Joined: May 05, 2009 - 10:31 PM
Posts: 7884
Location: OZ
Always good stories (or sad - depending on outcome) of Naval Aircraft and Park BRAKES on de main wheels. A classic story ashore (because generally the SKYHAWK did not have a Park Brake in Naval Service) was a Kiwi A-4K attempting takeoff with the (specifically fitted to A-4K by RNZAF) Park Brake applied. I'll post a photo later of the result to one main wheel/tyre.
The story is that before takeoff the A-4s with the 9,300lb thrust J-52 P-8A/C engines anyways ran up the RPM to 85% to check the manuel fuel control by at that RPM switching to MANUAL and then back again. Then going to full power for takeoff if all otherwise OK. Keeping the aircraft still at 85% was a chore initially due lack of leg muscle power for newbies (which quickly developed BTW) and one didn't want to stay at that RPM for too long messing about. I can only imagine that the Kiwis (RNZAF) did this Manual Fuel Check with the Park Brake ON or only some did it that way. Anyway this particular A-4K went down the runway at full power until it was realised that YUP the Park Brake was on (switch on the front panel). Another trick was to stomp on the brakes too soon during lift off to then slice through the tyres cleanly because part of the tyre was still attached to the runway.
The moral of the story if there is one is to NOT takeoff with the brakes on. For Naval Aircraft being catapulted this is a big issue. For example it is a hazard in the Goshawk T-45C to inadvertantly depress the brake pedals before catapulting so students are warned about this issue beforehand.
I guess the Su tyres were faulty afterward if indeed the brakes were on during that takeoff seen on the video.
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