Advertisement

Quick Links

TBM DV8R MANUAL
Revised 1/4/2010
NOTE: This manual will be updated continually as new information is obtained.
The DV8R (pronounced deviator) was PCM Model's follow up to the AV8R (aviator) sport trainer jet
but was a completely new model designed from the ground up to be a superior all around
performance jet, hence the name (Deviator). Rather than simply "blow up" its smaller cousin we
decided to create a model than has looks and performance usually found in far more expensive jets
but in a package that fits a wide range of modeler's skills. With its large size, light wing loading and
generous landing gear stance, the DV8R has an incredible flight envelope that will prove favorable to
nearly any jet pilot. We are so impressed with DV8R's flight prowess, its smoothness and its extreme
stability at all speeds that we think you'll agree that it will be one of the best flying models you have
ever flown. TBM purchased the rights to the DV8R, and with minimal changes made it available as an
ARF.
Patrick McCurry
Troy Built Models purchased the right to the DV8R from Pat in 2008. Several changes were made to
improve the performance and ease of transportation. Incidences of the wing, stabs and turbine were
changed to accommodate turbines of very high output without any trim changes. The wing is 4 pieces
instead of 1 which allows the landing gear and all its components to remain connected if required.
The outer wing panels are split at the intersection of the ailerons and flaps. With the outer panels
removed, the plane is 44" wide, and can be easily rolled across the ground and into a truck on its
landing gear. Also the wing was moved back slightly to eliminate lead in the nose for CG reasons. We
changed the servos mounts so that they mount inside the surfaces rather than having the tops of the
servos exposed for a much cleaner look. The trailing link landing gear necessitated a wing change.
The trailing link gear is great for grass runways. The DV8R, as great as it was, is even better now that
1

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the DV8R and is the answer not in the manual?

