X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.3 cv=G+5i7Os5 c=1 sm=1 tr=0 a=FsYMG7b7EoEjZSrbMZMKDQ==:117 a=jpOVt7BSZ2e4Z31A5e1TngXxSK0=:19 a=J70Eh1EUuV4A:10 a=FmhdDS3HEQMA:10 a=r77TgQKjGQsHNAKrUKIA:9 a=YT3Yr15HAAAA:8 a=o1OHuDzbAAAA:8 a=7g1VtSJxAAAA:8 a=Ia-xEzejAAAA:8 a=27A_EGo6_LHjtDl3DacA:9 a=QEXdDO2ut3YA:10 a=Qa1je4BO31QA:10 a=gvSQh4r-fQ0A:10 a=4PR2P7QzAAAA:8 a=anrJAfsExxaUIIx0cWIA:9 a=xA76tsm3uqVL_yxX:21 a=_W_S_7VecoQA:10 a=wTiroRwonzHjqvaCcHYi:22 a=5YQ6H4ZxyGn-KoBYtt8s:22 a=grOzbf7U_OpcSX4AJOnl:22 a=Urk15JJjZg1Xo0ryW_k8:22 a=4dqwQCo7Po2mVW515mGf:22 From: "Finn Lassen finn.lassen@verizon.net" Received: from sonic308-2.consmr.mail.bf2.yahoo.com ([74.6.130.41] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 12916519 for flyrotary@lancaironline.net; Mon, 02 Sep 2019 12:47:08 -0400 Received-SPF: pass receiver=logan.com; client-ip=74.6.130.41; envelope-from=finn.lassen@verizon.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=verizon.net; s=a2048; t=1567442810; bh=b7r1mmmwuZoK7PH6KVMbXhyioTkiE05DQrBP61esUhw=; h=Subject:To:References:From:Date:In-Reply-To:From:Subject; b=rbHb0j7rhlzOFNUxKSsYHytOvidkyzyfEDwWB0AuJAzRgLbIPQNm2s8erctoscfWmUwIz0daZtxEW+vfTsPrILjyeAXvyFYqaga+w4IRAOis2lrY5W+s5NTHfNhF7taUjkJUXoxNZ1eo6j8kVzMlymzgIYqQaYeAEiGj2HBj3eFD0BVdaW9XqDaITwefp4bm3y6swtg8qRMAqJeQVr+TjS8vExvFGsuXq1whYSrdCEuFnHHf+FJMYMbyBAugDnNINSHzUQyZ2x3FaV4N015x8oGdIn2vDD8bOQcDQx3JtqfOypU28D4Ejc6h/5UVaqWDJhntLmEX5zpISQrhFtHSdg== X-YMail-OSG: glTFJgoVM1nffiS1NrWc3Q_l2rNN.r7zLbkE2dTjtqlZG7tXpYdMfe_zJy94V0. WdJVBYGFFW.LYNewgMnw3FYQVzSWqzKj4OkmJggGHCy1e.hC2NFZf0sr0bDCHf0kvByD9zgR06O8 dXXTZLlN.tqoKfrBDHsWASIJgC.TxeMpvTKFH03tde1BcNPaNYyxIxIaxqpnNTojPVi3GN_TPucj ym8_7uWUqmzcB4HppbvaUYuv5jz8C2kc9ehQzcOD7j0BWw7TWTx.xD9yK5nzMYCY4wUyEGu8vSjD E.3PuxMna19CaHp_wkwP74.pCI0fmuaPqOTpE63KQZAQlOV.fARBJVTC_nvV379YfF.4.6xTG8b_ WLB6KbC0HZ_fE_NiCGk284TeXF3dSryTvOCRlB2DZ._65aKiEMgszyTn9keLs9LUyfCpIFzEbx0Y O9.zSvw3Lte6t2jV.i2jTIWWxevamg3MMmWAYuQGLL7phleRaI2OHegPRHthQI6mU2TowzM49Oe2 tySvp27F195k9zWAnZFKCN1gJK1gLLXxP831IkprpnqdS._stMFRrQOtefBrP9dSzbbRV66Jk3Y6 B2TpnHRI9zhYIX7N2EleZxKyg5lK7L3qpWfJ_ANKqkqwFKCo1mZgmll4Qx_AVi3mDH4vPVrme2Tk RZxW5JFU1x360EEHT6dhHw5On6MIuM_Q7kMHXQebd9oZFBvUvdX4I8y8.scYjPRiDoRpgqC4ue1c pPewyqrybob.d.eCjtTzTzAFgTy.oUefiPb92spSViFUshkn4niiw65DdMcJv1gyHRDmzrJk_NkQ eKMlDIW5gR9NctiPR.GtBvuvfyiU1IW7NSXdSfdg39oPINF.FBNKPgAWtDyYssET4PJQNElzf1f1 RgfvzHSjH05Pyf72TaXioQuYwf6aKUq1ofJqYUBV4.V_cuD7vu7fLTC03d6tsFmk_U532YQvpOn_ 4QRGjX7gD7k4Qmhc3i.hhrPZ3CuWvWiiwvbPVKhrmUxuTFOMtDMMuNyOc0Q1T6tvaIOpDaAZJXE3 XNMJpMWM4JVeuKsYsDOFeYEcU9hs_PQkRIJ33I8Ci0JhSa_Ipx3nRMM..Diuaa5hb43joAZfiI4A .JasoB2vDLrKK67RGJlrsdBc1zNuC.iMwyWC4mv0i..dBqaXLfSL4HWUyi2ml1gV9rox_kvJxP4r 1W85qw4cwte4P9mE8kibgEb2KNBE4RhruXcxG8cViUoHBuyfJ1tXAJt3U2SITD0UIEhtkNIKihHW 9H0xEy6zwo1E4ssrakBcSCTxLIKcGR3oufX4- Received: from sonic.gate.mail.ne1.yahoo.com by sonic308.consmr.mail.bf2.yahoo.com with HTTP; Mon, 2 Sep 2019 16:46:50 +0000 Received: by smtp429.mail.bf1.yahoo.com (Oath Hermes SMTP Server) with ESMTPA ID 63db8e3686d9b75e2515082ed219c095; Mon, 02 Sep 2019 16:46:48 +0000 (UTC) Subject: Re: [FlyRotary] Re: Highest successful Mazda Rotary HP? To: Rotary motors in aircraft References: Message-ID: Date: Mon, 2 Sep 2019 12:46:45 -0400 User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/alternative; boundary="------------C9FE4C14BF8E2C5CECF700BD" Content-Language: en-US This is a multi-part message in MIME format. --------------C9FE4C14BF8E2C5CECF700BD Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit I don't know of anyone that have reached 2,000 hours on the same engine and re-drive. Most rotor heads love to tinker. Tracy Crook, probably one of those with most hours, upgraded to a re-drive of his own design from the Ross drive. First to a 2.17:1, then 2.85:1. He also changed from a junk yard 13B to a Renesis. Looking at the wear of the 13B, it could easily have reached 2,000 hours. The 13B/Renesis making 180 HP should have no problem reaching 2,000 hours, /provided it's properly cooled/. This appears contrary to David Leonard's experience, so he'll have to chime in regrading his reasons for overhaul (what kind of wear?). Note that his is turbocharged. Tracy would typically cruise on 75 HP -- 160 mph -- in his RV-4, so maybe his data may not be typical. But that would be 160 x 2,000 = 320,000 miles. Considering the low cost to overhaul a 13B, even 1,000 hours would be acceptable to me. I only have 850 hours in two 13B powered RV-3s. 575 hours in the first. The rest in my current RV-3B which has 500 hours on it. Finn On 9/2/2019 11:00 AM, Kent Bedford kbedford@alphalink.com.au wrote: > Sorry I was more after personal experiences as to what HP they have > successfully/reliably been able to operate with in conjunction with a > PRSU. > > On 3/09/2019 12:37 am, Finn Lassen finn.lassen@verizon.net wrote: >> I would say 180 for a 13B (2 rotor) and 270 with a 20B (3 rotor). >> >> Yes, there are some turbocharged, ported, etc. but the above seems >> the generally achievable. >> >> Finn >> >> On 9/2/2019 10:02 AM, Kent Bedford kbedford@alphalink.com.au wrote: >>> New to the list, and doing some research for an aircraft >>> design/build project. >>> >>> Up to what horsepower have people on this list been successful with >>> in aircraft??? By successful I'm talking 2000 TBO sort of success >>> not rate of climb record specials or anything like that. >>> >>> >>> -- >>> Homepage:?? http://www.flyrotary.com/ >>> Archive and UnSub: >>> http://mail.lancaironline.net:81/lists/flyrotary/List.html >>> >> >> >> -- >> Homepage: http://www.flyrotary.com/ >> Archive and UnSub: >> http://mail.lancaironline.net:81/lists/flyrotary/List.html >> >> > --------------C9FE4C14BF8E2C5CECF700BD Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 8bit
I don't know of anyone that have reached 2,000 hours on the same engine and re-drive.

