Timber Tiger Aircraft  Light Sport Ryan ST Replica home
Timber Tiger Ryan ST replica Light Sport
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Text, photos, and website Copyright Nick Pfannenstiel   (303) 725-5439
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8/1/18:  We are back from AirVenture and what an experience it was!  We took multiple deposits and had an overwhelming response from our fan base.  Thank you so much to all who came to show support for the project.  We look forward to providing each of you with the best value we can cram into a kit!
Ryan ST replica
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Ryan ST replica
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10/4/18:  It's structurally complete! Well, aside from the wingtip leading edges, but close enough to celebrate with an update. The rest of the pre-bent leading edge was simply wrapped by hand. It took a piece of wood and help from an employee to get it started, but it was smooth sailing once a few clecos were in.

Now that we're on to the systems and the remainder of the covering, I'm hoping the pace picks up a bit. We're scheduled to be flying in late April/early May.

As it is, the plane weighs 376 lbs, including the controls, fuel tank, seat belts, upholstery, instruments, etc. This is putting us on track to meet the weight goal of 745 lbs empty.

For those who haven't seen, we've also gone through some numbers to fine-tune the gross weight.  After a few adjustments, the gros weight for sport pilots will be 1260 lbs and the gross weight for private pilots will be up to 1320 lbs.  The 1260 sport pilot gross is based on stall speed requirements.  This number is subject to change after the test flights.
Homebuilt Ryan ST replica kit from Timber Tiger Aircraft
Experimental Ryan PT-20 replica from Timber Tiger Aircraft
11/4/18:  What a crazy few weeks it has been. Iíve gotten the ELT installed, drilled holes for various antennas (hidden as well as possible), built and installed the lower rudder hinge V, got all controls hooked up and adjusted, and installed the brake cylinders and rear pedals. A lot of small stuff got done, but two things really stand out for this update: the nose bowl buck and the new tailwheel!

Yes, you read that right. A new tailwheel. During Oshkosh 2018, there was a lot of talk about tailwheels. As a response, we changed the tailwheel to a more modern steerable-castoring unit. This unit offers easier maintenance and replacement, but more importantly, it is what people know. Listening to our customer base is our #1 priority as we finalize the kit for manufacturing this coming summer.

Now letís get to this nosebowl buck. While our plane will accept the Rotax 912 engines, we are designing it specifically for the direct drive D-Motor LF-39 of 125 horsepower. Modern engine choices were a huge driving force in deciding on 95% scale for the replica. You can read more about that on our FAQ page. The original Ryan ST has a narrow cowling to house its rare-as-henís-teeth Menasco engine. This presents a challenge, as most modern engines are horizontally-opposed.

Enter our CAD Consultant, Glenn Gordon. Glenn, a master at his craft, was tasked with stuffing the D-Motor LF-39 into a cowl that was originally meant for an Inline-4. After countless hours of work and with the help of a CAD model from D-Motor, Glenn was able to fine-tune the cowl for a perfect fit, fooling the eye where required to maintain an authentic Ryan ST look.

The result of his work is shown here in the CNC cut nose-bowl buck. I added a few hand-cut parts for locating the inlet holes. This form is currently at the metal shop to see what they can do with it. Weíll have updates on that in a future post.
Ryan ST replica Aeronca tailwheel spring
Ryan ST replica homebuilder's tailwheel
Ryan ST replica nose bowl buck
Ryan ST replica nose bowl buck