Very Hard Landing

[bruce]

Have already sent pics to Bolly. Their reply was that something flew into the prop. It was noticed that at 4000rpm there was a very slight vibration that disappeared completely above or below those revs. Only noticed it during a slow descent and didn"t really think it an issue at the time as there was no real need to sit in that rev range. Had planned to monitor it over the next few hours as the motor was still bedding in.Bruce.

[kingo]

Hey BruceHave you got a pic of your keel, were the prop

[bruce]

Brett, had that same thought myself. Went out today and checked the stone guard, not a mark on it.Bruce.

[birdy]

Their reply was that something flew into the prop. Naturaly.You gota get an unbiased expert mate.Iv seen alota props that have struck sumthn, and its always the leadn edge [or just in from it] that cops it.For the damage youv got, theres no way anythn struck it.

[jeff b]

Airborne Australia have used Bolly props successfully for many years on their trikes. The reputation is generally quite good. Ive owned 3 on different aircraft which gave great service. I found the duratuff leading to give really good protection from stones. However, this doesn"t mean you can exclude a quality control issue. A difficult one to reach 100 percent conlusion. Sorry to hear.

[Des Garvin]

Looking at the three pics of the prop where you are showing the piece of the end of another blade, the question on that is, was that the particular blade that was pointing at the ground contact when the machine decided to have a snooze in a different attitude. Knowing the type of ground in the area you were flying at, it is hard and the weight of the machine would cause the piece to be removed on static contact. Next question is what is the red material in the shock buffers and how hard is it?That reminds me of a similar landing at the last nationals at Lameroo I attended. And that person has his machine up and flying again just fine, So you can too Bruce.

[GraemeMonro]

Looking at the three pics of the prop where you are showing the piece of the end of another blade, the question on that is, was that the particular blade that was pointing at the ground contact when the machine decided to have a snooze in a different attitude. Knowing the type of ground in the area you were flying at, it is hard and the weight of the machine would cause the piece to be removed on static contact. Next question is what is the red material in the shock buffers and how hard is it?That reminds me of a similar landing at the last nationals at Lameroo I attended. And that person has his machine up and flying again just fine, So you can too Bruce.

[Des Garvin]

Frogs were not ment to fly.I would be careful with that one Graham as the same person gets real kicks and bright sparks out of line of employment they are in, ya just never know when those kicks and sparks my get redirected.

[GraemeMonro]

Tell him to spark away till his heart is content Mr Garmin.Graeme.

[bruce]

Des,
..........

[Des Garvin]

Thanks for the info on the shock material. Another question how hard do you run your tyres? Ihave noticed that there are a number of pilots have their tyres hard as and in a cas of a hard landing there is no give which loads up the rest of the suspension big time. With wheels one will find that they roll easier when they are a little squashy as the ground contact area has less kg/square millimeter plus they soffen the ruffness. Cheers Des Garvin

[bruce]

Not sure what pressure was in the tyres but they bulged a bit at the bottom. To be honest though, I don"t think it would have made any difference, I hit pretty hard.

[GraemeMonro]

Thanks for the info on the shock material. Another question how hard do you run your tyres? Ihave noticed that there are a number of pilots have their tyres hard as and in a cas of a hard landing there is no give which loads up the rest of the suspension big time. With wheels one will find that they roll easier when they are a little squashy as the ground contact area has less kg/square millimeter plus they soffen the ruffness. Cheers Des Garvin You have got me thinking there Des, I am going to have to do a bit of reading now as I was under the impression that the tighter/harder a tyre was the easier to roll. In my bicycle riding days we would go to 100psi in the tyres for less resistance.????Graeme.

[Mark Horan]

Looks to me like a blade failure,I have buggered a few and never seen one like that. if they hit the ground while running the usually snap off at the root somewhere, the damage to the end of the other one could be from when the rotors drove themselves into the ground, flicking up and hitting the end of the prop blade. I am amazed the the motor wasnt running at the time you "landed"Mark.

[birdy]

You have got me thinking there Des,Thinkn ol Des has been diggn holes too long. The harder the trye, the harder the ride n the easier the roll.How often have you hada flat tyre Des, n felt the car drag to that side?Hada flat years ago on the ferel, tryed to take off anyway but couldnt keep it streight, so i flatened the other side tyre n tho it took more soot to get go"n, at least i was still on the road.