More weight for the wheel brakes to work.
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Just out of curiosity - Airplane Guys
- Thread starter Downeaster
- Start date
Bingo. Flaps generate lift... makes the airplane lighter. Dump the flaps and there's lots more weight there to stop the wheels from skidding.... more bite.
Large commercial aircraft function that way. They are equipped with auto-spoilers and autobrakes, as well as thrust reversers. As soon as weight on wheels is detected, the spoilers automatically deploy, killing the lift. The flaps can't move fast enough to get stowed before the end of the runway, so the spoilers do it. When on a commercial flight where you can see the wings, watch on landing. You'll see the spoilers pop up as soon as you feel the tires touch, then the captain deploys reverse thrust.
Heard that of Motorcycles Modern bikes have double discs in the front and can lift the rear wheel
First apply brakes back and then thereafter more on the front .
But then you have to let go of the rear brake or it can loose grip and the rear end comes sideways.
Speedway style
Not quick enough the wheel can catch and send you up in the air on a Highside
Loosing the rear wheel grip can be saved if alert But loosing the front wheel grip if immediately pull full braking in front.
And is is more difficult especially in a corner bike falls over on the low Side ..
Electronics helps if it works
Yup, read back at the top of the page. Marty called it.
Oshkosh... I am 45 minutes away. I have a comfortable lower level with full bath, refrigerator, bar and fold out queen used only by 8-10 year old granddaughters (it isn't sagged out yet) and a 14x16 open area (granddaughters play area) for cots, pads and sleeping bags, whatever. Big screen and wifi. Private enterance with 6 steps below yard level and 0lenty of windoes/light. I would hope to get a bottle of Scotch or Irish whiskey per nite. Jameson or Johnny walker, we don't need fancy. If budget is tight, skip the whiskey and trade stories...
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Cool you get to taxi those beasts. I taxi d my brother's 2 place ultra light after a couple of beers. Goosed the 36 hp rotax and an accidental 10 feet elevation never seemed so high.
I hope this was the take off and not the landing! 
Kills lift.
In the full sized German machines they found, I have read, that the lateral shock waves from the pipe rapidly caused fatigue in adjacent structure of airplane, unless the pipe extended beyond the structure. In the model, and yes it's impressive!, this design is not followed. I'd be interested to know how long the model lives, but well, it's not going to get so many hours and it may be made from forgiving materials. Still, it would be nice to know more about how it works out.
Hey jan! dual disk is not necessary. a soft set of telescopic forks will do it. Rocker/swingarm forks are better in this regard. Endo is hard on the knees...and can be done at quite modest speeds. I run 40W in my XS forks, and they're still a bit soft. If up to me I chose cable and drum, and foot clutch (easier on old guy arthritis). "Electronics"? Never heard of him... No trust...
https://w6rec.com/wp-content/uploads/2018/08/Earles-fork-left-side-1.jpg These don't dive...of course you can still lock the wheel...
Best!
From comment #183 above....
"Flaps generate lift... makes the airplane lighter. Dump the flaps and there's lots more weight there to stop the wheels from skidding.... more bite."
Paleomechanic
XS650 Addict
Flaps….it’s all academic until you try and three point an L-19 on a gusty day ….
Pulsejets...just remembered trivia about US experiments in the postwar period. Reed valve life is bigbig problem. In liquid fuel pulsejets like V1 the reed valve life may be extended by an order of magnitude, roughly speaking, by adding oils (various were tried) to the fuel. This, it is surmised, softens the reed-valve impact against its seat and thus the attendant metal fatigue and related failures. I'd bet it makes pretty smoke trails too. Making a static pulsejet in the shop using large twostroke reeds and a pumper carb has been on my mind for years. Bucketlist stuff. Best!