Most rotor heads love to tinker. Tracy Crook, probably one of those with most hours, upgraded to a re-drive of his own design from the Ross drive. First to a 2.17:1, then 2.85:1. He also changed from a junk yard 13B to a Renesis. Looking at the wear of the 13B, it could easily have reached 2,000 hours.

The 13B/Renesis making 180 HP should have no problem reaching 2,000 hours, provided it's properly cooled.

This appears contrary to David Leonard's experience, so he'll have to chime in regrading his reasons for overhaul (what kind of wear?). Note that his is turbocharged.

Tracy would typically cruise on 75 HP -- 160 mph -- in his RV-4, so maybe his data may not be typical. But that would be 160 x 2,000 = 320,000 miles.

Considering the low cost to overhaul a 13B, even 1,000 hours would be acceptable to me.

I only have 850 hours in two 13B powered RV-3s. 575 hours in the first. The rest in my current RV-3B which has 500 hours on it.

Finn

On 9/2/2019 11:00 AM, Kent Bedford kbedford@alphalink.com.au wrote:
Sorry I was more after personal experiences as to what HP they have successfully/reliably been able to operate with in conjunction with a PRSU.

On 3/09/2019 12:37 am, Finn Lassen finn.lassen@verizon.net wrote:
I would say 180 for a 13B (2 rotor) and 270 with a 20B (3 rotor).

Yes, there are some turbocharged, ported, etc. but the above seems the generally achievable.

Finn

On 9/2/2019 10:02 AM, Kent Bedford kbedford@alphalink.com.au wrote:
New to the list, and doing some research for an aircraft design/build project.

Up to what horsepower have people on this list been successful with in aircraft??? By successful I'm talking 2000 TBO sort of success not rate of climb record specials or anything like that.


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