Questions and answers

Summary of Contents for TBM DV8R

  • Page 1 The trailing link landing gear necessitated a wing change. The trailing link gear is great for grass runways. The DV8R, as great as it was, is even better now that...
  • Page 2 Options The DV8R as shipped to you is a traditional ARF. In addition to the kit there are items you will need to obtain to finish your model. Options such as landing gear, brakes, fuel tanks, servo mounts and more can be purchased directly from TBM.
  • Page 3 Engine selection - Please READ! The original DV8R is still flying with a JetCat P80, which is a perfect match for this model. TBM built its prototype ARF with a Jet Central 36 lb Rhino only to test out the DV8R’s maximum capabilities.
  • Page 4 1) Retractable landing gear with valve, air tank, air lines, servo, etc. The bottom of the wing is ready to accept the landing offered by TBM. This gear is of trailing link design for shock absorbing. This design is great for grass runways, or for cushioning a hard landing.
  • Page 5 13) Two 24” servo extensions for the ailerons 14) Two 12” servo extensions for the flaps 15) Several servo plug clips which prevent plugs coming apart (TBM part# MPIclip or PPMJP) 16) Servo mounting screws QUICK BUILD INSTRUCTIONS (for those in a hurry)
  • Page 6 6) Install batteries and radio 7) Fuel up with kerosene and go fly BUILD INSTRUCTIONS NOTE – Most planes of any type are tail heavy. Temporarily mount the batteries in the nose. They can be easily moved rearward if necessary. NOTE 2 –...
  • Page 7 Fuel Tank Installation Below is a photo of the installation of 2 DuBro 50 oz fuel tanks. TBM now offers a 101 oz fuel tank suitable for use in the DV8R. If you install the TBM 101 oz tank some of the former needs to be relieved for installation on the CG.
  • Page 8 5) Plumb tanks as shown. There is plenty of room to add a smoke tank in front of these tanks if desired. 6) Attach the TBM BFT (bubble-less fuel tank or equivalent) to the BFT mount and glue in place with Hysol where shown.
  • Page 9 TBM BFT has Velcro hot glued to the tank. A band of one-wrap Velcro hold it in place. After the assembly is completed, glue in place as a unit. See next photo for placement.
  • Page 10 Photos show placement of batteries, steering servo, retract, ECU, air gauge, receiver, brake and retract servos and valves, on/off switch, BFT, fuel valve, etc. Note that the air tank is located under the false floor on the opposite side of the BFT.
  • Page 11 Photo of another pilot’s layout of equipment inside the fuselage. NOSEWHEEL AND STEERING INSTALLATION Install nosewheel steering servo as shown. Install the nosewheel retract. Install the nosewheel steering. The nose gear steering is activated via pull-pull set up. Locate the materials to make up the control lines and proceed as follows.
  • Page 12 HINGING ALL CONTROL SURFACES – The prototype used CA hinges. While the proved adequate, we upgraded to flat pin hinges for production. Pin hinges have less resistance than CA hinges, and last longer. The Chinese do not do a good job of cutting slots for flat hinges, so the slots are not cut in place.
  • Page 13 term storage. If you prefer to glue to the two center sections together to provide increased structural integrity, you are welcome to do so. NOTE: Be sure to glue the joiners into the wing tips. You don’t want anything sticking out of the center section of the wing with the tips removed.
  • Page 15 From the photos, you can see how the wing tips are held onto the center section. There are 2 spars, one made of CF in the front and one made of aluminum in the rear. 1) Test that the rod (machine gun) goes completely through the 2 spars. 2) Find the hole in the front of the wing, and open it with a hot object 3) Insert the rod into the hole and test that it threads into the threaded insert in the back of the wing.
  • Page 16 3) Install included hardware. Use 2” titanium linkages for ailerons, 1.5” for flaps, ball links, and swivel clevis and horns.
  • Page 17 Elevator, Rudder and Aileron Servo Installation 1) All the servos for the control surfaces are similar. Install the servos using the mounting blocks (provided) as shown. Glue the mounting blocks to the hatches after you trim them to the correct size. We provide 4 wood blocks 1” x ¾” x ¼” for this purpose. BE SURE to drill holes for the servo screws to avoid splitting the wood.
  • Page 18 2) Use 48” servo extensions with safety clips. (Or use 36” extensions and a Y-harness though one servo must be reversed electronically as discussed above in radio section)
  • Page 20 3) Install the control horns by opening the holes in the covering, drilling to the appropriate size, soaking with thin ca, and assembling. 4) Install spars into the elevators as shown using Hysol 5) Remove covering and glue wood to wood to permanently glue elevators in place. NOTE: Always put a drop of Loctite or glue onto the nuts of the swivel clevis and the nuts on the 8-32 horns to keep them in place.
  • Page 21 Rudder servo hatches moved to the fin instead of the fuselage.
  • Page 22 5) Remove covering and glue wood to wood to glue rudders in place.
  • Page 23 Original style rudder servo mounts. Don’t use these. This photo shows the covering removed for gluing the rudders to the fuselage. So the same for the elevators. 6) If you use the inner hole on the SWB arms, then set the horns about 13/16” away from the surface from the rudder.
  • Page 24 All control horns should be at about 1” as shown with about ½” servo arms. We recommend 1” servo arms, yet use the inner hole. The throw required is minimal, yet we want full servo travel to maximize the mechanical advantage of the linkage. TURBINE INSTALLATION Installation of the turbine is simple.
  • Page 25 components have been installed for CG reasons. You can easily move the turbine fore or aft several inches to change the CG. For temporary installation use 2 small wood screws. Once you are satisfied with the CG, permanently install the turbine using machine screws and blind nuts. Permanently install the turbine before flying the first time.
  • Page 26 Photo of engine rails. These will need to be cut down for larger turbines. Use a drum sander and a vacuum cleaner to remove material. CANOPY The canopy can be painted as shown or not painted. You can have one pilot or two if you prefer. There are many options.
  • Page 27 RETRACT AND BRAKES The wing is already cut out for the TBM retracts. Test fit the retracts in place. Modify the mounts if necessary. Screw the retracts to the blocks provided.
  • Page 28 Photo shows bulkhead fittings and holes for bulkhead fittings and for aileron and flap servo extensions. These holes are hand cut in the prototype. In production the holes are laser cut.
  • Page 29 a. Photo of bulkhead fittings and aileron and flap servo extensions in place. b. For the brakes and retracts we suggest that you purchase 3 different colored air lines to keep things organized. We suggest 1/8” or 3mm line. Either of these lines work well with Festo 3mm fittings.
  • Page 30 Photo of wire bundles which go to the rear of the plane tied to the fuselage above the wing.
  • Page 31 Photo of the aileron servo mounting area.
  • Page 32 Photo of the new flaired area. The bottom front of the wing is now built up to mate perfectly with the fuselage. The wing can be 1 piece, 2 pieces, 3 pieces, or 4 pieces. Pilot’s choice.
  • Page 33 Turbine kill switch, a gyro and we’re up to 13 channels already! My DV8R utilizes “Y-harnesses” on all of the above and saves valuable channel space. In addition, operations like “Crow” are not necessary on DV8R, it has great slow down capabilities with the flaps.
  • Page 34 FLAPS AND LANDING One last note deals with flap operation. Most radios have the ability to put flaps on a knob or dial. Also many radios have an available three (3) position switch that is either a dedicated flap switch or one that is available as an auxiliary channel.
  • Page 35 FLYING the DV8R The DV8R is truly one of the smoothest jets you may ever fly. It has no bad manners and performs like a very large pattern model. If you set your model up as mentioned previously you will have no problems on your first flight.

Table of Contents