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CU Rigging Notes

9,207 bytes added, 12:13, 2 September 2020
Ballast weights (as needed)
''v.1213/20192020''
''Maintenance information is in the Equipment officer’s guide.''
Rigging CU is quite easy and two people who know what they are doing can rig in 20 minutes. However, ASW19s are at heightened risk of rigging related accidents due to their controls not being self connecting, so make sure you have rigged correctly. If in doubt '''check with someone who knows how to do it'''.
 
== Converting to CU ==
 
Read through the CGC conversion notes and the ASW19b flight manual. You must obtain permission from the duty instructor and the CUGC committee before you can convert. Standard requirements are:
 
# At least 6 solos in a CGC Junior
# Demonstrate a fully held of landing in a slippery glider like the Perkoz
# Receive a full briefing
 
These can vary with the instructors discretion. Ideally you can convert to the CGC Pegase FVV first, which is very similar and permanently rigged.
 
Main points to consider from the CU conversion notes:
 
* It is high performance and slippery. Speed control on approach is very important, especially with airbrakes that are less effective than on the 2 seaters and Junior.
* Retractable undercarriage - don't forget to put it down!
* Poor low speed aileron authority. This makes the aerotow ground run tricky, and is recommended to thermal above 50kts.
== Pre-rigging notes ==
== Rigging ==
You need at least 2 people to rig CU, but 3 is helpfulif you are not feeling strong or the wind is high.CU's wings are particularly heavy, and holding the root might be a challenge if you are not confident. Feel free to ask anyone in the trailer park to help you rig, they should be happy to help, but the usual etiquette is that you will then help them with their wings. Don't take advantage of people! === Preparation ===
# Unlock trailer at both ends.
# Remove any boxes from the front of the trailer (these can get crushed when the lid opens).
# Open the trailer lid fully from the back.
# Remove trestles, ramp, ramp handles, etc. Be careful not to scratch the glider.# Secure Ensure the trailer. Make sure is secured with the tow ball is hitch attached to the permanent one ball and the rear stabilisers taking the tension to stop it wobbling. This sets up the rear of the trailer at the correct height.# Cover trailer corners and floor with carpet.# Pull out the ramp, ensuring the pins engage in the parking locationslots at the end. Place the two securing bolts in the holes above these pins to stop the ramp popping out.# Secure the ramp in the '''upright (raised)''' position using the red pin.# Move wings out horizontally to the edge of the trailer to provide more fuselage clearance.# Undo the strap that holds the tail down (this may not be attached when the trailer is parked).
=== Removing Fuselage ===
# Lower the end of the trailer if needed. Extend the trailer legs to stop it from wobbling.# Remove carpet from wing tips and cover trailer corners# Attach the ramp to the end of the trailer, the pivot jack at the end should be in the low position with the wheel extended AWAY from the trailer side.# Move wings out to edge of trailer# Undo blue strap that holds the tail down (may not be attached when the trailer is parked)# Lift fuselage by the black handle strap around tail and slide it out of trailer (until the belly dolly reaches the end of the ramp. '''mind Mind the top of the fin as you come out, and be careful not to trip over the ramp.''')# Remove the strap though the fuselage, and tennis ballsand the tail strap. (Tennis balls may might not be installed when the trailer is parked).# Remove strap on Ensure the straps for the battery (behind your head when sitting in the glider) are clear of the space for the tailwing roots.
=== Connecting the starboard wing (right) ===
[[File:CUTrestles.jpg|thumb|right|Recommended trestle locations.]] Always rig with the right wing with first (this has the fork first). Person 1 is the person in charge of the rig.
# Person 1 2 lifts the wing tip and slides the wing out of trailer (. '''mind Mind the wing on the pins on the fuselage and on the edge of the trailer''').# Once fully out, person 2 1 lifts the root and carries out it clear of the trailer.# Person 2 rotates the wing90 degrees so it is perpendicular to the fuselage.# Rotate When ready, both people rotate the wing so that it is flat, and place ready to slide into the fuselage.# Person 1 places spar in hole in fuselage (. '''make Make sure that the fuselage doesn’t wobble''').# Slide Both slide the wing in (. '''make Make sure that the control rods slide into the holes and don’t catch on the fuselage'''). Person 1 may have to instruct person 2 on whether they need to move the wing forwards/backwards/up/down so that it slides in flush. Make sure the gap between the wing is uniform and about 3-5mm.# Once fully in, person 2 Person 1 places a trestle under just outboard of the silver slide on the tipwing, person 1 being careful not to put the trestle on the aileron. Person 2 can relax.
=== Connecting the port wing (left) ===
Repeat as for the starboard wing, except place the trestle at the tip. Check again that the wing/fuse gaps are even and haven't changed with the second wing going in. See picture for recommended trestle locations.
=== Inserting the main pins ===
[[File:CU Main Pins.jpg|thumb|right|The main pins in, but not rotated and latched into place.]]
Inserting the pins should be a quick an easy task taking less than a minute, if they are not going in the wings are not level and not aligned correctly.Do not blindly force the pins in; take a moment to step back and assess if its not easy. Make sure you give your wing tip holder a rest if it is taking a long time!
# Person 1 removes a pin from green bag (they are identical). The orange bag This is stored under on the seat cushion when the glider is de-rigged, or sometimes in the plastic box. Make sure they are greased; if not, then apply a little from the grease tub with the red lid in the plastic box.# Person Look down the holes for the pins; you should be able to see if the holes line up or what needs doing to make them line up. Usually, person 2 lifts one on the port (left) wing tipneeds to lift slightly.# Person 1 inspects the pin holes, behind the seat in the spar, and gives instructions to person 2 whether to move the wing tip up/down so that the holes in each spar align/fwd/back. Check Keep checking that the both wings are flush with the fuselage, if not it may be necessary to move the wing tip forward/backward to achieve alignmentfuse.# Person 1 inserts Put the starboard pin into one of in first, all the holes as far as it will go (usually about half way)if you can.# Person 1 removes Repeat for the second pin and inserts it in the second hole fully. This may require some additional moving of the wing tip by person 2.# Person 1 then can push pin 1 fully in.# Rotate the pins so that handles meet, at the bottom and '''lock them in place with the safety catch halfway between the pins'''.
# Person 2 can now relax.
 
