I don't know about the 62" Warp but my three blade 54" weighs in at 1974gms for the hub and 842gms for each of the blades. Total is 4.32 kg or only 9.5 lbs. I just replaced the Warp blades with Aussie Bollies (similar to Kool blades) which turn the other way due my new gearbox. These are 60" yet weigh only 684gm each which, with the same hub gives only 3.85 kg or 8.5 lbs. I doubt you can get lighter ones. I sent a photo of the two blade types to Mark L a while back which came from Murray Green in Canada.
I think 2 blade on 4 cylinders could have less balance/vibration issues than a 3 blade if clocked correctly. Similarly a 3 blade on a 6 cylinder might be inherently better....just a personal view...no evidence here William...sorry :-) We've had several instances of VWs (and 4 cyl Jabirus for that matter) disliking composite 3 bladers. See Ya John Martindale 29 Jane Circuit Toormina NSW 2452 AUSTRALIA ph: 61 2 6658 4767 (H) mob: 0403 432179 email: johnja...@optusnet.com.au web:www.members.optusnet.com.au/johnjanet/Martindale.htm -----Original Message----- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net] On Behalf Of STEVE bennett Sent: Friday, 29 May 2009 11:42 PM To: krnet Subject: KR> (no subject) If the prop has an aluminum hub to support the blades, I would not use it on a direct drive VW. 5 knows failures of Warp Drive 3 blade props on direct drive VW based engines, personal experience over 28 years. Unclear wheather its torsional vibration or simply overloading the crank because of the spinning weight, or a combination of both. The 3 blade Warp Drive 62" props weigh in at about 13 lbs if memory serves. During airboats years, I did run a Power Fin 3 blade on a stock 1600 cc pusher for about 50 hours. The Power Fin weighed 7 lbs. The big difference is in the weight of the blades. Not enough running time to draw a conclusion. Steve Bennett ifly...@msn.com _________________________________________________________________ Windows LiveT: Keep your life in sync. http://windowslive.com/explore?ocid=TXT_TAGLM_BR_life_in_synch_052009 _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.339 / Virus Database: 270.12.46/2142 - Release Date: 05/29/09 17:53:00
