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From: Robert Gill Sent: Wednesday, January 10, 2018 3:59 PM To: Rand Robinson KR-2S Aircraft Subject: [Rand Robinson KR-2S Aircraft] Hi all, lived to tell this tale,thought I would... Robert Gill posted in Rand Robinson KR-2S Aircraft . Robert Gill January 10 at 3:59pm Hi all, lived to tell this tale,thought I would let every body know and may be learn from this, yesterday while testing a new engine refit to a jabiru 3300 up front from the revmaster r2300 which was very problematic, during engine load testing to set the pitch on the new prop winding the engine up to try and get the level speed on the prop to 3200 rpm the plane went into severe flutter on the wings at 190Kt so instantly pulled into a climb to reduce speed and at the same time ripped right side aileron off, if I hesitated I swear I would have lost a wing or both, it pulled the centre of out of the wing aileron spar were the captive nuts were, edges remained bonded to the wing skins, and hinge remained attached to the plane by the bell crank but the aileron was disintegrated, the flutter was that sever I was bouncing in the seat and swear I saw the wings twisting about 4" at the tip, after climbing levelled the plane out at 90kt and assessed what had happened, still had pitch and yaw, roll was very limited and spongy and tended to roll to the left, found I could still fly the plane and keep the wings level with a bit of right rudder and carried out a an uneventful landing, on the ground found that the right side aileron was also damaged lost the mass balance and started to separate the control horn hence the spongy control on the stick, so now I have to take the wings home open them up inspect the spars and rebuild or make the wings due to my own stupidity of pushing the plane to its limits Like Comment Facebook Robert Gill posted in Rand Robinson KR-2S Aircraft. Robert Gill January 10 at 3:59pm Hi all, lived to tell this tale,thought I would let every body know and may be learn from this, yesterday while testing a new engine refit to a jabiru 3300 up front from the revmaster r2300 which was very problematic, during engine load testing to set the pitch on the new prop winding the engine up to try and get the level speed on the prop to 3200 rpm the plane went into severe flutter on the wings at 190Kt so instantly pulled into a climb to reduce speed and at the same time ripped right side aileron off, if I hesitated I swear I would have lost a wing or both, it pulled the centre of out of the wing aileron spar were the captive nuts were, edges remained bonded to the wing skins, and hinge remained attached to the plane by the bell crank but the aileron was disintegrated, the flutter was that sever I was bouncing in the seat and swear I saw the wings twisting about 4" at the tip, after climbing levelled the plane out at 90kt and assessed what had happened, still had pitch and yaw, roll was very limited and spongy and tended to roll to the left, found I could still fly the plane and keep the wings level with a bit of right rudder and carried out a an uneventful landing, on the ground found that the right side aileron was also damaged lost the mass balance and started to separate the control horn hence the spongy control on the stick, so now I have to take the wings home open them up inspect the spars and rebuild or make the wings due to my own stupidity of pushing the plane to its limits Like Comment View on Facebook Edit Email Settings Reply to this email to comment on this post. This message was sent to babyw...@aol.com. If you don't want to receive these emails from Facebook in the future, please unsubscribe. Facebook, Inc., Attention: Community Support, 1 Hacker Way, Menlo Park, CA 94025 _______________________________________________ Search the KRnet Archives at https://www.mail-archive.com/krnet@list.krnet.org/. Please see LIST RULES and KRnet info at http://www.krnet.org/info.html. see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options. To UNsubscribe from KRnet, send a message to krnet-le...@list.krnet.org