Some people have success putting the first pin in half way, then getting the second pin in, and returning to the first. Do this if you are struggling. We also have a white machined plastic rigging aid in the green bag. You can put this in the holes and rotate it to attempt alignment.
 
=== Lower the wheel and remove from dolly ===
 
# Lower the main wheel using the lever in the cockpit. Take the opportunity to check the tyre and wheel brake condition.
# Lower the jack using the long bar; take the tension off the pin, pull the pin out, then gently lower the ramp either way as is convenient. Don't move the lever towards the wing unless you are sure it is clear.
# Gently push the glider backwards to be clear of the the belly dolly.
=== Connecting the tail plane ===
This step can be done before moving the glider off the dolly if required.
 
# Collect the tailplane bolt, allen key and wire tool from the green bag.
# Push the wing root dollies to the back of the trailer, out of the way.
# Person 1 & 2 stand in the trailer at each end of the tailplane, which is attached to the roof of the trailer.
# Person 2 (at the back of the trailer facing forwards) supports the tailplane.# Person 1 (at the front facing backwards) pushed pushes the handle on the back support roof mount to his leftrelease the tail, making sure the support will tailplane doesn't drop and person 1 catches it so that it does not crash into anything.# Remove the tailplane from the trailer and avoid scratching the glider with itor tripping over the ramp.# Lower the tailplane onto the fin (putting the tailplane mount in the big square hole) and then push backwards firmly to lock in place.# Use the metal wire to pull back the small metal loop on the top of the tail plane, and place the bolt into the tailplane a do . Do the first few turns by hand to avoid cross threading, then tighten up with the allen key. Slot the wire lock into the closest bolt slot once it gets tight. {{Warning|Note that the metal loop is very fragile. If it gets damaged it will need cutting out of the tailplane, which is very expensive.}}# Tighten Return the bolt as far as it will go wire tool and then loosen one notch, allen key to the metal loop will fit into one of the cuts in the boltgreen bag.
=== Lower Connecting the main wheel controls ===
# Lift the fuselage up using the jack if required # Lower the main wheel using the lever in the cockpit# Lower the jack using the bar stored on the left inside side of the trailer# Gently push the glider back on the belly dolly === Connect the controls ==={{Warning|This is a safety critical action and must be done correctly; check and double check control connections.}}
{{Warning|This # Remove silver wing guards from each wing, careful not to bash the point where the aileron connectors are.# Remove the fiberglass cover on the fuselage (you can use the same wire tool as is a safety critical action and must be done correctly; check and double check control connectionsused for the elevator to open the flap).# Trim the glider fully rearwards (nose up) to help with connecting the elevator.}}
# Remove wing guards from each wing, careful not to bash the point where the aileron connectors are.
# Remove the protector from the elevator control.
# Connect each control by:
## Pulling down the collar
## 2 x ailerons
# Ailerons and air brake controls can be accessed from the little panel behind the cockpit.
# Roll the connection around in your fingers and make sure it doesn't pop off when you gently pull it.
# Once controls are connected, close and lock the little panel. '''Make sure that the little panel is taped up securely with a wing tape, as the locking mechanism does not lock it fully.'''
 
