IL2-chuter
09-06-2006, 08:54 AM
Yep, gear was modified for use as airbrake . . . just like Corsair's. At higher speeds the gear would only partly extend due to the hydraulic system's inability to overcome airloads . . . just like Corsair's.



Have a nice day . . . http://forums.ubi.com/images/smilies/16x16_smiley-happy.gif

R_Target
09-06-2006, 11:52 AM
I'm impressed that you got to 550kph before it shredded. Here's the page from Hellcat pilot's manual:

http://img472.imageshack.us/img472/1039/catgear1xu0.jpg

If you have the Roaring Glory DVD, most of the manual is on there.

LEBillfish
09-06-2006, 12:08 PM
Good responses guys I didn't know that....Was that a design feature or simply the mechanics couldn't over come it?

R_Target
09-06-2006, 12:24 PM
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by LEBillfish:
Good responses guys I didn't know that....Was that a design feature or simply the mechanics couldn't over come it? </div></BLOCKQUOTE>

I'm going to guess that it was designed as a fail-safe, that maybe happened to make a good dive brake. From what I've read, I don't recall any pilots making much mention of using it that way.

OMK_Hand
09-06-2006, 01:12 PM
Hi majnos64.

That's interesting. I have the 'Flying the Gr****n F6F Hellcat' DVD from Zeno's, and there's no mention of gear-as-dive-brake in the training film, or in the full manual (F6F-3, F6F-5, 5N) on the disk. Very interesssstiiiing....

majnos64
09-08-2006, 02:54 AM
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by R_Target:
I'm impressed that you got to 550kph before it shredded. Here's the page from Hellcat pilot's manual:

http://img472.imageshack.us/img472/1039/catgear1xu0.jpg

If you have the Roaring Glory DVD, most of the manual is on there. </div></BLOCKQUOTE>

you re right - in roaring glory was said that undercarriage won't lock above 135kts but it could be used as a dive brake

R_Target
09-08-2006, 03:33 AM
Now that I think of it, there was a Hellcat pilot that dropped his gear and joined up with a flight of Vals over Orote, Guam, and shot several of them down.