Tail Wheel Changes for Legal Eagle XL ORV

These changes are modeled after what Denny Sleen had on his Legal Eagle UL at Oshkosh 2018. I first installed this tail wheel on LEXL SR 7-1/2 and it worked very well. My first try on ORV did not work well, broke the weld from cross bar to tail wheel arm. I had intended to use .035 for the cross bar but used a piece of .028 and it was not thick enough. When it was rebuilt I used all .049 material. The tail post on ORV is 3/4″ x .035. for the Tail wheel vertical post used 5/8″ x .049 and reduced upper portion to 1/2″ x .049 with the retainer made of 5/8″ x .049. This fit into the tail post nicely and no bushing is used on the tail post. The tail wheel spring came from Mcmaster Carr 2.5″ long, 1.031 OD, 0.781 ID Part number 9620K31. Fastenal is another place I have purchased springs. The vertical posts for the tail wheel springs is 3/8z’ x .049 and the cross tube and tail wheel wheel tube are both 5/8″ x .049 with the tail wheel axle 3/4″ x .049. This is a very simple way to build a tail wheel installation, saves weight and works well. The wheel came from Aircraft Spruce and is for Sonex type aircraft. Drilled lighting holes and turned off excess metal to lighten it up.

First Flight with the 35 hp Briggs and Stratton.

This engine performs good and could have great future on the Legal Eagle except for it’s firewall forward weight. It performs on the same level a 42/45 hp 1/2VW and the Verner 3V except for weight. We were seeing 450 to 480 fpm on climb out and time from brake release to breaking ground was in line with the other engines mentioned. It was smooth at 3,600 engine rpm, 2,000 prop rpm and remained smooth except in the 1,400 to 1,600 rpm range of the engine. I have the same mufflers on exhaust pipes as on the BSV23 so noise is not an issue. All temperatures were within range and oil pressure was good. I will have more comments and information as time permits. This engine is stock, including carb. Governor has been removed and throttle linkage is direct to carb. The Warp drive ground adjustable prop is set for 3,600 max. engine rpm, static and on climb out that is what we were seeing, at WOT straight and level it would exceed this by about 50 rpm.

First Flights down runway with LEXL ORV and the BSV35

This is video showing first flights down runway with Legal Eagle XL ORV and the Briggs and Stratton Vanguard 35 with Ace Aviation Re-drive, 1.8 to 1, with Warp Drive Ground adjustable prop. Prop is set to where engine turns 3,600 rpm, prop 2,000 rpm. Engine is completely stock, event the Carb. Took the Governor arm off and throttle linkage goes directly to carb. Standard ignition, which is neat because once engine is started no electrical is required. The Stock Flywheel is 20 pounds and we have not found an aftermarket aluminum flywheel yet. Test flights were flown without the 8 pound weight in tail to offset engine weight but before first actual flight we will be adding the 8 pounds in tail. Compared to the BSV23 this engine is heavy and with the 8 pounds in tail it will be even heavier. Acceleration was good and engine operated smoothly. There is some shaking from 1400 to 1600 rpm but at flying speeds engine seems to be smooth. Prop balance has been checked.