{{Warning|Proper positive control checks are critical here.}}
=== Install total energy tube ===
# Total The total energy tube is kept in the pocket in the cockpit. # Slide it into the hole in the fuselage halfway between the wings and the tail, with the two holes facing backwards.## '''Don’t push too far, the lip on the total energy tube should be flush with the glider, don’t push it any further or you will damage the glider'''## '''If it is pushed too far the tube would be blocked and there will not be any reading of on the vario'''# The two small holes on the tube should face backwards
=== Install batteries and parachute ===
# Batteries The batteries are stored in the back of the hangar and are marked CU. The parachute is in a black bag in the bottom of the main CGC 'chute cupboard. Make sure to DI it like you would any 'chute. # Batteries go into the holders behind the pilot's head and are held in by straps. Make sure the batteries aren't loose.# Plug battery wire wires into the connectors. Over time the battery life declines. Inform the equipment officer if they are running out of juice early in the day.
=== Install Vertica (optional) ===
{{Warning|Status Vertica files are out of the vertica is UNKNOWNdate (Sep 2019), you are advised to use XCSoar on your phone.}}
# Vertia flight computer is kept in the CUGC box below the parachute room
# Mount the glide computer using the RAM x-grip mount in the centre of the instrument panel
# Adjust the positioning by slightly loosen the two screw handles, make sure NO INSTRUMENT IS COVERED BY THE PHONE, then tighten the two screws again
# Plug in the usb power cable. You may need an adaptorIn July 2020, a daisy chain of mini-USB, since the cable has an old micro -USB and USB connector-C adaptors are available.
=== Wing tape ===
[[File:CU ballast weights.jpg|thumb|right|Fitted ballast weights.]]
Ballast weights are stored in on the CUGC bottom shelf of the battery cupboard in the parachute room(next to the office).
# Check ballast requirements and remember the conversion between ballast weight and equivalent pilot weight (x2.5)
# Ballast weight weights go on a spindle in the nose# To gain access to the spindle, sit on the left hand side of the glider and apply full left rudder. Remove the nut (don’t and washer from the spindle. '''Be careful not to lose)these.'''# To You’ll need to add a the ballast weight you will need weights one by one. It is necessary to slightly close the canopyto slide each weight in.# Replace Carefully replace the washer and nut and secure . Check the the rudder cable is clear of the ballast stack of weights. Tighten the nut.
== Daily inspection ==
During daily inspections make sure that you check the condition of the glider’s skid. If the bottom foot is worn, the glider is U/S and skid needs replacing. Please see a picture of new skid for reference.
The skid has been replaced in Sep 2019. Dragging with the skid on the ground should be avoided if possible and use of the tail dolly is preferred. Dragging on tarmac/concrete should be avoided at all. Inspection of the condition of the skid should be done as frequently as possible to monitor the wornwear. Check the glider has valid insurance and ARC during the DI. A copy of the insurance should be in the first page of the DI book, and the ARC behind the seat.
== De-rig ==
In general, the de-rig is just the reverse of the rig, but here are some extra pointers:
'''Always wash the glider if it is at all dirty, especially the leading edges and underside of the fuselage.''' If the dirt/bugs are left, it takes much longer to clean than if they are cleaned off at the end of the day. Bucket and sponge are provided, and use the leather to dry. # Prep the glider as much as you can before pulling it onto the dolly in front of the trailer, which can be potentially in the way of other people derigging. You can take the tape off, tailplane, batteries, parachute, '''TE probe''' etc all before you get to the trailer.# Have the ramp in the lowered position with the big wheels on the trailer side of the ramp. Make sure the two pins are in place to secure the ramp (Don't lose these pins!).# When bringing the fuselage onto the belly dolly, make sure you remove the tail dolly. The fuse' should be dragged onto the belly dolly so that the leading edge of the dolly is in line with the '9' or 'B' on the ASW 19B B lettering on the side of the fuse. This means it will seat nicely in the trailer. This can be tricky. If it's being really stubborn, pull the fuse on further once the wings are removed. I usually get the aircraft lined up in front of the trailer, remove the tow out gear but leave the wing dolly then. I can then drag the glider forwards onto the dolly myself.