---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Sat 03/17/07: 12 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:42 AM - Firefly tube (Jimmy) 2. 07:03 AM - Re: Firefly tube (John Hauck) 3. 07:59 AM - Re: Firefly tube (Jim Dunn) 4. 09:55 AM - Re: HKS Engine Report (Harry Griffin-Beale) 5. 12:15 PM - Re: Re: Kolb model differences Converting a FireStar to an Ultra Light Vehicle? (Jack B. Hart) 6. 07:02 PM - Re: Firestar II HKS Conversion (Dave Bigelow) 7. 07:10 PM - Re: HKS Engine Report (Dave Bigelow) 8. 07:23 PM - Re: Re: Firestar II HKS Conversion (Herb Gayheart) 9. 07:26 PM - Re: Re: Firestar II HKS Conversion (Herb Gayheart) 10. 07:44 PM - Re: Kolb Flying (GeoR38@aol.com) 11. 08:19 PM - Re: Winter high speed taxi (GeoR38@aol.com) 12. 11:04 PM - HKS engine install (Richard Girard) ________________________________ Message 1 _____________________________________ Time: 06:42:47 AM PST US From: "Jimmy" Subject: Kolb-List: Firefly tube To anyone on the list: How thick is the boom tube on a Firefly? Thanks, Jimmy Hankinson 912-863-7384 Firefly #035, (N6007L) JYL (Plantation Air Park) Pegasus Field (Home) 2000 Feet X 100 Feet- Grass Rocky Ford, Georgia Do Not Archive -------------------------------------------------------------------------------- Try SPAMfighter for free now! ________________________________ Message 2 _____________________________________ Time: 07:03:34 AM PST US From: "John Hauck" Subject: Re: Kolb-List: Firefly tube | | Thanks, | | Jimmy Hankinson Jimmy: I don't know about the FF specifically, but most 5 and 6 inch tail booms are .058" wall thickness, I think. john h mkIII PS: Winter returned to hauck's holler over night. Glad I am in the "mole hole" (basement) working on the mkIII. ________________________________ Message 3 _____________________________________ Time: 07:59:04 AM PST US Subject: Re: Kolb-List: Firefly tube From: "Jim Dunn" The Fireflys use 6061-T6 Aluminum. The tube used to be 0.049" which is a non standard size. They are now 0.052" wall thickness, which is a standard size made by Alcoa. Jim Dunn N. Idaho > > | How thick is the boom tube on a Firefly? ________________________________ Message 4 _____________________________________ Time: 09:55:40 AM PST US From: "Harry Griffin-Beale" Subject: Re: Kolb-List: HKS Engine Report Hi Guys, Have been a member of this list for a couple of years. Really am thankful for all the info available and I guess it is time to ask for some feedback on this subject. I am flying a Twinstar MKII with a Rotax 532. I have put 340 hrs of great flying on this engine with no problems. I am now looking at a 300 TBO as that is what is recommended. I fly on the West Coast of Vancouver British Columbia, Canada. Most of my flying is in the mountains or over water. I will fly 27 miles across the strait of Georgia to Vancouver Island. or over 6000ft passes to get somewhere. Always in the back of my mind is when is this little 2 stroke going to quite. Most of my fellow pilots here have gone over to the 4 stroke Rotax and can't say enough about it. I can't go up as I am already over the recomended power for this aircraft. I yearn for the peace of mind that a 4 stroke delivers so I have been looking for something better for a couple of years now. The HKS700E seems to be the answer, my only reservation regarding this engine is the air cooled system. Any feedback would be appreciated Regards Harry Twinstar MKII Vancouver, BC ________________________________ Message 5 _____________________________________ Time: 12:15:37 PM PST US From: "Jack B. Hart" Subject: Re: Kolb-List: Re: Kolb model differences Converting a FireStar to an Ultra Light Vehicle? At 01:07 PM 3/16/07 -0700, you wrote: ............................ John, Thank you for the info. It looks like a FireStar could be easily be moved into the ultra light vehicle 103.7 category by getting rid of 21 pounds. This could be done by smaller wheels, less paint and a lighter engine. Using AC 103-7 Appendix 1, 2, 3 & 4, a 33 hp Mini III Simonini engine would push it 63 mph. Changing to this engine would put the FireStar under the weight limit. Calculations for a gross weight of 550 pounds gives a stall speed of 27.5 mph. If one assumes a converted (re-engined) FireStar weighs 248 pounds dry, with five gallons of fuel and flown by a standard FAA 170 pound pilot, the wing loading would be 3.2 pounds per square foot. This would give a stall speed of 25 mph with out flaperons. One major advantage to converting is the extra load carrying capacity of fifty pounds over a FireFly. Jack B. Hart FF004 Winchester, IN ________________________________ Message 6 _____________________________________ Time: 07:02:03 PM PST US Subject: Kolb-List: Re: Firestar II HKS Conversion From: "Dave Bigelow" Herb, There is no housing for an oil thermostat on the HKS that I know of - an oil thermostat can be plumbed externally. Tuning the airflow through the radiator to maintain an acceptable range of temperature is simple, and seems to work well for most people. -------- Dave Bigelow Kamuela, Hawaii FS2, HKS 700E Read this topic online here: http://forums.matronics.com/viewtopic.php?p=101318#101318 Attachments: http://forums.matronics.com//files/oilthermostat_1_283.jpg ________________________________ Message 7 _____________________________________ Time: 07:10:14 PM PST US Subject: Kolb-List: Re: HKS