Why nose pitched up during take off?

[Gyro-nut]

In fact, a single place gyroplane with the mains too far back and with a hang test that is near the limit for a nose down set up, the mains can and will come off the ground first resulting in the gyro cartwheeling down the runway and potentially rolling over. Especially after reducing the throttle to abort the takeoff relieving the propeller induced drag that is keeping the back of the machine from lifting up.

Whoa.... I've never seen that but it certainly does not sound like a good time

 

[WaspAir]

In fact, a single place gyroplane with the mains too far back and with a hang test that is near the limit for a nose down set up, the mains can and will come off the ground first resulting in the gyro cartwheeling down the runway and potentially rolling over. Especially after reducing the throttle to abort the takeoff relieving the propeller induced drag that is keeping the back of the machine from lifting up.

Perhaps you mean "wheelbarrowing" rather than "cartwheeling"? The latter sounds like tumbling end over end to me, which would be pretty extreme.

 

[AviomaniaTexas]

Perhaps you mean "wheelbarrowing" rather than "cartwheeling"? The latter sounds like tumbling end over end to me, which would be pretty extreme.

Duh, of course I mean wheelbarrowing!

 

[rbabos]

Is it a requirement for the nose on an gyro to pitch up during take off? Why cant a Gyro be designed with the main wheels moved back to stop the nose pitch-up and take off with a level air-frame attitude? Seems to me that over pitching during take off causes accidents.

A normal take off is done balanced on the mains. It leaves the ground in a nice gentle climb out manor. If you can't do that the mains are likely too far forward. I've run into this years ago following the Benson plans, based on the McCullough engine but using a VW instead. It was a pain on take off. Once the mains were moved back about 2-3" the take offs were text book.
Ron

 

[j4flyer]

The Barnett and Bandit have the main gear a little more rearward than most Gyros. They takeoff in a flatter, more fixed wing style of roll. The nose wheel still comes off the ground but only for a few seconds before liftoff. After liftoff you still need to lower the nose to gain airspeed and climb. The trade off is they take more ground roll. I can’t say one is better than another. If you get lessons you shouldn’t have problems in most Gyros.

 

[Greg Vos]

Reading this thread I now understand why we have such high insurance on gyros…
Spend some more time with a competent instructor, learn the various take off techniques and master them …there are are also various landing techniques for good reason.