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84" Apache Info

Old 02-10-2015, 08:16 AM
  #26  
johnchi54
 
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Location: Crystal Lake Illinois/ Nanjing China
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Not true I have the 84 inch hull #5 with twins each having two cyclinders (54cc )tuned pipes and pushing custom made jets drives. The model is very heavy and the engines each have a half gallon tank each. Servos are heavy duty and 1/4 scale with metal gears. It was a fun project but is hard to move about. In total I have over 9500.00 invested in this project.
Old 02-10-2015, 08:28 AM
  #27  
johnchi54
 
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The 84 inch by bonzi is an awesome model. Purchased my hull in August 2014 installed two twin cylinder gas powered motors hooked to custom made water jets. Everything had to be custom made including the couplers as these motors are very fast and standard items off the shelf would not hold up. I used all 1/4 scale servos with metal gears as well as half gallon tanks for each motor to get some long run times.''
The jet drives worked great and is very reliable. The set up was very complicated due to the twin engines. I also installed clutches and a water cooling system which exits through the exhaust system. It is a very expensive project. Jet drives were 1000 and the motors each run 1400 and everything has to be custom made including the water tight box because of the large servos. I used a trim system and bildge pump system to keep her dry in case of issue the ram sump pump works well. The model is very heavy but a radar gun clocked her at 65 miles per hours on the straight run which we could never do in the turns. Since we used jet drives and it needs a good turn area and has reverse whne the buckets goe down needing an additional servo. This month she is being torn down and getting custom paint so we can go to Toledo and show her off. The graphics will be applied and we named her screaming eagle. 6 months went into the project. MOtors were slightly modified with tuned pipes. We also found that a 53 degree impellor worked best after extensive testing as the water jet was made from billet alunimum in order to hold together. Rated horsepower is over 18 at 3500 rpm with a max rpm at 16000 but have not taken her that far other than bench testing. Good luck.
Old 02-04-2017, 05:22 PM
  #28  
1cube
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Hello can you post some pics of the 84" would like to see the jet drive setup,,,65mph is hard to believe by using a jet drive system because in model boats they aren't really efficient enough ,,particularly in a heavy hull like yours...but interesting
Old 02-23-2017, 09:47 AM
  #29  
bonzisports
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Bonzi Apache is now know as the Bonzi Classic. I am including the link that is from Bonzi' Sports website.
http://www.bonzisports.com/store/cla...6b4e09d2d8a1ed
If you have any questions please contact us at 317-844-4695. Thanks

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