Engine Report From: "Dave Bigelow" > "Kitplanes magazine" did a thorough engine report on the HKS 700E in the > latest edition. Mike, would you scan and post the HKS report? I couldn't get your email address to work. Harry, look here: http://forums.matronics.com/viewtopic.php?t=13013. So far, I haven't had any cooling issues with my HKS. -------- Dave Bigelow Kamuela, Hawaii FS2, HKS 700E Read this topic online here: http://forums.matronics.com/viewtopic.php?p=101321#101321 ________________________________ Message 8 _____________________________________ Time: 07:23:17 PM PST US Subject: Re: Kolb-List: Re: Firestar II HKS Conversion From: Herb Gayheart Dave Pretty sure I saw it on a dealer page somewhere? Maybe a user page? It does exist... Herb On Sat, 17 Mar 2007 19:01:28 -0700 "Dave Bigelow" writes: > > > Herb, > > There is no housing for an oil thermostat on the HKS that I know of > - an oil thermostat can be plumbed externally. Tuning the airflow > through the radiator to maintain an acceptable range of temperature > is simple, and seems to work well for most people. > > -------- > Dave Bigelow > Kamuela, Hawaii > FS2, HKS 700E > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=101318#101318 > > > > > Attachments: > > http://forums.matronics.com//files/oilthermostat_1_283.jpg > > > > > > > > > ________________________________ Message 9 _____________________________________ Time: 07:26:15 PM PST US Subject: Re: Kolb-List: Re: Firestar II HKS Conversion From: Herb Gayheart Here it is Dave/// http://world.std.com/~ejb/odyssey/ody_xo4_oil_system.html Herb On Sat, 17 Mar 2007 19:01:28 -0700 "Dave Bigelow" writes: > > > Herb, > > There is no housing for an oil thermostat on the HKS that I know of > - an oil thermostat can be plumbed externally. Tuning the airflow > through the radiator to maintain an acceptable range of temperature > is simple, and seems to work well for most people. > > -------- > Dave Bigelow > Kamuela, Hawaii > FS2, HKS 700E > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=101318#101318 > > > > > Attachments: > > http://forums.matronics.com//files/oilthermostat_1_283.jpg > > > > > > > > > ________________________________ Message 10 ____________________________________ Time: 07:44:25 PM PST US From: GeoR38@aol.com Subject: Re: Kolb-List: Kolb Flying In a message dated 2/18/2007 11:49:42 A.M. Eastern Daylight Time, emailbill@chartermi.net writes: Hi Gang I took this rear view picture while flying my plane over the Upper Peninsula of Michgan. You can see the redish blur of my red IVO Prop. Bill Vincent FS II DO NOT ARCHIVE ************************************** AOL now offers free email to everyone. Find out more about what's free from AOL at http://www.aol.com. ________________________________ Message 11 ____________________________________ Time: 08:19:22 PM PST US From: GeoR38@aol.com Subject: Re: Kolb-List: Winter high speed taxi Very very pretty,Indeed!! George Randolph florida Do not archive ************************************** AOL now offers free email to everyone. Find out more about what's free from AOL at http://www.aol.com. ________________________________ Message 12 ____________________________________ Time: 11:04:43 PM PST US From: "Richard Girard" Subject: Kolb-List: HKS engine install Herb, Harry, Dave et al, Here are the addresses of the HKS Installation and Operation Manuals. Installation manual http://www.hpower-ltd.com/pdf%20files/IManual_Eng.pdf Operation manual http://www.hpower-ltd.com/pdf%20files/OManual_Eng.pdf In the current version of the installation manual there is no mention of an oil thermostat. Unlike the Oddysey install, the second inlet to the oil tank is not plugged, but is used for a line coming directly from the engine. What you get is one line coming from the engine going directly to the oil tank and another going to the oil cooler and then to the tank. The oil temp sensor is at the bottom of the tank along with the line returning oil to the engine. When I talked to Dana at Flightstar he advised doing the same thing Dave has done, just cover a portion of the oil cooler to bring the temps up. Harry, I'm unsure of how to answer your question about cooling, but perhaps this will help a little. The Rotax 912 has air cooled cylinders and water cooled heads. The HKS has air cooled cylinders and oil cooled heads. In truth all "air cooled" engines get roughly 30% or their cooling from their oil, the HKS just goes one step further and circulates the oil through passages in the heads just as Rotax does the same with water (water and ethylene glycol mix) The principle difference between the two engines oiling systems is that the Rotax is a wet sump engine and the HKS is a dry sump i.e. Rotax pressure feeds oil to the engine after which it drains into the sump where it is picked up by the oil pump and the circulation begins again. The HKS has a second scavenging pump that picks up the oil from the sump and sends it to the oil tank, hence "dry" sump. Rick -- Rick Girard "Ya'll drop on in" takes on a whole new meaning when you live at the airport. ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message kolb-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Kolb-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/kolb-list Browse Digests http://www.matronics.com/digest/kolb-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.