Gus Warren's Blog (15)

New forum for ULPower engines is now up.

I have established a forum page for Q&A about ULPower Aero Engines:

Added by Gus Warren on October 9, 2010 at 11:52am — 5 Comments

750 or 701? Well, both!!

We have been testing and our CH750 with the 97hp UL260i. Flight testing is going well and should be done for our trip to Sun n Fun.

Doing our best to keep it light it has minimal interior, EFIS, Comm, and Xpnder, along with the 159 lb UL260i engine. Empty weight came in at 701.5 lbs, on digital scales, weighed twice. The firewall forward kit is currently available for any of the ULPower engines, 97, 107, 118 and 130hp.…


Added by Gus Warren on April 8, 2010 at 10:00am — 6 Comments

Every time a bell rings......

a zenith gets its wings.

Well, not really. Jon Croke and I spent the last few days finishing up the Assembly and rigging for the CH750 DVD series. Now I have to get the engine and panel ready to fly. We will be changing over to the UL260i shortly and are verifying our engine mount data based on weighing it with the Corvair. More updates… Continue

Added by Gus Warren on July 3, 2009 at 9:53am — 2 Comments

Are you ready for Sun 'n Fun??

For those interested in the UL260i, look for our CH650 at Sun'n Fun. I can discuss the installations for the 601/650 as well as the 750. See you there.

Added by Gus Warren on April 20, 2009 at 7:28pm — 5 Comments

Sun 'n Fun UL260i Forum Schedule

I will be giving three forums on the UL260i during Sun 'n Fun:
Tuesday the 21st at 10am
Thursday the 23rd at 11am
Saturday the 25th at 11am
All held at the Contact! Engine Forum tent near the main entrance.

Added by Gus Warren on April 7, 2009 at 2:12pm — No Comments

UL260i? Yeah, its really that light!

Our ULPower FWF kit is coming together. The cowl will be back any day now. As you can see, the engine hangs out there quite a ways. Much time was spent on determining where the engine should be located to make the CH650 remain in CG with about any possible loading scenario. The engine comes in at 170 lbs. with prop, baffles, and oil. A very light 95hp, and now there is a high compression 260 that burns 100LL and is 105 hp. The empty weight of the 650… Continue

Added by Gus Warren on April 2, 2009 at 6:27pm — 17 Comments

750 Panel Parts in Particular

As our deadlines approach, many things are coming together. Installing the fuel tanks is all that remains of component building. The panels is finished and is on its way to being mounted permanently. We have an MGL avionics Enigma EFIS/GPS/engine monitor and their new V-10 comm radio. The V-10 weighs almost nothing and interfaces easily with the Enigma. The Garmin transponder and a Van's (sorry) map box complete the… Continue

Added by Gus Warren on April 2, 2009 at 6:13pm — 6 Comments

Motive Power Bolted On.

Today William Wynne brought by our Corvair engine and we had it bolted up in short order. I am calling the Corvair 750 combination a "Savage 750." The Savage has nearly all the necessary components to complete the installation of the engine. Only a few bits differ from the standard 601/650 Zenvair installation. The Weseman 5th bearing doesn't change the location of the prop flange and we are using a cowl… Continue

Added by Gus Warren on March 12, 2009 at 4:55pm — 1 Comment

A Treat of Treads

Our 750 is now up on it's wheels. It is coming together quickly now. The engine will be back from William Wynne's tomorrow with a Weseman 5th bearing on it and a mount for the 750. Jon is nearly completed with the stabilizer and one wing is about half way there. It will be a busy next couple… Continue

Added by Gus Warren on March 11, 2009 at 5:53pm — 1 Comment

750 Fuselage, making a place to sit

It's official, as you can clearly see, Jon is agog at how everything is cleocing together. The assembly of the seat area necessatated the joining on the forward cabin floor and gear channel to the rear fuselage to firm up a couple of areas where angles are fabricated beneath the seats. While it was together we drilled the holes in the side extrusion to the rear fuselage side. Once the forward side skin and the gear channel was clecoed to the rear… Continue

Added by Gus Warren on February 11, 2009 at 5:30pm — 2 Comments

750 Baggage Area

With the rear fuselage sides, top, and bottom all riveted together we have moved on to the baggage area. First the flaperon torque tube, bellcranks, and motor assembly were fitted in place. Next was the rear baggage panel followed by the baggage floor and tunnel pieces. Here they are all clocoed in place for drilling to final size. The floor and tunnel pieces will be reinstalled after the forward fuselage is joined to the rear to facilitate the… Continue

Added by Gus Warren on February 6, 2009 at 4:00pm — 6 Comments

750 Rear Fuselage

Today all the sides of the rear fuselage were united along with the rear baggage closeout. All the predrilled holes lined up perfectly and fit with no waves or wrinkles. Time to drill out all the holes to final size before disassembly for deburring and priming. Jon is a clecoing madman, especially when all the holes line up.

Added by Gus Warren on January 28, 2009 at 4:18pm — 3 Comments

750 progress

Today, after fnishing a few details on the rear fuselage bottom, Jon began the rear fuselage for the passengers side. The design of the corner extrusion's joggle makes an easy job of fitting the skin. Windows and control openings came cut from the factory. Every time a new box is opened, much time is spent salavating over the parts.

Added by Gus Warren on January 20, 2009 at 6:08pm — 1 Comment

UL260i in 601/650

We are also finishing up some details for the UL260i installation for the 601/650. Look for FWF kits for this soon from FwG.

Added by Gus Warren on January 19, 2009 at 5:01pm — No Comments

750 Start....

Today we started on the STOL 750. Jon Croke of HomebuiltHELP is filming for the 750 DVD series. He is starting with the rear fuselage.

Added by Gus Warren on January 19, 2009 at 4:41pm — 4 Comments

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