# Once on the dolly, put a trestle under one wing, raise the ramp with the lever and put the pin in to secure it. This can also be stubborn.# Raise the main wheel.# Make sure the trailer is ready with wing dollies at the end. Disconnect all the controls and tape, and put the silver wing guards back on the correct wings. Do this 'before' you ask for help.# Take the left wing off first, as the exact reverse of the rig. The pin on the wing dolly goes into the spar hole closest to the wing root. Roll wing in gently, taking care to remain clear of the corner of the trailer (which should be covered in carpet) and the lugs on the fuse (which you could cover with tennis balls). The dolly will hit a physical stop at the front of the trailer. Initially, slide the wings fully outboard (to give more clearance when rolling in the fuse). # Repeat with the right wing. Now the fuse goes in to trailer as the exact reverse of the rig. == Closing the trailer == Before attempting to close the trailer, check that:* Ramp is stowed and lowered (with wheels towards trailer front).* Wings are slid fully forwards and roughly outboard of the two metal catches on the trailer floor.* Carpet removed from trailer corners.* Tail skid is properly located in depression in base of trailer* Nothing in the front of the trailer will foul the lid when you close it* If parked at GRL, everything that’s going to be stored in the back goes into the trailer: trestles, wing-wheel, tail-dolly (placed carefully between wings and fuse); tow-bar and ramp lever (outboard of wings); ramp securing pins (in ramp channels). ''' Make sure that the tow out gear and trestles are not higher than the top of the wings, or they will catch on the trailer roof when it is lowered.''' # Lower the lid of the trailer carefully, stopping if you feel resistance. Check the wing tips go in the carpet slots in the lid.# Put the big plastic box in the front of the trailer. '''Do this last so it isn't squashed when the lid comes down.'''# Close and lock the back flap and the front door. The back flap can be tricky if not properly aligned.# Check you haven't left anything laying around the trailer. == Towing the trailer / Preparation for XC == This is not a comprehensive guide, just some things to think about. '''If you are going to go XC in CU, you must make sure the trailer is serviceable before you set off.'''It's worth finding out when a trailer was last driven. If more than a few months, take it for a spin to check it out if you are unsure of its road worthiness, you can use the club Hilux. A standard check of the trailer includes:* Tyres: Have you checked their pressure? When were they last changed? Are they cracked? * Brakes: Does the handbrake work? Are the brakes adjusted correctly, ie do they apply as the trailer decelerates? * Electrics: '''This is a must.''' Do all the lights work? You have to test this.
When packing upIf you are intending to tow CU, here are some things to think about:* Experience: Have you towed before? If not, avoid putting then you '''definitely''' should practice around the tow out gear airfield doing manoeuvres and some reversing in case you get stuck on the roads.* Car: Is it powerful enough? What is the weight relationship between car/trailer? Do you have electrics? Have you got a number plate to put on the front trailer?* Licence: Do you need a towing licence? (tow hook endYes if the combo is over 3 tonnes) of * Insurance: Are you insured for trailer towing? Is the trailer as it can easily be squashed when glider insured on the lid comes down.road?
A checklist for if you, or someone else, has to tow the trailer:# Is the glider secure? Tail strapped down, wings in dolly holders.# No loose items. It's best to put all the bits in the tow car, but you can get away with some stuff in the front if it is properly secured.# Make sure to lock bring all the trailer when tools/parachute/batteries/key you leaveneed. The back door is tricky. Lean on # Make sure to raise the legs at the RHS rear of the lid and you should be able trailer.# Attach the cars number plate to close the doorrear of the trailer.
== Soartronics BT connector ==
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