Tethered Hydro
Tethered Hydro
Contact: Angela Gullick | Norman Lara | Info Page | Rule Book | Hydro Website
Tethered Hydroplanes are one of the oldest forms of model boating. It was natural that when organised competitions were held model boaters wished to compare the speed of their models at these events.
The first races were held over a straight course but, as speeds increased, it was decided to use a circular course. This means that the model is tethered to a central pylon by a cable of known length. The advantages of this are two fold; firstly it is much safer and secondly the speed of the model can be very easily calculated.
The models are divided into various classes, depending on engine size. At present these range from 3.5 cc to 30 cc for waterscrew driven boats and 2.5 cc for airscrew models. All of the waterscrew models are capable of speeds in excess of 100 mph, the fastest being the 10 cc Class with speeds of 135+ mph. Airscrew boats are approaching speeds of 160 mph. There are also classes for steam driven boats and the fastest of these regularly reach 100 mph with the fastest currently reaching 118 mph.
Competitions are held regularly from March to October at venues especially adapted for racing this type of model.
Upcoming Events
- 30th July 2022
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- 7th August 2022
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- 15th August 2022
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Pazardhik Worlds
15th August 2022 - 21st August 2022 @
42.18113, 24.33347
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- 16th August 2022
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Pazardhik Worlds
15th August 2022 - 21st August 2022 @
42.18113, 24.33347
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- 17th August 2022
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Pazardhik Worlds
15th August 2022 - 21st August 2022 @
42.18113, 24.33347
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- 18th August 2022
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Pazardhik Worlds
15th August 2022 - 21st August 2022 @
42.18113, 24.33347
View Map
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- 19th August 2022
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Pazardhik Worlds
15th August 2022 - 21st August 2022 @
42.18113, 24.33347
View Map
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- 20th August 2022
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Pazardhik Worlds
15th August 2022 - 21st August 2022 @
42.18113, 24.33347
View Map
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- 21st August 2022
Recent Hydro Posts
- Xmas Hydro Mazeword 1st December 2019
- 2019 Tethered Hydro Season Preview 31st December 2018
- Xmas Hydro Crossword Winner 30th December 2018
- Xmas Crossword 1st December 2018
- VMSC Tethered Hydro 16 Sep 2018 22nd September 2018
- VMSC Tethered Hydro 20180819 20th August 2018
- 2018 Naviga A/B Class European Championships 18th August 2018
- 2018 Euro A/B Championships Pazardzhik 26th July 2018
- Tethered Hydro Speeds 10th June 2017
- VMSC Hydro Day 15th May 2017
UK Speed Records
Organisation | Class | Name | Speed | Date | Date Sort |
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MPBA | B/S | Steve Poyser | 96.67 | 02/08/1998 | 19980802 |
MPBA | A | J Hyder | 130.05 | 08/10/2000 | 20001008 |
Naviga | B1 | Jim Free | 154.91 | 10/04/2000 | 20000410 |
Naviga | A2 | R James | 129.30 | 03/08/2003 | 20030803 |
MPBA | A/S | P Windross | 129.33 | 07/07/2013 | 20130707 |
Naviga | A3 | Norman Lara | 141.70 | 06/07/2014 | 20140706 |
MPBA | A/BR | R Hankins | 137.88 | 11/09/2016 | 20160911 |
Naviga | A1 | Pete Dirs | 122.64 | 13/08/2017 | 20170813 |
Naviga | A1/E | Norman Lara | 102.59 | 15/09/2019 | 20190915 |
MPBA | B | R Hankins | 124.76 | 19/06/2016 | 20160619 |
MPBA | Sport E | M Broad | 111.29 | 20/07/2014 | 20140720 |
MPBA | Sport 40 | Angela Gullick | 110.20 | 09/06/2019 | 20190609 |
MPBA | B1/S | Jim Free | 128.48 | 28/05/2017 | 20170528 |
MPBA | S/Novice | Jim Free | 111.30 | 29/08/1998 | 19980829 |