HOPPER
TANK LOCATION (Ducted Fan
Use)
All BVM sport
jets can have the 2 oz. hopper tank located on the right side of the fuselage
just below and forward of the Viojett shroud. Be sure the clunk is aft in the
tank. Glue tank in place on a 1" balsa block with silicon glue. We have had
very reliable performance with this set up and it is not in the way when
handling the cockpit hatch.
SPORT
JETS CARBON SPAR GLUE JOINTS
Check to see that you filled the gap in the #1 rib
where the carbon fiber spars exit. Use a filled epoxy glue. BVM's AeroPoxy
works great for this and many other high stress joints.
RETRACTS ALUMINUM ACTUATING ARM
Should you need to replace these parts, they
come with the shaft installed and thus are specific. Be sure to order left or
right main or nose unit. BVM Part #5260 - $15.00/ea.
DURO-STRUT COLLARS
This handy accessory for the Sabre and Sport Jet main
struts eases the rigging of the strut doors and wheel brake air lines. The
instructions are explicit about not overtightening the small set screw that
holds it in place. To further help prevent damage to the strut outer tube,
place a small scrap of rubber or nylon in the hole then apply the set screw.
The set screw is only to hold the collar in position. Add a drop of Zap-A-Gap
to securely retain it after all adjustments are made.
2nd
HAND KITS - You Need To Know
Sometimes you can get a really good deal on a kit
that's been sitting around unfinished because the modeler got too busy, etc. If
you have been building BVM jets, you have a pretty good idea what should be in
the box - all the parts, accessories, etc. If this "good deal" is going to be
your first BVM kit, you might need some help to be sure it's all
there.
If you do make the deal, be sure to treat yourself to a new set of plans and instructions. All fifteen of our current kits are on the CAD system and the plans are updated often. Average price for a set is $25.00.
GROUND
CONTROL
If you have a BVM
Sabre, T-33 or F-80 we want you to know that ground handling of these close
coupled main gear scale models is greatly improved with new "Duro-Struts." (See
details in NEW PRODUCTS section.) Be sure you have the crosswind handling kit
installed and use the BVM Jet Wheels and Brakes. You'll have all of the latest
products to truly give you "great ground control."
VIOJETT
SHROUD & STATORS
REINFORCE WITH
AEROPOXY
We
introduced AeroPoxy to you in Inlet #25. Without exception, every modeler who
purchased and is using this great product loves it and has ordered more. You
can put the nozzles in the freezer or flush them through with thinner. This
aerospace grade, slow cure glue is great for installing high stress components
into the fiberglass fuses and for reinforcing the stator system in the Viojett
fan assembly. First, trickle Zap CA into stator-to-shroud and
stator-to-aluminum mount joints, then apply AeroPoxy to joints. Make a small
fillet with your finger; it improves strength and air flow in the
corners.
THROTTLE LINKAGES (Ducted Fan
Use)
Change Every 50
Flights
The
throttle connect ball is nickel plated (for last two years of engine
production) so it is tough to wear out. However, it is a good idea to replace
the nylon socket, 2-56 steel threaded coupler and the .055" wire control rod
about every 50 flights to prevent a possible in-flight failure from fatigue.
Use Sullivan spring ball socket coupler.
FUEL
FILTERS (Ducted Fan Use)
You Gotta
Use Them - But!...
They must be back flushed often to prevent a clogged
condition from burning down your engine. The absolute best filter we have used
is the Sullivan #187 "Crap Trap" (large size). BVM now stocks this quality
product. Ask for BVM Part #2131 - $3.50.
ENGINE
REPAIR
This can be an
expensive learning curve in your shop as there is a lot to know. BVM will sell
you the parts if you wish, just expect to eat up good parts while you learn
what not to do, i.e., change a rod, crank pin must be polished and checked for
wear, roundness within .0004", taper less than .0001", no scratches,
etc.
SPORT
JETS WING ALIGNMENT PIN
Should you have a rough landing, check this carbon
fiber pin. It is designed to shear if it is severely stressed. Change it before
further flights if it is broken.