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Powered autogyro versions of the auto-kites have been developed simultaneously, the first of these being the B-7M which flew for the first time on 6 December 1955. This was followed on 8 July 1957 by the first B-8M (M = motorised) and by the first production B-8M on 9 October 1957. The B-8M is normally powered by a 72hp McCulloch piston engine. Optional features include a 90hp McCulloch engine and a mechanical rotor drive enabling the autogyro to make jump starts. A float version of the B-8M is known as the Hydro-Copter. K.Munson "Helicopters And Other Rotorcraft Since 1907", 1968
| Technical data for B-8M
Engine: 1 x McCulloch Model 4318 pistone engine, rated at 54kW,
main rotor diameter: 6.1m,
fuselage length: 3.45m,
height: 1.19m,
take-off weight: 227kg,
empty weight: 112kg,
max speed: 137km/h,
cruising speed: 72km/h,
service ceiling: 3810m,
range: 161km
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| Mike Jacobs, e-mail, 26.09.2020 | reply |
I have a 72 HP Mcculloch that I would like to convert to a dual carb Super Mac. Machining issues not a problem. Looking for some info on what needs to be done, prints, etc. any help will be appreciated. Thank You | | Jim Douma, e-mail, 03.02.2018 | reply |
DOES ANYONE KNOW WHERE TO FIND A 8 GALLON FUEL TANK SEAT.....THANKS | what is the best colour on the back u shape thing yellow is not so good i think blue will be good | | GANGADHAR, e-mail, 01.03.2011 | reply |
its very good | | Jan van den Steen, e-mail, 21.07.2012 | reply |
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I would like to know the correct fuel /oil ratio for the mac!
I am using 40 to 1 mix with good chainsaw oil,not outboard, | | Jan van den Steen, e-mail, 21.07.2012 | reply |
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I would like to know the correct fuel /oil ratio for the mac!
I am using 40 to 1 mix with good chainsaw oil,not outboard, | | Tonie Wycoff, e-mail, 26.09.2012 | reply |
I am looking for a Mac engine. Please call at 812-599-7283 if you have one or know where I can get one. THANK YOU |
| adu charles, e-mail, 13.07.2014 | reply |
I will like to build one of this plans. | | Ezequias, e-mail, 03.02.2015 | reply |
how do I buy the design of this gyrocopter ? | |
| | Otavio Araujo, e-mail, 02.03.2010 | reply |
I live in Brazil, South America [sorry about my english] and I have a Gyro-Copter Bensen with a mcculloch 4318 engine 90 hp. In this moment I am looking for carburator parts & gasoline bumb repair. If anyone can help me, thank you. Otavio | | Jonathan Barnard, e-mail, 21.12.2009 | reply |
I need parts for a McCulloch 4318 engine. Where could i find a coil for the mag or complete mag? | | Chris Ivins, e-mail, 12.04.2009 | reply |
Does anyone know where to find parts for the 4318? or a manual? |
| Ron, e-mail, 12.02.2009 | reply |
I need parts for a 4318, 72 hp McCulloch engine. Mag and prop hub would be good for a start. | | Jonathan Kuehne, e-mail, 19.04.2009 | reply |
There is a company in Texas that still supplies many if not all parts for these engines, and may even offer completely rebuilt engines as well. R&D Aeronautical Engineering Co Inc. This guy is out of Caddo Texas 900-527-2006 They have a manual of sorts, and a printed parts list that are well worth having. Also search the net for Skeet Wynans, who flys a Hummelbird behind one of these. There's some pretty good YouTube clips of him at Copperstate | | kiran, e-mail, 20.04.2009 | reply |
will u send me model sketch of your project let me know something about your project please | | terry, e-mail, 01.01.2008 | reply |
i have a mcculloch 4318 engine. having hard time starting. where can i find a service manual,what spark plugs it take? gap setting. find parts. thanks terry | | Matthew cody, e-mail, 25.11.2007 | reply |
I am interested in info on the McCulloch engine, I have one and would like to find a project for it thanks |
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Tonie Wycoff
I have complete mcculloch 72hp for sale
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