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Description
Uflex UP28R Rear Mount Helm 1.7 cu. 3/4" Tapered Stainless Steel Shaft [UP28R]UP28R Rear Mount Helm 1. 7 cu. 3 4" Tapered Stainless Steel Shaft Features: Available in four different displacement sizes Compact design Ball bearing piston race Built in lock valve for positive rudder lock Integral relief valve for over pressure protection 3 4 tapered stainless steel shaft Easily accessible lock valve and shaft seal for replacement Cast iron cylinder rotor for greater durability and longer life 1 4" NPT fitting for 3 8" tube
UP28R Rear Mount Helm 1.7 cu. 3/4" Tapered Stainless Steel Shaft
Features:
- Available in four different displacement sizes
- Compact design
- Ball bearing piston race
- Built-in lock valve for positive rudder lock
- Integral relief valve for over-pressure protection
- 3/4” tapered stainless steel shaft
- Easily accessible lock valve and shaft seal for replacement
- Cast iron cylinder rotor for greater durability and longer life
- 1/4" NPT fitting for 3/8" tube
- Includes 90° adjustable fittings for 3/8” tube and white bezel
- UP45R pump is ideal for double cylinder outboard applications
- UP45 pump is available also for inboard application
- X68 (optional) - 40894Z Chrome bezel
- KITF (optional) - 39664Y Remote fill adapter
Specifications:
- Mounting: Retro-cruscotto
- Displacement/Revolution: 28 cc-1.7 cu in
- # of Pistons: 5
- Relief Valve Setting: 70 Bar - 1000 PSI
- Maximum Wheel Diameter: 710mm - 28"
- Weight: 5kg - 11 lbs.
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4.6 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 5
Great resource
Format: Paperback
Great diagrams. Great resource/informational books. If any of your kids is curious about flight and physics. This is a great resource to have in a home, homeschool or classroom library!
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Reviewed in the United States on September 18, 2025
★★★★★ 5
Packed with ideas across most physics- a good purchase even for an adult.
Format: Paperback
Great information density! I though they did a good job of covering the basics to a higher resolution than I expected. I bought this for my 10 year old nephew, it's a bit out of his reach as far as information density- the pictures help a great deal but it is definitely a book that will require explanation for you ger children. I don't think it's ever too early to have exposure to this science.
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Reviewed in the United States on March 7, 2026
★★★★★ 5
Highly recommend!
Format: Paperback
Fantastic basically physics book! Illustrations are clear and concise, information is just the right combination of easy to understand but still deep enough.
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Reviewed in the United States on April 8, 2025
★★★★★ 5
Very good book
Format: Paperback
My son borrowed the book from local library, he kept reading and became very interested in physics. He asked me to buy one so he could read it anywhere anytime. We are very satisfied with this book.
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Reviewed in the United States on June 1, 2024
★★★★★ 5
Really great basic/intro to physi
Format: Paperback
Purchased as a birthday present for my very smart 14 year old grandson. The book gives simple discussions about most basic elements of physics. I’m hoping it is not too simple but not too complex. First look tells me I made a good choice. I may buy another one just to have around the house for other grand kids. I’ll give an update after he gets into it a bit.
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Reviewed in the United States on January 20, 2025